Miladinović, Zoran

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Authority KeyName Variants
orcid::0000-0003-2086-9064
  • Miladinović, Zoran (29)
  • Miladinović, Zoran Ž. (1)
Projects
New industrial and environmental application of chemical thermodynamics to the development of the chemical processes with multiphase and multicomponent systems Geopolymers - technology for converting the industrial waste into functional materials
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200051 (Institute of General and Physical Chemistry, Belgrade) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy)
Oxide-based environmentally-friendly porous materials for genotoxic substances removal Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200053 (University of Belgrade, Institute for Multidisciplinary Research)
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200287 (Innovation Center of the Faculty of Technology and Metallurgy) New products based on cereals and pseudocereals from organic production
Functional Cereal Based Products for People with Metabolic Disorder COST Action [TU 1301]
Advancing research in agricultural and food sciences at Faculty of Agriculture, University of Belgrade Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology
Synthesis and characterization of novel functional polymers and polymeric nanocomposites The membranes as sites of interaction between the intracellular and apoplastic environments: studies of the bioenergetics and signaling using biophysical and biochemical techniques.
Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200168 (University of Belgrade, Faculty of Chemistry)
Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden Nanostructured Functional and Composite Materials in Catalytic and Sorption Processes
Synthesis, processing and applications of nanostructured multifunctional materials with defined properties Develooment and utilization of novel and traditional technologies in production of competitive food products with added valued for national and global market - CREATING WEALTH FROM THE WEALTH OF SERBIA
Novel encapsulation and enzyme technologies for designing of new biocatalysts and biologically active compounds targeting enhancement of food quality, safety and competitiveness Strukturne modifikacije i reakcije mikroporoznih i mezoporoznih materijala
Unapređenje trajnosti i funkcionalnih osobina dijetetskih proizvoda tipa namaza visoke nutritivne i protektivne vrednosti Organisation for the Prohibition of Chemical Weapons (OPCW) [L/ICA/ICB-217652/18, L/ICA/ICB-108/21]

Author's Bibliography

ActivityCoefficients of the System {yKCl + (1-y)KH2PO4}(aq) at T=298.15 K Determined by Cell Potential Measurements

Ivanović, Tijana; Popović, Daniela Z. .; Miladinović, Jelena; Miladinović, Zoran; Pastor, Ferenc T.

(2023)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z. .
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc T.
PY  - 2023
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/995
AB  - Zero-current cell potential measurements were used to determine the solution activity coefficient in a ternary system {yKCl + (1 - y) KH2PO4}(aq) at temperature T = 298.15 K. The cell of the type K-ISE|KCl(mKCl), KH2PO4(mKH2PO4)|Ag|AgCl was used in the total ionic strength range, Im = 0.0886-1.0046 mol kg-1. In order to generate a set of parameters that can be applied in a wide range of mixed solution ionic strengths, the Pitzer, Scatchard, and Clegg-Pitzer-Brimblecombe models were used to fit all available experimental data, including cell potential and isopiestic measurements from the literature. The experimental and calculated values of thermodynamic properties for the studied system are in excellent agreement. Potential interactions and solution structure were discussed by means of the excess free energy of mixing via potential pairs, triplets, or quads for the investigated solution using the Scatchard model mixing parameters.
T2  - Journal of Chemical and Engineering Data
T1  - ActivityCoefficients of the System {yKCl + (1-y)KH2PO4}(aq) at T=298.15 K Determined by Cell Potential Measurements
DO  - 10.1021/acs.jced.2c00704
UR  - conv_1077
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. . and Miladinović, Jelena and Miladinović, Zoran and Pastor, Ferenc T.",
year = "2023",
abstract = "Zero-current cell potential measurements were used to determine the solution activity coefficient in a ternary system {yKCl + (1 - y) KH2PO4}(aq) at temperature T = 298.15 K. The cell of the type K-ISE|KCl(mKCl), KH2PO4(mKH2PO4)|Ag|AgCl was used in the total ionic strength range, Im = 0.0886-1.0046 mol kg-1. In order to generate a set of parameters that can be applied in a wide range of mixed solution ionic strengths, the Pitzer, Scatchard, and Clegg-Pitzer-Brimblecombe models were used to fit all available experimental data, including cell potential and isopiestic measurements from the literature. The experimental and calculated values of thermodynamic properties for the studied system are in excellent agreement. Potential interactions and solution structure were discussed by means of the excess free energy of mixing via potential pairs, triplets, or quads for the investigated solution using the Scatchard model mixing parameters.",
journal = "Journal of Chemical and Engineering Data",
title = "ActivityCoefficients of the System {yKCl + (1-y)KH2PO4}(aq) at T=298.15 K Determined by Cell Potential Measurements",
doi = "10.1021/acs.jced.2c00704",
url = "conv_1077"
}
Ivanović, T., Popović, D. Z. ., Miladinović, J., Miladinović, Z.,& Pastor, F. T.. (2023). ActivityCoefficients of the System {yKCl + (1-y)KH2PO4}(aq) at T=298.15 K Determined by Cell Potential Measurements. in Journal of Chemical and Engineering Data.
https://doi.org/10.1021/acs.jced.2c00704
conv_1077
Ivanović T, Popović DZ., Miladinović J, Miladinović Z, Pastor FT. ActivityCoefficients of the System {yKCl + (1-y)KH2PO4}(aq) at T=298.15 K Determined by Cell Potential Measurements. in Journal of Chemical and Engineering Data. 2023;.
doi:10.1021/acs.jced.2c00704
conv_1077 .
Ivanović, Tijana, Popović, Daniela Z. ., Miladinović, Jelena, Miladinović, Zoran, Pastor, Ferenc T., "ActivityCoefficients of the System {yKCl + (1-y)KH2PO4}(aq) at T=298.15 K Determined by Cell Potential Measurements" in Journal of Chemical and Engineering Data (2023),
https://doi.org/10.1021/acs.jced.2c00704 .,
conv_1077 .
2
2

Isopiestic determination of osmotic coefficients in the ionic strength range I-m = (0.9670-2.2160) mol.kg(-1) and activity coefficients determined by electromotive force measurements in the range I-m = (0.0897-1.0054) mol.kg(-1) of the {yKCl + (1-y) K2HPO

Ivanović, Tijana; Popović, Daniela Z.; Miladinović, Jelena; Miladinović, Zoran; Pastor, Ferenc T.; Nikolić, Anastasija

(2022)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc T.
AU  - Nikolić, Anastasija
PY  - 2022
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/897
AB  - The mean activity coefficients of KCl in the ternary system {y KCl + (1 - y) K2HPO4}(aq) were experimen-tally determined at T = (298.15 +/- 0.01) K by the electromotive force measurement (EMF method) using the cell of the type, K-ISEjKCl(m(KCl)), K2HPO4(m(K2HPO4))jAg|AgCl (ISE = ion-selective electrode), in the range of total ionic strength of the solution I-m = (0.10 to 1.00) mol.kg(-1) at different ionic strength fractions of KCl being y = (0.1011; 0.1997; 0.3016; 0.4027; 0.5006; 0.6018; 0.7018; 0.8051; 0.8988; 1). In addition, the osmotic coefficients of the system have been measured at the same temperature by the isopiestic vapor pressure method over the range of ionic strengths from (0.96698 to 2.21602) mol.kg(-1) using KCl (aq) as the reference solution, at ionic strength fractions of KCl being y = (0.2063; 0.3849; 0.6099; 0.8011; 1). Values of the mean ionic activity coefficients of KCl and osmotic coefficients in the system {yKCl+(1-y)K2HPO4}(aq) were treated by an extended form of Pitzer's ion-interaction model, Scatchard's neutral-electrolyte model and Clegg-Pitzer-Brimblecombe's equations based on the mole-fraction-composition scale. All three models gave similar quality representations of both sets of experi-mental results. There are two sets of previously published isopiestic data that were taken into consider-ation during treatment. The model parameters were fitted and optimized to all available thermodynamic data from EMF and isopiestic measurements to obtain an accurate and self-consistent description of properties and to form a set of parameters that can be used in a wide range of ionic strength of the sys-tem. The standard deviation of the fit for the ionic strength range from I-m = (0.0897 to 10.4350) mol.kg(-1) with two optimized mixing parameters of Pitzer's model without higher-order electrostatic terms was for the mean ionic activity coefficients of KCl and osmotic coefficients, s.d. (y(+/-)) = 3.5.10(-3) and s.d. (Phi) ) = 4.7.10(-3) respectively, with two optimized mixing parameters of the Scatchard model standard devi-ations were s.d. (y(+/-)) = 4.9.10(-3) and s.d. (Phi)) = 5.0.10-3 and with Clegg-Pitzer-Brimblecombe's model higher-order electrostatic terms not included, standard deviations were s.d. (y(+/-)) = 4.2.10(-3) and s.d. (Phi) ) = 4.8.10(-3).
T2  - Journal of Molecular Liquids
T1  - Isopiestic determination of osmotic coefficients in the ionic strength range I-m = (0.9670-2.2160) mol.kg(-1) and activity coefficients determined by electromotive force measurements in the range I-m = (0.0897-1.0054) mol.kg(-1) of the {yKCl + (1-y) K2HPO
VL  - 353
DO  - 10.1016/j.molliq.2022.118767
UR  - conv_1003
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. and Miladinović, Jelena and Miladinović, Zoran and Pastor, Ferenc T. and Nikolić, Anastasija",
year = "2022",
abstract = "The mean activity coefficients of KCl in the ternary system {y KCl + (1 - y) K2HPO4}(aq) were experimen-tally determined at T = (298.15 +/- 0.01) K by the electromotive force measurement (EMF method) using the cell of the type, K-ISEjKCl(m(KCl)), K2HPO4(m(K2HPO4))jAg|AgCl (ISE = ion-selective electrode), in the range of total ionic strength of the solution I-m = (0.10 to 1.00) mol.kg(-1) at different ionic strength fractions of KCl being y = (0.1011; 0.1997; 0.3016; 0.4027; 0.5006; 0.6018; 0.7018; 0.8051; 0.8988; 1). In addition, the osmotic coefficients of the system have been measured at the same temperature by the isopiestic vapor pressure method over the range of ionic strengths from (0.96698 to 2.21602) mol.kg(-1) using KCl (aq) as the reference solution, at ionic strength fractions of KCl being y = (0.2063; 0.3849; 0.6099; 0.8011; 1). Values of the mean ionic activity coefficients of KCl and osmotic coefficients in the system {yKCl+(1-y)K2HPO4}(aq) were treated by an extended form of Pitzer's ion-interaction model, Scatchard's neutral-electrolyte model and Clegg-Pitzer-Brimblecombe's equations based on the mole-fraction-composition scale. All three models gave similar quality representations of both sets of experi-mental results. There are two sets of previously published isopiestic data that were taken into consider-ation during treatment. The model parameters were fitted and optimized to all available thermodynamic data from EMF and isopiestic measurements to obtain an accurate and self-consistent description of properties and to form a set of parameters that can be used in a wide range of ionic strength of the sys-tem. The standard deviation of the fit for the ionic strength range from I-m = (0.0897 to 10.4350) mol.kg(-1) with two optimized mixing parameters of Pitzer's model without higher-order electrostatic terms was for the mean ionic activity coefficients of KCl and osmotic coefficients, s.d. (y(+/-)) = 3.5.10(-3) and s.d. (Phi) ) = 4.7.10(-3) respectively, with two optimized mixing parameters of the Scatchard model standard devi-ations were s.d. (y(+/-)) = 4.9.10(-3) and s.d. (Phi)) = 5.0.10-3 and with Clegg-Pitzer-Brimblecombe's model higher-order electrostatic terms not included, standard deviations were s.d. (y(+/-)) = 4.2.10(-3) and s.d. (Phi) ) = 4.8.10(-3).",
journal = "Journal of Molecular Liquids",
title = "Isopiestic determination of osmotic coefficients in the ionic strength range I-m = (0.9670-2.2160) mol.kg(-1) and activity coefficients determined by electromotive force measurements in the range I-m = (0.0897-1.0054) mol.kg(-1) of the {yKCl + (1-y) K2HPO",
volume = "353",
doi = "10.1016/j.molliq.2022.118767",
url = "conv_1003"
}
Ivanović, T., Popović, D. Z., Miladinović, J., Miladinović, Z., Pastor, F. T.,& Nikolić, A.. (2022). Isopiestic determination of osmotic coefficients in the ionic strength range I-m = (0.9670-2.2160) mol.kg(-1) and activity coefficients determined by electromotive force measurements in the range I-m = (0.0897-1.0054) mol.kg(-1) of the {yKCl + (1-y) K2HPO. in Journal of Molecular Liquids, 353.
https://doi.org/10.1016/j.molliq.2022.118767
conv_1003
Ivanović T, Popović DZ, Miladinović J, Miladinović Z, Pastor FT, Nikolić A. Isopiestic determination of osmotic coefficients in the ionic strength range I-m = (0.9670-2.2160) mol.kg(-1) and activity coefficients determined by electromotive force measurements in the range I-m = (0.0897-1.0054) mol.kg(-1) of the {yKCl + (1-y) K2HPO. in Journal of Molecular Liquids. 2022;353.
doi:10.1016/j.molliq.2022.118767
conv_1003 .
Ivanović, Tijana, Popović, Daniela Z., Miladinović, Jelena, Miladinović, Zoran, Pastor, Ferenc T., Nikolić, Anastasija, "Isopiestic determination of osmotic coefficients in the ionic strength range I-m = (0.9670-2.2160) mol.kg(-1) and activity coefficients determined by electromotive force measurements in the range I-m = (0.0897-1.0054) mol.kg(-1) of the {yKCl + (1-y) K2HPO" in Journal of Molecular Liquids, 353 (2022),
https://doi.org/10.1016/j.molliq.2022.118767 .,
conv_1003 .
3
3

NMR Metabolomics in Serum Fingerprinting of Schizophrenia Patients in a Serbian Cohort

Simić, Katarina; Todorović, Nina; Trifunović, Snežana; Miladinović, Zoran; Gavrilović, Aleksandra; Jovanović, Silvana; Avramović, Nataša; Gođevac, Dejan; Vujisić, Ljubodrag; Tešević, Vele; Tasić, Ljubica; Mandić, Boris

(MDPI AG, 2022)

TY  - JOUR
AU  - Simić, Katarina
AU  - Todorović, Nina
AU  - Trifunović, Snežana
AU  - Miladinović, Zoran
AU  - Gavrilović, Aleksandra
AU  - Jovanović, Silvana
AU  - Avramović, Nataša
AU  - Gođevac, Dejan
AU  - Vujisić, Ljubodrag
AU  - Tešević, Vele
AU  - Tasić, Ljubica
AU  - Mandić, Boris
PY  - 2022
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/951
AB  - Schizophrenia is a widespread mental disorder that leads to significant functional impairments and premature death. The state of the art indicates gaps in the understanding and diagnosis of this disease, but also the need for personalized and precise approaches to patients through customized medical treatment and reliable monitoring of treatment response. In order to fulfill existing gaps, the establishment of a universal set of disorder biomarkers is a necessary step. Metabolomic investigations of serum samples of Serbian patients with schizophrenia (51) and healthy controls (39), based on NMR analyses associated with chemometrics, led to the identification of 26 metabolites/biomarkers for this disorder. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) models with prediction accuracies of 0.9718 and higher were accomplished during chemometric analysis. The established biomarker set includes aspartate/aspartic acid, lysine, 2-hydroxybutyric acid, and acylglycerols, which are identified for the first time in schizophrenia serum samples by NMR experiments. The other 22 identified metabolites in the Serbian samples are in accordance with the previously established NMR-based serum biomarker sets of Brazilian and/or Chinese patient samples. Thirteen metabolites (lactate/lactic acid, threonine, leucine, isoleucine, valine, glutamine, asparagine, alanine, gamma-aminobutyric acid, choline, glucose, glycine and tyrosine) that are common for three different ethnic and geographic origins (Serbia, Brazil and China) could be a good start point for the setup of a universal NMR serum biomarker set for schizophrenia.
PB  - MDPI AG
T2  - Metabolites
T1  - NMR Metabolomics in Serum Fingerprinting of Schizophrenia Patients in a Serbian Cohort
IS  - 8
VL  - 12
DO  - 10.3390/metabo12080707
UR  - conv_1035
ER  - 
@article{
author = "Simić, Katarina and Todorović, Nina and Trifunović, Snežana and Miladinović, Zoran and Gavrilović, Aleksandra and Jovanović, Silvana and Avramović, Nataša and Gođevac, Dejan and Vujisić, Ljubodrag and Tešević, Vele and Tasić, Ljubica and Mandić, Boris",
year = "2022",
abstract = "Schizophrenia is a widespread mental disorder that leads to significant functional impairments and premature death. The state of the art indicates gaps in the understanding and diagnosis of this disease, but also the need for personalized and precise approaches to patients through customized medical treatment and reliable monitoring of treatment response. In order to fulfill existing gaps, the establishment of a universal set of disorder biomarkers is a necessary step. Metabolomic investigations of serum samples of Serbian patients with schizophrenia (51) and healthy controls (39), based on NMR analyses associated with chemometrics, led to the identification of 26 metabolites/biomarkers for this disorder. Principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) models with prediction accuracies of 0.9718 and higher were accomplished during chemometric analysis. The established biomarker set includes aspartate/aspartic acid, lysine, 2-hydroxybutyric acid, and acylglycerols, which are identified for the first time in schizophrenia serum samples by NMR experiments. The other 22 identified metabolites in the Serbian samples are in accordance with the previously established NMR-based serum biomarker sets of Brazilian and/or Chinese patient samples. Thirteen metabolites (lactate/lactic acid, threonine, leucine, isoleucine, valine, glutamine, asparagine, alanine, gamma-aminobutyric acid, choline, glucose, glycine and tyrosine) that are common for three different ethnic and geographic origins (Serbia, Brazil and China) could be a good start point for the setup of a universal NMR serum biomarker set for schizophrenia.",
publisher = "MDPI AG",
journal = "Metabolites",
title = "NMR Metabolomics in Serum Fingerprinting of Schizophrenia Patients in a Serbian Cohort",
number = "8",
volume = "12",
doi = "10.3390/metabo12080707",
url = "conv_1035"
}
Simić, K., Todorović, N., Trifunović, S., Miladinović, Z., Gavrilović, A., Jovanović, S., Avramović, N., Gođevac, D., Vujisić, L., Tešević, V., Tasić, L.,& Mandić, B.. (2022). NMR Metabolomics in Serum Fingerprinting of Schizophrenia Patients in a Serbian Cohort. in Metabolites
MDPI AG., 12(8).
https://doi.org/10.3390/metabo12080707
conv_1035
Simić K, Todorović N, Trifunović S, Miladinović Z, Gavrilović A, Jovanović S, Avramović N, Gođevac D, Vujisić L, Tešević V, Tasić L, Mandić B. NMR Metabolomics in Serum Fingerprinting of Schizophrenia Patients in a Serbian Cohort. in Metabolites. 2022;12(8).
doi:10.3390/metabo12080707
conv_1035 .
Simić, Katarina, Todorović, Nina, Trifunović, Snežana, Miladinović, Zoran, Gavrilović, Aleksandra, Jovanović, Silvana, Avramović, Nataša, Gođevac, Dejan, Vujisić, Ljubodrag, Tešević, Vele, Tasić, Ljubica, Mandić, Boris, "NMR Metabolomics in Serum Fingerprinting of Schizophrenia Patients in a Serbian Cohort" in Metabolites, 12, no. 8 (2022),
https://doi.org/10.3390/metabo12080707 .,
conv_1035 .
10
10

Erratum: Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH2PO4+ (1 -y)Na2HPO4}(aq) System atT= 298.15 K (J. Chem. Eng. Data(2020) 65:11 (5137−5153) DOI: 10.1021/acs.jced.0c00281)

Ivanović, Tijana; Popović, Daniela Z.; Miladinović, J.; v; Miladinović, Zoran; Pastor, Ferenc T.

(American Chemical Society, 2021)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z.
AU  - Miladinović, J.
AU  - v
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc T.
PY  - 2021
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/858
AB  - was given incorrectly. The correct form of this equation is (Formula Presented)The correct equation was used to calculate the recommended values of Table 7; therefore, the recommended values of osmotic and activity coefficients are unchanged.
PB  - American Chemical Society
T2  - Journal of Chemical and Engineering Data
T1  - Erratum: Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH2PO4+ (1 -y)Na2HPO4}(aq) System atT= 298.15 K (J. Chem. Eng. Data(2020) 65:11 (5137−5153) DOI: 10.1021/acs.jced.0c00281)
IS  - 12
SP  - 4751
VL  - 66
DO  - 10.1021/acs.jced.1c00713
UR  - conv_1137
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. and Miladinović, J. and v and Miladinović, Zoran and Pastor, Ferenc T.",
year = "2021",
abstract = "was given incorrectly. The correct form of this equation is (Formula Presented)The correct equation was used to calculate the recommended values of Table 7; therefore, the recommended values of osmotic and activity coefficients are unchanged.",
publisher = "American Chemical Society",
journal = "Journal of Chemical and Engineering Data",
title = "Erratum: Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH2PO4+ (1 -y)Na2HPO4}(aq) System atT= 298.15 K (J. Chem. Eng. Data(2020) 65:11 (5137−5153) DOI: 10.1021/acs.jced.0c00281)",
number = "12",
pages = "4751",
volume = "66",
doi = "10.1021/acs.jced.1c00713",
url = "conv_1137"
}
Ivanović, T., Popović, D. Z., Miladinović, J., v, Miladinović, Z.,& Pastor, F. T.. (2021). Erratum: Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH2PO4+ (1 -y)Na2HPO4}(aq) System atT= 298.15 K (J. Chem. Eng. Data(2020) 65:11 (5137−5153) DOI: 10.1021/acs.jced.0c00281). in Journal of Chemical and Engineering Data
American Chemical Society., 66(12), 4751.
https://doi.org/10.1021/acs.jced.1c00713
conv_1137
Ivanović T, Popović DZ, Miladinović J, v, Miladinović Z, Pastor FT. Erratum: Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH2PO4+ (1 -y)Na2HPO4}(aq) System atT= 298.15 K (J. Chem. Eng. Data(2020) 65:11 (5137−5153) DOI: 10.1021/acs.jced.0c00281). in Journal of Chemical and Engineering Data. 2021;66(12):4751.
doi:10.1021/acs.jced.1c00713
conv_1137 .
Ivanović, Tijana, Popović, Daniela Z., Miladinović, J., v, Miladinović, Zoran, Pastor, Ferenc T., "Erratum: Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH2PO4+ (1 -y)Na2HPO4}(aq) System atT= 298.15 K (J. Chem. Eng. Data(2020) 65:11 (5137−5153) DOI: 10.1021/acs.jced.0c00281)" in Journal of Chemical and Engineering Data, 66, no. 12 (2021):4751,
https://doi.org/10.1021/acs.jced.1c00713 .,
conv_1137 .
1
1

Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH(2)PO(4) + (1-y)Na2HPO4}(aq) System at T=298.15 K

Ivanović, Tijana; Popović, Daniela Z.; Miladinović, Jelena; Rard, Joseph A.; Miladinović, Zoran; Pastor, Ferenc T.

(2020)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Rard, Joseph A.
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc T.
PY  - 2020
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/718
AB  - Isopiestic measurements have been made for aqueous solutions of the common sodium cation mixtures of NaH2PO4 and Na2HPO4 at T = 298.15 +/- 0.01 K, at NaH2PO4 ionic strength fractions y = (0, 0.24851, 0.49862, 0.74544, and 1), where the ionic strength fractions were calculated by assuming complete electrolytic dissociation of NaH2PO4 as 1:1 and Na2HPO4 as 2:1 electrolytes; CaCl2(aq) was used as the reference standard solution. Model parameters for an extended form of Pitzer's ion-interaction model and also for the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale were evaluated at T = 298.15 K for both NaH2PO4(aq) and Na2HPO4(aq) using the isopiestic results from this study (17 values each) together with numerous critically assessed osmotic coefficients for both electrolytes taken from the published literature. The thermodynamic models for NaH2PO4(aq) extend to m = 7.5 mol.kg(-1), whereas those for Na2HPO4(aq) extend to m = 2.6050 mol.kg(-1), which is well above the solubility limit for the thermodynamically stable phase Na2HPO4 center dot 12H(2)O(cr). The 51 osmotic coefficients for the ternary mixtures were treated with these two models together with Scatchard's neutral-electrolyte model; one previous set of osmotic coefficient values for {yNaH(2)PO(4) + (1 - y)Na2HPO4}(aq) mixtures was found in the literature [Scharge, T.; et al. J. Chem. Thermodyn. 2015, 80, 172-183], and hence an analysis and comparison were made of our results with theirs.
T2  - Journal of Chemical and Engineering Data
T1  - Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH(2)PO(4) + (1-y)Na2HPO4}(aq) System at T=298.15 K
EP  - 5153
IS  - 11
SP  - 5137
VL  - 65
DO  - 10.1021/acs.jced.0c00281
UR  - conv_890
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. and Miladinović, Jelena and Rard, Joseph A. and Miladinović, Zoran and Pastor, Ferenc T.",
year = "2020",
abstract = "Isopiestic measurements have been made for aqueous solutions of the common sodium cation mixtures of NaH2PO4 and Na2HPO4 at T = 298.15 +/- 0.01 K, at NaH2PO4 ionic strength fractions y = (0, 0.24851, 0.49862, 0.74544, and 1), where the ionic strength fractions were calculated by assuming complete electrolytic dissociation of NaH2PO4 as 1:1 and Na2HPO4 as 2:1 electrolytes; CaCl2(aq) was used as the reference standard solution. Model parameters for an extended form of Pitzer's ion-interaction model and also for the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale were evaluated at T = 298.15 K for both NaH2PO4(aq) and Na2HPO4(aq) using the isopiestic results from this study (17 values each) together with numerous critically assessed osmotic coefficients for both electrolytes taken from the published literature. The thermodynamic models for NaH2PO4(aq) extend to m = 7.5 mol.kg(-1), whereas those for Na2HPO4(aq) extend to m = 2.6050 mol.kg(-1), which is well above the solubility limit for the thermodynamically stable phase Na2HPO4 center dot 12H(2)O(cr). The 51 osmotic coefficients for the ternary mixtures were treated with these two models together with Scatchard's neutral-electrolyte model; one previous set of osmotic coefficient values for {yNaH(2)PO(4) + (1 - y)Na2HPO4}(aq) mixtures was found in the literature [Scharge, T.; et al. J. Chem. Thermodyn. 2015, 80, 172-183], and hence an analysis and comparison were made of our results with theirs.",
journal = "Journal of Chemical and Engineering Data",
title = "Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH(2)PO(4) + (1-y)Na2HPO4}(aq) System at T=298.15 K",
pages = "5153-5137",
number = "11",
volume = "65",
doi = "10.1021/acs.jced.0c00281",
url = "conv_890"
}
Ivanović, T., Popović, D. Z., Miladinović, J., Rard, J. A., Miladinović, Z.,& Pastor, F. T.. (2020). Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH(2)PO(4) + (1-y)Na2HPO4}(aq) System at T=298.15 K. in Journal of Chemical and Engineering Data, 65(11), 5137-5153.
https://doi.org/10.1021/acs.jced.0c00281
conv_890
Ivanović T, Popović DZ, Miladinović J, Rard JA, Miladinović Z, Pastor FT. Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH(2)PO(4) + (1-y)Na2HPO4}(aq) System at T=298.15 K. in Journal of Chemical and Engineering Data. 2020;65(11):5137-5153.
doi:10.1021/acs.jced.0c00281
conv_890 .
Ivanović, Tijana, Popović, Daniela Z., Miladinović, Jelena, Rard, Joseph A., Miladinović, Zoran, Pastor, Ferenc T., "Isopiestic Determination of Osmotic and Activity Coefficients of the {yNaH(2)PO(4) + (1-y)Na2HPO4}(aq) System at T=298.15 K" in Journal of Chemical and Engineering Data, 65, no. 11 (2020):5137-5153,
https://doi.org/10.1021/acs.jced.0c00281 .,
conv_890 .
6
1
5

Isopiestic determination of the osmotic and activity coefficients of {yK(2)HPO(4) + (1-y)KH2PO4}(aq) at T=298.15 K

Ivanović, Tijana; Popović, Daniela Z.; Miladinović, Jelena; Rard, Joseph A.; Miladinović, Zoran; Pastor, Ferenc T.

(Academic Press Ltd- Elsevier Science Ltd, London, 2020)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Rard, Joseph A.
AU  - Miladinović, Zoran
AU  - Pastor, Ferenc T.
PY  - 2020
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/746
AB  - Isopiestic measurements have been made at 55 compositions of the {yK(2)HPO(4) + (1 - y)KH2PO4}(aq) system at T = (298.15 +/- 0.01) K, 11 for each of the limiting binary solutions and 33 for mixture compositions at K2HPO4 stoichiometric ionic strength fractions y = (0.23330, 0.47671, and 0.73177), using KCl(aq) as the reference standard. Model parameters for the binary subsystems were evaluated at this temperature for an extended form of Pitzer's ion-interaction model and also for the Clegg, Pitzer and Brimblecombe model based on the mole-fraction-composition scale, using the present isopiestic results along with critically-assessed osmotic coefficients for both of these aqueous electrolytes as extracted from the published literature. The thermodynamic models for KH2PO4(aq) extend to slightly above the saturated solution molality at T = (298.15 +/- 0.01) K, whereas those for K2HPO4(aq) extend to m = 9.7429 mol.kg(-1), which is the molality of the saturated solution, also at T = (298.15 +/- 0.01) K. These results yield the CODATA-compatible standard Gibbs energy of formation Delta(f)G(m)(o)(K2HPO4 center dot 3H(2)O; cr; 298.15 K) = -(2367.70 +/- 1.60) kJ.mol(-1). The 33 osmotic coefficients for the ternary mixtures were likewise represented with these models, using both the usual Pitzer mixing terms and also Scatchard's neutral-electrolyte model mixing terms for the extended ion-interaction model. Two mixing parameters are needed for each of the three models for {yK(2)HPO(4) + (1 - y)KH2PO4}(aq), and both of these ion-interaction models give similar high-quality representations of the experimental results. However, the Clegg, Pitzer and Brimblecombe model had more difficulty in representing the osmotic coefficients of K2HPO4(aq), especially below 3 mol.kg(-1), and consequently the corresponding mixture model with two mixing parameters is slightly less accurate for representing the osmotic coefficients. The maximum difference in calculated values of the mean molality-based activity coefficients for the two recommended extended Pitzer models with the different types of mixing terms are 0.0061 for the trace activity coefficient of K2HPO4(aq) in KH2PO4(aq) but with much better agreement at most mixture compositions.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Chemical Thermodynamics
T1  - Isopiestic determination of the osmotic and activity coefficients of {yK(2)HPO(4) + (1-y)KH2PO4}(aq) at T=298.15 K
VL  - 142
DO  - 10.1016/j.jct.2019.105945
UR  - conv_821
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. and Miladinović, Jelena and Rard, Joseph A. and Miladinović, Zoran and Pastor, Ferenc T.",
year = "2020",
abstract = "Isopiestic measurements have been made at 55 compositions of the {yK(2)HPO(4) + (1 - y)KH2PO4}(aq) system at T = (298.15 +/- 0.01) K, 11 for each of the limiting binary solutions and 33 for mixture compositions at K2HPO4 stoichiometric ionic strength fractions y = (0.23330, 0.47671, and 0.73177), using KCl(aq) as the reference standard. Model parameters for the binary subsystems were evaluated at this temperature for an extended form of Pitzer's ion-interaction model and also for the Clegg, Pitzer and Brimblecombe model based on the mole-fraction-composition scale, using the present isopiestic results along with critically-assessed osmotic coefficients for both of these aqueous electrolytes as extracted from the published literature. The thermodynamic models for KH2PO4(aq) extend to slightly above the saturated solution molality at T = (298.15 +/- 0.01) K, whereas those for K2HPO4(aq) extend to m = 9.7429 mol.kg(-1), which is the molality of the saturated solution, also at T = (298.15 +/- 0.01) K. These results yield the CODATA-compatible standard Gibbs energy of formation Delta(f)G(m)(o)(K2HPO4 center dot 3H(2)O; cr; 298.15 K) = -(2367.70 +/- 1.60) kJ.mol(-1). The 33 osmotic coefficients for the ternary mixtures were likewise represented with these models, using both the usual Pitzer mixing terms and also Scatchard's neutral-electrolyte model mixing terms for the extended ion-interaction model. Two mixing parameters are needed for each of the three models for {yK(2)HPO(4) + (1 - y)KH2PO4}(aq), and both of these ion-interaction models give similar high-quality representations of the experimental results. However, the Clegg, Pitzer and Brimblecombe model had more difficulty in representing the osmotic coefficients of K2HPO4(aq), especially below 3 mol.kg(-1), and consequently the corresponding mixture model with two mixing parameters is slightly less accurate for representing the osmotic coefficients. The maximum difference in calculated values of the mean molality-based activity coefficients for the two recommended extended Pitzer models with the different types of mixing terms are 0.0061 for the trace activity coefficient of K2HPO4(aq) in KH2PO4(aq) but with much better agreement at most mixture compositions.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Chemical Thermodynamics",
title = "Isopiestic determination of the osmotic and activity coefficients of {yK(2)HPO(4) + (1-y)KH2PO4}(aq) at T=298.15 K",
volume = "142",
doi = "10.1016/j.jct.2019.105945",
url = "conv_821"
}
Ivanović, T., Popović, D. Z., Miladinović, J., Rard, J. A., Miladinović, Z.,& Pastor, F. T.. (2020). Isopiestic determination of the osmotic and activity coefficients of {yK(2)HPO(4) + (1-y)KH2PO4}(aq) at T=298.15 K. in Journal of Chemical Thermodynamics
Academic Press Ltd- Elsevier Science Ltd, London., 142.
https://doi.org/10.1016/j.jct.2019.105945
conv_821
Ivanović T, Popović DZ, Miladinović J, Rard JA, Miladinović Z, Pastor FT. Isopiestic determination of the osmotic and activity coefficients of {yK(2)HPO(4) + (1-y)KH2PO4}(aq) at T=298.15 K. in Journal of Chemical Thermodynamics. 2020;142.
doi:10.1016/j.jct.2019.105945
conv_821 .
Ivanović, Tijana, Popović, Daniela Z., Miladinović, Jelena, Rard, Joseph A., Miladinović, Zoran, Pastor, Ferenc T., "Isopiestic determination of the osmotic and activity coefficients of {yK(2)HPO(4) + (1-y)KH2PO4}(aq) at T=298.15 K" in Journal of Chemical Thermodynamics, 142 (2020),
https://doi.org/10.1016/j.jct.2019.105945 .,
conv_821 .
6
1
7

Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K

Ivanović, Tijana; Popović, Daniela Z.; Miladinović, Jelena; Rard, Joseph A.; Miladinović, Zoran; Belosević, Svetlana; Trivunac, Katarina

(Springer/Plenum Publishers, New York, 2019)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Rard, Joseph A.
AU  - Miladinović, Zoran
AU  - Belosević, Svetlana
AU  - Trivunac, Katarina
PY  - 2019
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/692
AB  - Isopiestic measurements have been made for aqueous mixtures of NaH2PO4 and KH2PO4 at T=(298.15 +/- 0.01) K, at NaH2PO4 ionic strength fractions y=(0, 0.19108, 0.38306, 0.58192, and 1), assuming that both electrolytes dissociate as 1:1 electrolytes, using KCl(aq) as the reference standard solution. Model parameters for an extended form of Pitzer's ion-interaction model and also for the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale were evaluated at T=298.15K for NaH2PO4(aq) using the present isopiestic results (13 values), as were those for KH2PO4(aq) using the present isopiestic results (12 values), together with numerous critically-assessed osmotic coefficients for both electrolytes taken from the published literature. The thermodynamic models for KH2PO4(aq) extend to m=2.187molkg(-1), which is slightly above saturation, while those for NaH2PO4(aq) extend to m=7.5molkg(-1), which is below saturation. The 39 osmotic coefficients for the ternary mixtures from the present study along with 42 values from a published study were likewise represented with these models, with both the usual Pitzer mixing terms and also Scatchard's neutral-electrolyte model mixing terms being used for the extended ion-interaction model. Two mixing parameters were needed for each of the models, and all three models gave similar quality representations of the experimental results. Maximum differences in calculated values of mean molality-based activity coefficients for these three models are (+/-)(NaH2PO4)0.0080 and (+/-)(KH2PO4)0.0043. The experimental results were also found to nearly conform to Zdanovskii's rule.
PB  - Springer/Plenum Publishers, New York
T2  - Journal of Solution Chemistry
T1  - Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K
EP  - 328
IS  - 3
SP  - 296
VL  - 48
DO  - 10.1007/s10953-018-0839-4
UR  - conv_769
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. and Miladinović, Jelena and Rard, Joseph A. and Miladinović, Zoran and Belosević, Svetlana and Trivunac, Katarina",
year = "2019",
abstract = "Isopiestic measurements have been made for aqueous mixtures of NaH2PO4 and KH2PO4 at T=(298.15 +/- 0.01) K, at NaH2PO4 ionic strength fractions y=(0, 0.19108, 0.38306, 0.58192, and 1), assuming that both electrolytes dissociate as 1:1 electrolytes, using KCl(aq) as the reference standard solution. Model parameters for an extended form of Pitzer's ion-interaction model and also for the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale were evaluated at T=298.15K for NaH2PO4(aq) using the present isopiestic results (13 values), as were those for KH2PO4(aq) using the present isopiestic results (12 values), together with numerous critically-assessed osmotic coefficients for both electrolytes taken from the published literature. The thermodynamic models for KH2PO4(aq) extend to m=2.187molkg(-1), which is slightly above saturation, while those for NaH2PO4(aq) extend to m=7.5molkg(-1), which is below saturation. The 39 osmotic coefficients for the ternary mixtures from the present study along with 42 values from a published study were likewise represented with these models, with both the usual Pitzer mixing terms and also Scatchard's neutral-electrolyte model mixing terms being used for the extended ion-interaction model. Two mixing parameters were needed for each of the models, and all three models gave similar quality representations of the experimental results. Maximum differences in calculated values of mean molality-based activity coefficients for these three models are (+/-)(NaH2PO4)0.0080 and (+/-)(KH2PO4)0.0043. The experimental results were also found to nearly conform to Zdanovskii's rule.",
publisher = "Springer/Plenum Publishers, New York",
journal = "Journal of Solution Chemistry",
title = "Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K",
pages = "328-296",
number = "3",
volume = "48",
doi = "10.1007/s10953-018-0839-4",
url = "conv_769"
}
Ivanović, T., Popović, D. Z., Miladinović, J., Rard, J. A., Miladinović, Z., Belosević, S.,& Trivunac, K.. (2019). Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K. in Journal of Solution Chemistry
Springer/Plenum Publishers, New York., 48(3), 296-328.
https://doi.org/10.1007/s10953-018-0839-4
conv_769
Ivanović T, Popović DZ, Miladinović J, Rard JA, Miladinović Z, Belosević S, Trivunac K. Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K. in Journal of Solution Chemistry. 2019;48(3):296-328.
doi:10.1007/s10953-018-0839-4
conv_769 .
Ivanović, Tijana, Popović, Daniela Z., Miladinović, Jelena, Rard, Joseph A., Miladinović, Zoran, Belosević, Svetlana, Trivunac, Katarina, "Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNaH(2)PO(4)+(1-y)KH2PO4}(aq) System at T=298.15K" in Journal of Solution Chemistry, 48, no. 3 (2019):296-328,
https://doi.org/10.1007/s10953-018-0839-4 .,
conv_769 .
8
3
8

The influence of Pb addition on the properties of fly ash-based geopolymers

Nikolić, Violeta; Komljenović, Miroslav; Dzunuzović, Nataša; Miladinović, Zoran

(Elsevier B.V., 2018)

TY  - JOUR
AU  - Nikolić, Violeta
AU  - Komljenović, Miroslav
AU  - Dzunuzović, Nataša
AU  - Miladinović, Zoran
PY  - 2018
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/586
AB  - Preventing or reducing negative effects on the environment from the waste landfilling is the main goal defined by the European Landfill Directive. Generally geopolymers can be considered as sustainable binders for immobilization of hazardous wastes containing different toxic elements. In this paper the influence of addition of high amount of lead on structure, strength, and leaching behavior (the effectiveness of Pb immobilization) of fly ash-based geopolymers depending on the geopolymer curing conditions was investigated. Lead was added during the synthesis of geopolymers in the form of highly soluble salt - lead-nitrate. Structural changes of geopolymers as a result of lead addition/immobilization were assessed by means of XRD, SEM/EDS, and Si-29 MAS NMR analysis. Investigated curing conditions significantly influenced structure, strength and leaching behavior of geopolymers. High addition of lead caused a sizeable decrease in compressive strength of geopolymers and promoted formation of aluminum-deficient aluminosilicate gel (de polymerization of aluminosilicate gel), regardless of the curing conditions investigated. According to the EUWAC limitations, 4% of lead was successfully immobilized by fly ash-based geopolymers cured for 28 days in a humid chamber at room temperature.
PB  - Elsevier B.V.
T2  - Journal of Hazardous Materials
T1  - The influence of Pb addition on the properties of fly ash-based geopolymers
EP  - 107
SP  - 98
VL  - 350
DO  - 10.1016/j.jhazmat.2018.02.023
UR  - conv_1190
ER  - 
@article{
author = "Nikolić, Violeta and Komljenović, Miroslav and Dzunuzović, Nataša and Miladinović, Zoran",
year = "2018",
abstract = "Preventing or reducing negative effects on the environment from the waste landfilling is the main goal defined by the European Landfill Directive. Generally geopolymers can be considered as sustainable binders for immobilization of hazardous wastes containing different toxic elements. In this paper the influence of addition of high amount of lead on structure, strength, and leaching behavior (the effectiveness of Pb immobilization) of fly ash-based geopolymers depending on the geopolymer curing conditions was investigated. Lead was added during the synthesis of geopolymers in the form of highly soluble salt - lead-nitrate. Structural changes of geopolymers as a result of lead addition/immobilization were assessed by means of XRD, SEM/EDS, and Si-29 MAS NMR analysis. Investigated curing conditions significantly influenced structure, strength and leaching behavior of geopolymers. High addition of lead caused a sizeable decrease in compressive strength of geopolymers and promoted formation of aluminum-deficient aluminosilicate gel (de polymerization of aluminosilicate gel), regardless of the curing conditions investigated. According to the EUWAC limitations, 4% of lead was successfully immobilized by fly ash-based geopolymers cured for 28 days in a humid chamber at room temperature.",
publisher = "Elsevier B.V.",
journal = "Journal of Hazardous Materials",
title = "The influence of Pb addition on the properties of fly ash-based geopolymers",
pages = "107-98",
volume = "350",
doi = "10.1016/j.jhazmat.2018.02.023",
url = "conv_1190"
}
Nikolić, V., Komljenović, M., Dzunuzović, N.,& Miladinović, Z.. (2018). The influence of Pb addition on the properties of fly ash-based geopolymers. in Journal of Hazardous Materials
Elsevier B.V.., 350, 98-107.
https://doi.org/10.1016/j.jhazmat.2018.02.023
conv_1190
Nikolić V, Komljenović M, Dzunuzović N, Miladinović Z. The influence of Pb addition on the properties of fly ash-based geopolymers. in Journal of Hazardous Materials. 2018;350:98-107.
doi:10.1016/j.jhazmat.2018.02.023
conv_1190 .
Nikolić, Violeta, Komljenović, Miroslav, Dzunuzović, Nataša, Miladinović, Zoran, "The influence of Pb addition on the properties of fly ash-based geopolymers" in Journal of Hazardous Materials, 350 (2018):98-107,
https://doi.org/10.1016/j.jhazmat.2018.02.023 .,
conv_1190 .
55
4
58

Isopiestic determination of the osmotic and activity coefficients of the {yMg(NO3)(2) + (1-y)MgSO4}(aq) system at T=298.15 K

Ivanović, Tijana; Popović, Daniela Z.; Rard, Joseph A.; Grujić, Snežana; Miladinović, Zoran; Miladinović, Jelena

(Academic Press Ltd- Elsevier Science Ltd, London, 2017)

TY  - JOUR
AU  - Ivanović, Tijana
AU  - Popović, Daniela Z.
AU  - Rard, Joseph A.
AU  - Grujić, Snežana
AU  - Miladinović, Zoran
AU  - Miladinović, Jelena
PY  - 2017
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/559
AB  - Isopiestic (vapor pressure) measurements were made for aqueous mixtures of Mg(NO3)(2) and MgSO4 at T = (298.15 +/- 0.01) K with Mg(NO3)(2) ionic strength fractions y = (0.19691, 0.42542, 0.60113, 0.79583, and 1), along with a separate series of measurements for MgSO4(aq), y = 0, all using KCl(aq) as the reference standard. The resulting 44 molality-based osmotic coefficients for the ternary mixtures, ionic strength range I-m = (2.5924-8.4583) mol-kg(-1), were modeled with an extended form of Pitzer's ion interaction model, both with the usual Pitzer mixing terms and also with Scatchard's neutral electrolyte model mixing terms, and also with the Clegg-Pitzer-Brimblecombe model based on the mole-fraction-composition scale. The molality-based osmotic coefficients phi of these mixtures at each fixed ionic strength fraction fall in a regular order between those of the corresponding limiting binary solutions with no crossovers in this ionic strength range. Model parameters for Mg(NO3)(2)(aq) and MgSO4(aq) at T = 298.15 K needed for these calculations were evaluated by using the present isopiestic results along with other sets of reliable osmotic coefficients gleaned from the published literature. Our osmotic coefficients for the ternary system are compared with those from a previous isopiestic study and a hygrometric study and the present results were judged to be more accurate. For this ternary system, both mixing parameters are needed for the extended Pitzer model with Pitzer mixing terms {standard uncertainty of fit u(phi)= 7.0 x 10(-3)} whereas three parameters gave a significantly better fit when the Scatchard mixing terms are used {standard uncertainty of fit u(phi) = 4.0 x 10(-3); the fits with two Scatchard mixing parameters did slightly better than the fit with both Pitzer mixing terms}, as did the Clegg-Pitzer-Brimblecombe model with three mixing parameters {standard uncertainty of fit u(phi) = 5.9 x 10(-3)}, with use of the three Scatchard mixing parameters giving the most precise representation of the experimental results. Including higher-order electrostatic mixing terms did not improve the representations but had the opposite effect.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Chemical Thermodynamics
T1  - Isopiestic determination of the osmotic and activity coefficients of the {yMg(NO3)(2) + (1-y)MgSO4}(aq) system at T=298.15 K
EP  - 103
SP  - 91
VL  - 113
DO  - 10.1016/j.jct.2017.05.006
UR  - conv_673
ER  - 
@article{
author = "Ivanović, Tijana and Popović, Daniela Z. and Rard, Joseph A. and Grujić, Snežana and Miladinović, Zoran and Miladinović, Jelena",
year = "2017",
abstract = "Isopiestic (vapor pressure) measurements were made for aqueous mixtures of Mg(NO3)(2) and MgSO4 at T = (298.15 +/- 0.01) K with Mg(NO3)(2) ionic strength fractions y = (0.19691, 0.42542, 0.60113, 0.79583, and 1), along with a separate series of measurements for MgSO4(aq), y = 0, all using KCl(aq) as the reference standard. The resulting 44 molality-based osmotic coefficients for the ternary mixtures, ionic strength range I-m = (2.5924-8.4583) mol-kg(-1), were modeled with an extended form of Pitzer's ion interaction model, both with the usual Pitzer mixing terms and also with Scatchard's neutral electrolyte model mixing terms, and also with the Clegg-Pitzer-Brimblecombe model based on the mole-fraction-composition scale. The molality-based osmotic coefficients phi of these mixtures at each fixed ionic strength fraction fall in a regular order between those of the corresponding limiting binary solutions with no crossovers in this ionic strength range. Model parameters for Mg(NO3)(2)(aq) and MgSO4(aq) at T = 298.15 K needed for these calculations were evaluated by using the present isopiestic results along with other sets of reliable osmotic coefficients gleaned from the published literature. Our osmotic coefficients for the ternary system are compared with those from a previous isopiestic study and a hygrometric study and the present results were judged to be more accurate. For this ternary system, both mixing parameters are needed for the extended Pitzer model with Pitzer mixing terms {standard uncertainty of fit u(phi)= 7.0 x 10(-3)} whereas three parameters gave a significantly better fit when the Scatchard mixing terms are used {standard uncertainty of fit u(phi) = 4.0 x 10(-3); the fits with two Scatchard mixing parameters did slightly better than the fit with both Pitzer mixing terms}, as did the Clegg-Pitzer-Brimblecombe model with three mixing parameters {standard uncertainty of fit u(phi) = 5.9 x 10(-3)}, with use of the three Scatchard mixing parameters giving the most precise representation of the experimental results. Including higher-order electrostatic mixing terms did not improve the representations but had the opposite effect.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Chemical Thermodynamics",
title = "Isopiestic determination of the osmotic and activity coefficients of the {yMg(NO3)(2) + (1-y)MgSO4}(aq) system at T=298.15 K",
pages = "103-91",
volume = "113",
doi = "10.1016/j.jct.2017.05.006",
url = "conv_673"
}
Ivanović, T., Popović, D. Z., Rard, J. A., Grujić, S., Miladinović, Z.,& Miladinović, J.. (2017). Isopiestic determination of the osmotic and activity coefficients of the {yMg(NO3)(2) + (1-y)MgSO4}(aq) system at T=298.15 K. in Journal of Chemical Thermodynamics
Academic Press Ltd- Elsevier Science Ltd, London., 113, 91-103.
https://doi.org/10.1016/j.jct.2017.05.006
conv_673
Ivanović T, Popović DZ, Rard JA, Grujić S, Miladinović Z, Miladinović J. Isopiestic determination of the osmotic and activity coefficients of the {yMg(NO3)(2) + (1-y)MgSO4}(aq) system at T=298.15 K. in Journal of Chemical Thermodynamics. 2017;113:91-103.
doi:10.1016/j.jct.2017.05.006
conv_673 .
Ivanović, Tijana, Popović, Daniela Z., Rard, Joseph A., Grujić, Snežana, Miladinović, Zoran, Miladinović, Jelena, "Isopiestic determination of the osmotic and activity coefficients of the {yMg(NO3)(2) + (1-y)MgSO4}(aq) system at T=298.15 K" in Journal of Chemical Thermodynamics, 113 (2017):91-103,
https://doi.org/10.1016/j.jct.2017.05.006 .,
conv_673 .
3
2
3

Immobilization of hexavalent chromium by fly ash-based geopolymers

Nikolić, Violeta; Komljenović, Miroslav; Dzunuzović, Nataša; Ivanović, Tijana; Miladinović, Zoran

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Nikolić, Violeta
AU  - Komljenović, Miroslav
AU  - Dzunuzović, Nataša
AU  - Ivanović, Tijana
AU  - Miladinović, Zoran
PY  - 2017
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/544
AB  - In this paper the immobilization of hexavalent chromium (Cr (VI)) by fly ash (FA)-based geopolymers was investigated, depending on FA characteristics, mechanical activation of FA, geopolymer synthesis conditions and concentration of Cr added. The effectiveness of Cr immobilization was determined via investigation of geopolymer compressive strength and Cr leaching. Structural changes of geopolymers during the Cr immobilization were assessed by means of gas adsorption, XRD, and NMR analysis. FA reactivity was a key factor determining both physical-mechanical and immobilizing properties of geopolymers. Mechanical activation of FA caused an increase of both geopolymer strength and effectiveness of Cr immobilization. The presence of Cr induced physical-mechanical and structural changes in geopolymers. The correlation between concentration of Cr leached and geopolymer physical-mechanical and structural parameters was established.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Immobilization of hexavalent chromium by fly ash-based geopolymers
EP  - 223
SP  - 213
VL  - 112
DO  - 10.1016/j.compositesb.2016.12.024
UR  - conv_655
ER  - 
@article{
author = "Nikolić, Violeta and Komljenović, Miroslav and Dzunuzović, Nataša and Ivanović, Tijana and Miladinović, Zoran",
year = "2017",
abstract = "In this paper the immobilization of hexavalent chromium (Cr (VI)) by fly ash (FA)-based geopolymers was investigated, depending on FA characteristics, mechanical activation of FA, geopolymer synthesis conditions and concentration of Cr added. The effectiveness of Cr immobilization was determined via investigation of geopolymer compressive strength and Cr leaching. Structural changes of geopolymers during the Cr immobilization were assessed by means of gas adsorption, XRD, and NMR analysis. FA reactivity was a key factor determining both physical-mechanical and immobilizing properties of geopolymers. Mechanical activation of FA caused an increase of both geopolymer strength and effectiveness of Cr immobilization. The presence of Cr induced physical-mechanical and structural changes in geopolymers. The correlation between concentration of Cr leached and geopolymer physical-mechanical and structural parameters was established.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Immobilization of hexavalent chromium by fly ash-based geopolymers",
pages = "223-213",
volume = "112",
doi = "10.1016/j.compositesb.2016.12.024",
url = "conv_655"
}
Nikolić, V., Komljenović, M., Dzunuzović, N., Ivanović, T.,& Miladinović, Z.. (2017). Immobilization of hexavalent chromium by fly ash-based geopolymers. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 112, 213-223.
https://doi.org/10.1016/j.compositesb.2016.12.024
conv_655
Nikolić V, Komljenović M, Dzunuzović N, Ivanović T, Miladinović Z. Immobilization of hexavalent chromium by fly ash-based geopolymers. in Composites Part B-Engineering. 2017;112:213-223.
doi:10.1016/j.compositesb.2016.12.024
conv_655 .
Nikolić, Violeta, Komljenović, Miroslav, Dzunuzović, Nataša, Ivanović, Tijana, Miladinović, Zoran, "Immobilization of hexavalent chromium by fly ash-based geopolymers" in Composites Part B-Engineering, 112 (2017):213-223,
https://doi.org/10.1016/j.compositesb.2016.12.024 .,
conv_655 .
52
13
56

Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNa(2)HPO(4) + (1-y)K2HPO4}(aq) System at T=298.15 K

Popović, Daniela Z.; Miladinović, Jelena; Rard, Joseph A.; Miladinović, Zoran; Grujić, Snežana

(Springer/Plenum Publishers, New York, 2016)

TY  - JOUR
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Rard, Joseph A.
AU  - Miladinović, Zoran
AU  - Grujić, Snežana
PY  - 2016
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/459
AB  - Isopiestic measurements have been made for aqueous mixtures of Na2HPO4 and K2HPO4 at T = (298.15 +/- 0.01) K, at Na2HPO4 ionic strength fractions y = (0.2023, 0.4060, 0.6027, 0.8007, and 1), using KCl(aq) as the reference standard solution. The resulting 48 molality-based osmotic coefficients for the ternary mixtures were modeled with an extended form of Pitzer's ion-interaction model, with the usual Pitzer mixing terms and also with Scatchard's neutral-electrolyte model mixing terms, along with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There are no previously published isopiestic measurements for this ternary system. Model parameters for Na2HPO4(aq) at T = 298.15 K were also evaluated using the present isopiestic results (12 values) along with three other sets of osmotic coefficients from isopiestic measurements taken from the published literature, and all four sets of osmotic coefficients are in good agreement; model parameters for K2HPO4(aq) are already available from our earlier work: (PopoviAc et al. in J Solution Chem 40:907-920, 2011). For this ternary system, only one mixing parameter is needed for each of the three models because the ionic strength dependences of the osmotic coefficients of Na2HPO4(aq) and K2HPO4(aq) are very similar, as expected from their very similar chemistry, with the two variants of the extended Pitzer model giving slightly better representations of the experimental results than the Clegg-Pitzer-Brimblecombe model. Maximum differences in calculated values of mean molality-based activity coefficients for these three models are a dagger gamma (+/-)(Na2HPO4) aecurrency sign0.004 and a dagger gamma (+/-)(K2HPO4) aecurrency sign0.008 for ionic strengths I (m) aecurrency sign 2.0 mol center dot kg(-1), with the largest differences occurring for the trace and near-trace activity coefficients of one solute in a solution of the other solute at higher ionic strengths and solutions rich in K2HPO4 at intermediate ionic strengths. These new results complement our earlier investigations of aqueous common-cation mixtures of K2HPO4 with KCl, KBr, KNO3 and K2SO4.
PB  - Springer/Plenum Publishers, New York
T2  - Journal of Solution Chemistry
T1  - Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNa(2)HPO(4) + (1-y)K2HPO4}(aq) System at T=298.15 K
EP  - 1287
IS  - 9
SP  - 1261
VL  - 45
DO  - 10.1007/s10953-015-0429-7
UR  - conv_626
ER  - 
@article{
author = "Popović, Daniela Z. and Miladinović, Jelena and Rard, Joseph A. and Miladinović, Zoran and Grujić, Snežana",
year = "2016",
abstract = "Isopiestic measurements have been made for aqueous mixtures of Na2HPO4 and K2HPO4 at T = (298.15 +/- 0.01) K, at Na2HPO4 ionic strength fractions y = (0.2023, 0.4060, 0.6027, 0.8007, and 1), using KCl(aq) as the reference standard solution. The resulting 48 molality-based osmotic coefficients for the ternary mixtures were modeled with an extended form of Pitzer's ion-interaction model, with the usual Pitzer mixing terms and also with Scatchard's neutral-electrolyte model mixing terms, along with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There are no previously published isopiestic measurements for this ternary system. Model parameters for Na2HPO4(aq) at T = 298.15 K were also evaluated using the present isopiestic results (12 values) along with three other sets of osmotic coefficients from isopiestic measurements taken from the published literature, and all four sets of osmotic coefficients are in good agreement; model parameters for K2HPO4(aq) are already available from our earlier work: (PopoviAc et al. in J Solution Chem 40:907-920, 2011). For this ternary system, only one mixing parameter is needed for each of the three models because the ionic strength dependences of the osmotic coefficients of Na2HPO4(aq) and K2HPO4(aq) are very similar, as expected from their very similar chemistry, with the two variants of the extended Pitzer model giving slightly better representations of the experimental results than the Clegg-Pitzer-Brimblecombe model. Maximum differences in calculated values of mean molality-based activity coefficients for these three models are a dagger gamma (+/-)(Na2HPO4) aecurrency sign0.004 and a dagger gamma (+/-)(K2HPO4) aecurrency sign0.008 for ionic strengths I (m) aecurrency sign 2.0 mol center dot kg(-1), with the largest differences occurring for the trace and near-trace activity coefficients of one solute in a solution of the other solute at higher ionic strengths and solutions rich in K2HPO4 at intermediate ionic strengths. These new results complement our earlier investigations of aqueous common-cation mixtures of K2HPO4 with KCl, KBr, KNO3 and K2SO4.",
publisher = "Springer/Plenum Publishers, New York",
journal = "Journal of Solution Chemistry",
title = "Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNa(2)HPO(4) + (1-y)K2HPO4}(aq) System at T=298.15 K",
pages = "1287-1261",
number = "9",
volume = "45",
doi = "10.1007/s10953-015-0429-7",
url = "conv_626"
}
Popović, D. Z., Miladinović, J., Rard, J. A., Miladinović, Z.,& Grujić, S.. (2016). Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNa(2)HPO(4) + (1-y)K2HPO4}(aq) System at T=298.15 K. in Journal of Solution Chemistry
Springer/Plenum Publishers, New York., 45(9), 1261-1287.
https://doi.org/10.1007/s10953-015-0429-7
conv_626
Popović DZ, Miladinović J, Rard JA, Miladinović Z, Grujić S. Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNa(2)HPO(4) + (1-y)K2HPO4}(aq) System at T=298.15 K. in Journal of Solution Chemistry. 2016;45(9):1261-1287.
doi:10.1007/s10953-015-0429-7
conv_626 .
Popović, Daniela Z., Miladinović, Jelena, Rard, Joseph A., Miladinović, Zoran, Grujić, Snežana, "Isopiestic Determination of the Osmotic and Activity Coefficients of the {yNa(2)HPO(4) + (1-y)K2HPO4}(aq) System at T=298.15 K" in Journal of Solution Chemistry, 45, no. 9 (2016):1261-1287,
https://doi.org/10.1007/s10953-015-0429-7 .,
conv_626 .
7
4
7

V-51 NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium

Zizić, Milan; Miladinović, Zoran; Stanić, Marina; Hadzibrahimović, Mirzeta; Zivić, Miroslav; Zakrzewska, Joanna

(Elsevier Science Bv, Amsterdam, 2016)

TY  - JOUR
AU  - Zizić, Milan
AU  - Miladinović, Zoran
AU  - Stanić, Marina
AU  - Hadzibrahimović, Mirzeta
AU  - Zivić, Miroslav
AU  - Zakrzewska, Joanna
PY  - 2016
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/467
AB  - V-51 NMR spectroscopy was used for detection and identification of cell-associated vanadate (V5+) species after exposure of Phycomyces blakesleeanus mycelium, in exponential phase of growth, to sodium orthovanadate. Complete disappearance of monomer and dimer signals and decreased intensity of the tetramer signal were observed about 40 min after treatment. Simultaneously, a signal at -532 ppm, with increasing intensity, was detected in spectra. The time-dependent rise in this signal was connected to a decrease in the extracellular monomer signal, indicating its transport into the cell. The signal at -532 ppm did not belong to any known simple oxido-vanadate species, nor to a complex with any of the components of experimental medium. This signal was the only one present in spectrum of the mycelium washed 35 min after treatment, and the only one observed in mycelium cultivated on vanadate-contained medium. Therefore, its appearance can be attributed to intracellular complexation, and may represent an important detoxification mechanism of the cell exposed to a physiologically relevant concentration of vanadate. Experiments (V-51 NMR and polarography) performed with Cd-pretreated mycelium (inhibitor of an enzyme responsible for V5+ reduction) and ferricyanide-preincubated mycelium excluded the possibility of V5+ tetramer's entry into the cell.
PB  - Elsevier Science Bv, Amsterdam
T2  - Research in Microbiology
T1  - V-51 NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium
EP  - 528
IS  - 6
SP  - 521
VL  - 167
DO  - 10.1016/j.resmic.2016.04.012
UR  - conv_623
ER  - 
@article{
author = "Zizić, Milan and Miladinović, Zoran and Stanić, Marina and Hadzibrahimović, Mirzeta and Zivić, Miroslav and Zakrzewska, Joanna",
year = "2016",
abstract = "V-51 NMR spectroscopy was used for detection and identification of cell-associated vanadate (V5+) species after exposure of Phycomyces blakesleeanus mycelium, in exponential phase of growth, to sodium orthovanadate. Complete disappearance of monomer and dimer signals and decreased intensity of the tetramer signal were observed about 40 min after treatment. Simultaneously, a signal at -532 ppm, with increasing intensity, was detected in spectra. The time-dependent rise in this signal was connected to a decrease in the extracellular monomer signal, indicating its transport into the cell. The signal at -532 ppm did not belong to any known simple oxido-vanadate species, nor to a complex with any of the components of experimental medium. This signal was the only one present in spectrum of the mycelium washed 35 min after treatment, and the only one observed in mycelium cultivated on vanadate-contained medium. Therefore, its appearance can be attributed to intracellular complexation, and may represent an important detoxification mechanism of the cell exposed to a physiologically relevant concentration of vanadate. Experiments (V-51 NMR and polarography) performed with Cd-pretreated mycelium (inhibitor of an enzyme responsible for V5+ reduction) and ferricyanide-preincubated mycelium excluded the possibility of V5+ tetramer's entry into the cell.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Research in Microbiology",
title = "V-51 NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium",
pages = "528-521",
number = "6",
volume = "167",
doi = "10.1016/j.resmic.2016.04.012",
url = "conv_623"
}
Zizić, M., Miladinović, Z., Stanić, M., Hadzibrahimović, M., Zivić, M.,& Zakrzewska, J.. (2016). V-51 NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium. in Research in Microbiology
Elsevier Science Bv, Amsterdam., 167(6), 521-528.
https://doi.org/10.1016/j.resmic.2016.04.012
conv_623
Zizić M, Miladinović Z, Stanić M, Hadzibrahimović M, Zivić M, Zakrzewska J. V-51 NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium. in Research in Microbiology. 2016;167(6):521-528.
doi:10.1016/j.resmic.2016.04.012
conv_623 .
Zizić, Milan, Miladinović, Zoran, Stanić, Marina, Hadzibrahimović, Mirzeta, Zivić, Miroslav, Zakrzewska, Joanna, "V-51 NMR investigation of cell-associated vanadate species in Phycomyces blakesleeanus mycelium" in Research in Microbiology, 167, no. 6 (2016):521-528,
https://doi.org/10.1016/j.resmic.2016.04.012 .,
conv_623 .
9
6
8

Addition of Zeolites to Improve the Functional Characteristics of the Hen of the Wood or Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes) `

Vunduk, Jovana; Klaus, Anita; Kozarski, Maja; Đorđević, Radovan; Miladinović, Zoran; Jovanović, Ljubinko; Nikšić, Miomir; van Griensven, Leo

(Begell House Inc, Danbury, 2016)

TY  - JOUR
AU  - Vunduk, Jovana
AU  - Klaus, Anita
AU  - Kozarski, Maja
AU  - Đorđević, Radovan
AU  - Miladinović, Zoran
AU  - Jovanović, Ljubinko
AU  - Nikšić, Miomir
AU  - van Griensven, Leo
PY  - 2016
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/460
AB  - Kaolinite and the modified natural zeolite minazel plus (M+) were used as supplements in substrate used for the production of the medicinal mushroom Grifola frondosa. Growth stimulation, expressed as yield and biological efficiency, was observed when M+ (1%) was added. The production cycle was shortened by half as a result of the zeolites' ion-exchange ability, stimulation of enzyme activity, and water retain capacity. Inductively coupled plasma optical emission spectrometry of fruiting bodies showed the absence of heavy metals (arsenic, cadmium, and lead), whereas the concentration of calcium increased greatly and the concentrations of iron, magnesium, and zinc increased moderately under the influence of M+. Solid-state nuclear magnetic resonance showed a positive impact on the beta-glucanratio, which could have been caused by the epimerization reaction stimulated by zeolites. The functionality of the mushroom was evaluated through several antioxidant activity assays, and in all cases a positive effect was established: M+ was statistically more effective in comparison with kaolinite. A strong correlation was established between the antioxidative activity of cultivated fruiting bodies and the tested compounds (total phenolic compounds, carbohydrates, and minerals).
PB  - Begell House Inc, Danbury
T2  - International Journal of Medicinal Mushrooms
T1  - Addition of Zeolites to Improve the Functional Characteristics of the Hen of the Wood or Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes) `
EP  - 792
IS  - 9
SP  - 781
VL  - 18
DO  - 10.1615/IntJMedMushrooms.v18.i9.30
UR  - conv_634
ER  - 
@article{
author = "Vunduk, Jovana and Klaus, Anita and Kozarski, Maja and Đorđević, Radovan and Miladinović, Zoran and Jovanović, Ljubinko and Nikšić, Miomir and van Griensven, Leo",
year = "2016",
abstract = "Kaolinite and the modified natural zeolite minazel plus (M+) were used as supplements in substrate used for the production of the medicinal mushroom Grifola frondosa. Growth stimulation, expressed as yield and biological efficiency, was observed when M+ (1%) was added. The production cycle was shortened by half as a result of the zeolites' ion-exchange ability, stimulation of enzyme activity, and water retain capacity. Inductively coupled plasma optical emission spectrometry of fruiting bodies showed the absence of heavy metals (arsenic, cadmium, and lead), whereas the concentration of calcium increased greatly and the concentrations of iron, magnesium, and zinc increased moderately under the influence of M+. Solid-state nuclear magnetic resonance showed a positive impact on the beta-glucanratio, which could have been caused by the epimerization reaction stimulated by zeolites. The functionality of the mushroom was evaluated through several antioxidant activity assays, and in all cases a positive effect was established: M+ was statistically more effective in comparison with kaolinite. A strong correlation was established between the antioxidative activity of cultivated fruiting bodies and the tested compounds (total phenolic compounds, carbohydrates, and minerals).",
publisher = "Begell House Inc, Danbury",
journal = "International Journal of Medicinal Mushrooms",
title = "Addition of Zeolites to Improve the Functional Characteristics of the Hen of the Wood or Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes) `",
pages = "792-781",
number = "9",
volume = "18",
doi = "10.1615/IntJMedMushrooms.v18.i9.30",
url = "conv_634"
}
Vunduk, J., Klaus, A., Kozarski, M., Đorđević, R., Miladinović, Z., Jovanović, L., Nikšić, M.,& van Griensven, L.. (2016). Addition of Zeolites to Improve the Functional Characteristics of the Hen of the Wood or Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes) `. in International Journal of Medicinal Mushrooms
Begell House Inc, Danbury., 18(9), 781-792.
https://doi.org/10.1615/IntJMedMushrooms.v18.i9.30
conv_634
Vunduk J, Klaus A, Kozarski M, Đorđević R, Miladinović Z, Jovanović L, Nikšić M, van Griensven L. Addition of Zeolites to Improve the Functional Characteristics of the Hen of the Wood or Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes) `. in International Journal of Medicinal Mushrooms. 2016;18(9):781-792.
doi:10.1615/IntJMedMushrooms.v18.i9.30
conv_634 .
Vunduk, Jovana, Klaus, Anita, Kozarski, Maja, Đorđević, Radovan, Miladinović, Zoran, Jovanović, Ljubinko, Nikšić, Miomir, van Griensven, Leo, "Addition of Zeolites to Improve the Functional Characteristics of the Hen of the Wood or Maitake Medicinal Mushroom, Grifola frondosa (Agaricomycetes) `" in International Journal of Medicinal Mushrooms, 18, no. 9 (2016):781-792,
https://doi.org/10.1615/IntJMedMushrooms.v18.i9.30 .,
conv_634 .
3
1
3

Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers

Stefanović, Ivan S.; Ekmescić, Bojana M.; Maksin, Danijela D.; Nastasović, Aleksandra B.; Miladinović, Zoran; Vuković, Zorica M.; Micić, Darko; Pergal, Marija V.

(2015)

TY  - JOUR
AU  - Stefanović, Ivan S.
AU  - Ekmescić, Bojana M.
AU  - Maksin, Danijela D.
AU  - Nastasović, Aleksandra B.
AU  - Miladinović, Zoran
AU  - Vuković, Zorica M.
AU  - Micić, Darko
AU  - Pergal, Marija V.
PY  - 2015
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/433
AB  - Novel macroporous functionalized copolymers with different cross-linker concentrations and porosity parameters were synthesized by reaction of the pendant epoxy groups of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) with hexamethylene diamine 1,3-bis(3-aminopropyl)tetramethyldisiloxane, and alpha,omega-diaminopropyl poly(dimethylsiloxane). The copolymers were prepared in forms, of spherical beads and characterized by Fourier transform infrared (FTIR); C-13 and Si-29 solid-state NMR, mercury porosimetry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Copolymers prepared with the higher cross-linker concentrations have better thermal stability, higher glass transition temperatures; higher specific surface areas, and smaller pore diameters that correspond to half Of the pore volumes. Out results show that functionalization significantly changed porosity parameters, mechanism of thermal degradation; and increased thermal, stability in comparison with the initial copolymers. These macroporous copolymers could potentially have many applications, i.e. for sorption of heavy and precious metals or as Material for gas chromatography columns.
T2  - Industrial & Engineering Chemistry Research
T1  - Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers
EP  - 6911
IS  - 27
SP  - 6902
VL  - 54
DO  - 10.1021/acs.iecr.5b01285
UR  - conv_326
ER  - 
@article{
author = "Stefanović, Ivan S. and Ekmescić, Bojana M. and Maksin, Danijela D. and Nastasović, Aleksandra B. and Miladinović, Zoran and Vuković, Zorica M. and Micić, Darko and Pergal, Marija V.",
year = "2015",
abstract = "Novel macroporous functionalized copolymers with different cross-linker concentrations and porosity parameters were synthesized by reaction of the pendant epoxy groups of poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (poly(GMA-co-EGDMA)) with hexamethylene diamine 1,3-bis(3-aminopropyl)tetramethyldisiloxane, and alpha,omega-diaminopropyl poly(dimethylsiloxane). The copolymers were prepared in forms, of spherical beads and characterized by Fourier transform infrared (FTIR); C-13 and Si-29 solid-state NMR, mercury porosimetry, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). Copolymers prepared with the higher cross-linker concentrations have better thermal stability, higher glass transition temperatures; higher specific surface areas, and smaller pore diameters that correspond to half Of the pore volumes. Out results show that functionalization significantly changed porosity parameters, mechanism of thermal degradation; and increased thermal, stability in comparison with the initial copolymers. These macroporous copolymers could potentially have many applications, i.e. for sorption of heavy and precious metals or as Material for gas chromatography columns.",
journal = "Industrial & Engineering Chemistry Research",
title = "Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers",
pages = "6911-6902",
number = "27",
volume = "54",
doi = "10.1021/acs.iecr.5b01285",
url = "conv_326"
}
Stefanović, I. S., Ekmescić, B. M., Maksin, D. D., Nastasović, A. B., Miladinović, Z., Vuković, Z. M., Micić, D.,& Pergal, M. V.. (2015). Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers. in Industrial & Engineering Chemistry Research, 54(27), 6902-6911.
https://doi.org/10.1021/acs.iecr.5b01285
conv_326
Stefanović IS, Ekmescić BM, Maksin DD, Nastasović AB, Miladinović Z, Vuković ZM, Micić D, Pergal MV. Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers. in Industrial & Engineering Chemistry Research. 2015;54(27):6902-6911.
doi:10.1021/acs.iecr.5b01285
conv_326 .
Stefanović, Ivan S., Ekmescić, Bojana M., Maksin, Danijela D., Nastasović, Aleksandra B., Miladinović, Zoran, Vuković, Zorica M., Micić, Darko, Pergal, Marija V., "Structure, Thermal, and Morphological Properties of Novel Macroporous Amino-Functionalized Glycidyl Methacrylate Based Copolymers" in Industrial & Engineering Chemistry Research, 54, no. 27 (2015):6902-6911,
https://doi.org/10.1021/acs.iecr.5b01285 .,
conv_326 .
1
21
13
23

Thermodynamics of mixed and pure aqueous solutions of K2HPO4 at T=298.15 K

Popović, Daniela Z.; Miladinović, Jelena; Miladinović, Zoran; Grujić, Snežana

(Maik Nauka/Interperiodica/Springer, New York, 2015)

TY  - JOUR
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Grujić, Snežana
PY  - 2015
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/388
AB  - Experimental results on isopiestic measurements for three ternary aqueous solutions of K2HPO4 with KCl, KBr, and KNO3 at T = 298.15 K were modeled with the Clegg-Pitzer-Brimblecombe equation based on mole-fraction-composition scale yielding appropriate mixing parameters, for the estimation of thermodynamic activities of solute components. The results for mean ionic activity coefficients of electrolytes in ternary solutions, calculated this way, are showing specific behavior depending on total ionic strength and ionic strength fractions of electrolytes. The activity coefficients of KCl in {yKCl + (1-y)K2HPO4}(aq) and of KBr in {yKBr + (1-y)K2HPO4}(aq) are changing consistently from the ionic strength and their ionic strength fractions contrary to activity coefficients of KNO3 in {yKNO(3) + (1-y)K2HPO4}(aq). In addition, molality of K2HPO4 aqueous saturated solution, in equilibrium with K2HPO4 center dot 3H(2)O(cr), and appropriate osmotic coefficient at T = 298.15 K, were determined by the isopiestic method.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Thermodynamics of mixed and pure aqueous solutions of K2HPO4 at T=298.15 K
EP  - 2345
IS  - 13
SP  - 2339
VL  - 89
DO  - 10.1134/S0036024415130270
UR  - conv_581
ER  - 
@article{
author = "Popović, Daniela Z. and Miladinović, Jelena and Miladinović, Zoran and Grujić, Snežana",
year = "2015",
abstract = "Experimental results on isopiestic measurements for three ternary aqueous solutions of K2HPO4 with KCl, KBr, and KNO3 at T = 298.15 K were modeled with the Clegg-Pitzer-Brimblecombe equation based on mole-fraction-composition scale yielding appropriate mixing parameters, for the estimation of thermodynamic activities of solute components. The results for mean ionic activity coefficients of electrolytes in ternary solutions, calculated this way, are showing specific behavior depending on total ionic strength and ionic strength fractions of electrolytes. The activity coefficients of KCl in {yKCl + (1-y)K2HPO4}(aq) and of KBr in {yKBr + (1-y)K2HPO4}(aq) are changing consistently from the ionic strength and their ionic strength fractions contrary to activity coefficients of KNO3 in {yKNO(3) + (1-y)K2HPO4}(aq). In addition, molality of K2HPO4 aqueous saturated solution, in equilibrium with K2HPO4 center dot 3H(2)O(cr), and appropriate osmotic coefficient at T = 298.15 K, were determined by the isopiestic method.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Thermodynamics of mixed and pure aqueous solutions of K2HPO4 at T=298.15 K",
pages = "2345-2339",
number = "13",
volume = "89",
doi = "10.1134/S0036024415130270",
url = "conv_581"
}
Popović, D. Z., Miladinović, J., Miladinović, Z.,& Grujić, S.. (2015). Thermodynamics of mixed and pure aqueous solutions of K2HPO4 at T=298.15 K. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 89(13), 2339-2345.
https://doi.org/10.1134/S0036024415130270
conv_581
Popović DZ, Miladinović J, Miladinović Z, Grujić S. Thermodynamics of mixed and pure aqueous solutions of K2HPO4 at T=298.15 K. in Russian Journal of Physical Chemistry A. 2015;89(13):2339-2345.
doi:10.1134/S0036024415130270
conv_581 .
Popović, Daniela Z., Miladinović, Jelena, Miladinović, Zoran, Grujić, Snežana, "Thermodynamics of mixed and pure aqueous solutions of K2HPO4 at T=298.15 K" in Russian Journal of Physical Chemistry A, 89, no. 13 (2015):2339-2345,
https://doi.org/10.1134/S0036024415130270 .,
conv_581 .
2
1
2

Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers

Bascarević, Zvezdana; Komljenović, Miroslav; Miladinović, Zoran; Nikolić, Violeta; Marjanović, Nataša; Petrović, Rada

(Springer, Dordrecht, 2015)

TY  - JOUR
AU  - Bascarević, Zvezdana
AU  - Komljenović, Miroslav
AU  - Miladinović, Zoran
AU  - Nikolić, Violeta
AU  - Marjanović, Nataša
AU  - Petrović, Rada
PY  - 2015
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/437
AB  - In this paper, geopolymers based on two different fly ash samples were exposed to sodium sulfate (Na2SO4) solution (50 g/l) over a period of 365 days. It was found that sulfate solution attack caused a small decrease in strength of geopolymer mortars. Analysis of the Na2SO4 solutions by optical emission spectroscopy indicated that exposing of the geopolymer samples to the Na2SO4 solution had caused leaching of one of the elements of the aluminosilicate gel, silicon. Mineralogical analyses of geopolymer samples did not show formation of any new phases due to a reaction with sulfate ions. Changes in aluminosilicate geopolymer gel due to sulfate attack were investigated by electron microscopy and nuclear magnetic resonance. It was found that treatment of geopolymer samples with the sulfate solution caused breaking of -Si-O-Si- bonds in aluminosilicate gel structure. Breaking of the -Si-O-Si- bonds and leaching of Si were consequences of the increase in the pH value of sulfate solution during testing.
PB  - Springer, Dordrecht
T2  - Materials and Structures
T1  - Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers
EP  - 697
IS  - 3
SP  - 683
VL  - 48
DO  - 10.1617/s11527-014-0325-4
UR  - conv_531
ER  - 
@article{
author = "Bascarević, Zvezdana and Komljenović, Miroslav and Miladinović, Zoran and Nikolić, Violeta and Marjanović, Nataša and Petrović, Rada",
year = "2015",
abstract = "In this paper, geopolymers based on two different fly ash samples were exposed to sodium sulfate (Na2SO4) solution (50 g/l) over a period of 365 days. It was found that sulfate solution attack caused a small decrease in strength of geopolymer mortars. Analysis of the Na2SO4 solutions by optical emission spectroscopy indicated that exposing of the geopolymer samples to the Na2SO4 solution had caused leaching of one of the elements of the aluminosilicate gel, silicon. Mineralogical analyses of geopolymer samples did not show formation of any new phases due to a reaction with sulfate ions. Changes in aluminosilicate geopolymer gel due to sulfate attack were investigated by electron microscopy and nuclear magnetic resonance. It was found that treatment of geopolymer samples with the sulfate solution caused breaking of -Si-O-Si- bonds in aluminosilicate gel structure. Breaking of the -Si-O-Si- bonds and leaching of Si were consequences of the increase in the pH value of sulfate solution during testing.",
publisher = "Springer, Dordrecht",
journal = "Materials and Structures",
title = "Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers",
pages = "697-683",
number = "3",
volume = "48",
doi = "10.1617/s11527-014-0325-4",
url = "conv_531"
}
Bascarević, Z., Komljenović, M., Miladinović, Z., Nikolić, V., Marjanović, N.,& Petrović, R.. (2015). Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers. in Materials and Structures
Springer, Dordrecht., 48(3), 683-697.
https://doi.org/10.1617/s11527-014-0325-4
conv_531
Bascarević Z, Komljenović M, Miladinović Z, Nikolić V, Marjanović N, Petrović R. Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers. in Materials and Structures. 2015;48(3):683-697.
doi:10.1617/s11527-014-0325-4
conv_531 .
Bascarević, Zvezdana, Komljenović, Miroslav, Miladinović, Zoran, Nikolić, Violeta, Marjanović, Nataša, Petrović, Rada, "Impact of sodium sulfate solution on mechanical properties and structure of fly ash based geopolymers" in Materials and Structures, 48, no. 3 (2015):683-697,
https://doi.org/10.1617/s11527-014-0325-4 .,
conv_531 .
72
37
69

Kvalitet testenine od spelte sa jajima i identifikacija jaja 13C MAS NMR spektroskopijom

Filipović, Jelena S.; Miladinović, Zoran; Pezo, Lato; Filipović, Nada K.; Filipović, Vladimir; Jevtić-Vukmirović, Aleksandra S.

(Savez hemijskih inženjera, Beograd, 2015)

TY  - JOUR
AU  - Filipović, Jelena S.
AU  - Miladinović, Zoran
AU  - Pezo, Lato
AU  - Filipović, Nada K.
AU  - Filipović, Vladimir
AU  - Jevtić-Vukmirović, Aleksandra S.
PY  - 2015
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/416
AB  - Dinamičan način življenja ima za tendenciju da se pojednostavi i vremenski skrati način pripremanja zdravog i nutritivno vrednog obroka. Dobra osobina testenine je što se može čuvati dugo vremena bez pogoršanja ukusa, mirisa i upotrebne vrednosti i ne stari kao hleb. U ovom radu je ispitana mogućnost dokazivanja jaja u testenini od spelte. Jajni melanž je dodavan u količini od 0, 124 i 248 g/kg krupice što odgovara količini od 0, 3 i 6 jaja. Post-hoc Tukijev (Tukey's) HSD testom, pri 95% granici poverenja pokazano je da postoji statistički značajna razlika između različitih uzoraka. Relativno niski koeficijenti varijacije, koji su dobijeni za svako od posmatranih merenja (1,25-12,42%) ukazuju na visoku tačnost merenja i na statističku značajnost rezultata. Primenjena je analiza standardne ocene ('standard score analysis'), radi potpunijeg sagledavanja uticaja količine jaja na kvalitet testenine od spelte. Najveće ocene ('score') za kvalitet (0,89) i za hemijske karakteristike testenine (0,70), dobijene su za formulacije testenine od spelte sa 6 jaja. Lipidi jaja pozitivno utiču na teksturu testenine, povećavaju tvrdoću (od 4 do 31%), smanjuju lepljivost (za 82 i 94%) i povećavaju žilavost (za 46 i 8%) kuvane testenine. Jaja poboljšavaju senzorne osobine integralne kuvane testenine od spelte, doprinose povećanju svetloće i udela žutog tona. Takođe je pokazano da se prisustvo jaja u testenini može jasno potvrditi pomoću 13C MAS NMR spektroskopije. Istovremeni porast površine pikova na 29 i 176 ppm dobijenih na osnovu polaznih spektara se direktno povezuju sa povećanjem sadržaja jaja u odgovarajućim uzorcima. Rezultati pokazuju da testenina sa jajima od spelte ima dobar tehnološki kvalitet, a da se u kontroli kvaliteta može koristiti NMR analiza za dokazivanje prisustva jaja.
AB  - This paper deals with the characteristics of spelt pasta enriched with eggs. Eggs were added to spelt farina in the quantity of 0, 124 or 248 g/kg (equivalent to 0, 3 or 6 eggs, respectively). Post-hoc Tukey's HSD test at 95% confidence limit showed significant differences between various samples. Relatively low coefficients of variation have been obtained for each applied assay (1.25-12.42%), which confirmed the high accuracy measurements and statistically significant results. Standard score analysis is applied for accessing the contribution of eggs' content to spelt pasta quality. Maximum scores regarding quality (0.89) and chemical characteristics (0.70) have been obtained for 6 eggs spelt pasta formulation. It is also shown that the presence of eggs in pasta can be clearly confirmed by 13C MAS NMR spectroscopy. Simultaneous increase in area of peak positioned at 29.5 and 176 ppm is directly associated with the increase in the content of added eggs in the corresponding samples. Pertinent data showed positive contribution of eggs to the spelt pasta and also that NMR spectrum can be used in the egg quantity control.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Kvalitet testenine od spelte sa jajima i identifikacija jaja 13C MAS NMR spektroskopijom
T1  - Quality of spelt pasta enriched with eggs and identification of eggs using 13C MAS NMR spectroscopy
EP  - 65
IS  - 1
SP  - 59
VL  - 69
DO  - 10.2298/HEMIND131030019F
UR  - conv_70
ER  - 
@article{
author = "Filipović, Jelena S. and Miladinović, Zoran and Pezo, Lato and Filipović, Nada K. and Filipović, Vladimir and Jevtić-Vukmirović, Aleksandra S.",
year = "2015",
abstract = "Dinamičan način življenja ima za tendenciju da se pojednostavi i vremenski skrati način pripremanja zdravog i nutritivno vrednog obroka. Dobra osobina testenine je što se može čuvati dugo vremena bez pogoršanja ukusa, mirisa i upotrebne vrednosti i ne stari kao hleb. U ovom radu je ispitana mogućnost dokazivanja jaja u testenini od spelte. Jajni melanž je dodavan u količini od 0, 124 i 248 g/kg krupice što odgovara količini od 0, 3 i 6 jaja. Post-hoc Tukijev (Tukey's) HSD testom, pri 95% granici poverenja pokazano je da postoji statistički značajna razlika između različitih uzoraka. Relativno niski koeficijenti varijacije, koji su dobijeni za svako od posmatranih merenja (1,25-12,42%) ukazuju na visoku tačnost merenja i na statističku značajnost rezultata. Primenjena je analiza standardne ocene ('standard score analysis'), radi potpunijeg sagledavanja uticaja količine jaja na kvalitet testenine od spelte. Najveće ocene ('score') za kvalitet (0,89) i za hemijske karakteristike testenine (0,70), dobijene su za formulacije testenine od spelte sa 6 jaja. Lipidi jaja pozitivno utiču na teksturu testenine, povećavaju tvrdoću (od 4 do 31%), smanjuju lepljivost (za 82 i 94%) i povećavaju žilavost (za 46 i 8%) kuvane testenine. Jaja poboljšavaju senzorne osobine integralne kuvane testenine od spelte, doprinose povećanju svetloće i udela žutog tona. Takođe je pokazano da se prisustvo jaja u testenini može jasno potvrditi pomoću 13C MAS NMR spektroskopije. Istovremeni porast površine pikova na 29 i 176 ppm dobijenih na osnovu polaznih spektara se direktno povezuju sa povećanjem sadržaja jaja u odgovarajućim uzorcima. Rezultati pokazuju da testenina sa jajima od spelte ima dobar tehnološki kvalitet, a da se u kontroli kvaliteta može koristiti NMR analiza za dokazivanje prisustva jaja., This paper deals with the characteristics of spelt pasta enriched with eggs. Eggs were added to spelt farina in the quantity of 0, 124 or 248 g/kg (equivalent to 0, 3 or 6 eggs, respectively). Post-hoc Tukey's HSD test at 95% confidence limit showed significant differences between various samples. Relatively low coefficients of variation have been obtained for each applied assay (1.25-12.42%), which confirmed the high accuracy measurements and statistically significant results. Standard score analysis is applied for accessing the contribution of eggs' content to spelt pasta quality. Maximum scores regarding quality (0.89) and chemical characteristics (0.70) have been obtained for 6 eggs spelt pasta formulation. It is also shown that the presence of eggs in pasta can be clearly confirmed by 13C MAS NMR spectroscopy. Simultaneous increase in area of peak positioned at 29.5 and 176 ppm is directly associated with the increase in the content of added eggs in the corresponding samples. Pertinent data showed positive contribution of eggs to the spelt pasta and also that NMR spectrum can be used in the egg quantity control.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Kvalitet testenine od spelte sa jajima i identifikacija jaja 13C MAS NMR spektroskopijom, Quality of spelt pasta enriched with eggs and identification of eggs using 13C MAS NMR spectroscopy",
pages = "65-59",
number = "1",
volume = "69",
doi = "10.2298/HEMIND131030019F",
url = "conv_70"
}
Filipović, J. S., Miladinović, Z., Pezo, L., Filipović, N. K., Filipović, V.,& Jevtić-Vukmirović, A. S.. (2015). Kvalitet testenine od spelte sa jajima i identifikacija jaja 13C MAS NMR spektroskopijom. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 69(1), 59-65.
https://doi.org/10.2298/HEMIND131030019F
conv_70
Filipović JS, Miladinović Z, Pezo L, Filipović NK, Filipović V, Jevtić-Vukmirović AS. Kvalitet testenine od spelte sa jajima i identifikacija jaja 13C MAS NMR spektroskopijom. in Hemijska industrija. 2015;69(1):59-65.
doi:10.2298/HEMIND131030019F
conv_70 .
Filipović, Jelena S., Miladinović, Zoran, Pezo, Lato, Filipović, Nada K., Filipović, Vladimir, Jevtić-Vukmirović, Aleksandra S., "Kvalitet testenine od spelte sa jajima i identifikacija jaja 13C MAS NMR spektroskopijom" in Hemijska industrija, 69, no. 1 (2015):59-65,
https://doi.org/10.2298/HEMIND131030019F .,
conv_70 .
3
2
5

The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers

Nikolić, Violeta; Komljenović, Miroslav; Bascarević, Zvezdana; Marjanović, Nataša; Miladinović, Zoran; Petrović, Rada

(Elsevier Sci Ltd, Oxford, 2015)

TY  - JOUR
AU  - Nikolić, Violeta
AU  - Komljenović, Miroslav
AU  - Bascarević, Zvezdana
AU  - Marjanović, Nataša
AU  - Miladinović, Zoran
AU  - Petrović, Rada
PY  - 2015
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/401
AB  - Reactivity of Class F fly ash (FA), development of strength, and structure of FA-based geopolymers, depending on the reaction conditions, were examined in this paper. The results of SEM/EDS and NMR analyses revealed that the composition of aluminosilicate gel changed during reaction, i.e. Si/Al atomic ratio decreased with the reaction time. Higher strength of geopolymers was associated with a higher fraction of aluminum rich structural units, higher crosslinking, and more compact structure. A rapid test for the assessment of FA reactivity and thus the applicability of FA for geopolymer synthesis was proposed.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers
EP  - 370
SP  - 361
VL  - 94
DO  - 10.1016/j.conbuildmat.2015.07.014
UR  - conv_562
ER  - 
@article{
author = "Nikolić, Violeta and Komljenović, Miroslav and Bascarević, Zvezdana and Marjanović, Nataša and Miladinović, Zoran and Petrović, Rada",
year = "2015",
abstract = "Reactivity of Class F fly ash (FA), development of strength, and structure of FA-based geopolymers, depending on the reaction conditions, were examined in this paper. The results of SEM/EDS and NMR analyses revealed that the composition of aluminosilicate gel changed during reaction, i.e. Si/Al atomic ratio decreased with the reaction time. Higher strength of geopolymers was associated with a higher fraction of aluminum rich structural units, higher crosslinking, and more compact structure. A rapid test for the assessment of FA reactivity and thus the applicability of FA for geopolymer synthesis was proposed.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers",
pages = "370-361",
volume = "94",
doi = "10.1016/j.conbuildmat.2015.07.014",
url = "conv_562"
}
Nikolić, V., Komljenović, M., Bascarević, Z., Marjanović, N., Miladinović, Z.,& Petrović, R.. (2015). The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 94, 361-370.
https://doi.org/10.1016/j.conbuildmat.2015.07.014
conv_562
Nikolić V, Komljenović M, Bascarević Z, Marjanović N, Miladinović Z, Petrović R. The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers. in Construction and Building Materials. 2015;94:361-370.
doi:10.1016/j.conbuildmat.2015.07.014
conv_562 .
Nikolić, Violeta, Komljenović, Miroslav, Bascarević, Zvezdana, Marjanović, Nataša, Miladinović, Zoran, Petrović, Rada, "The influence of fly ash characteristics and reaction conditions on strength and structure of geopolymers" in Construction and Building Materials, 94 (2015):361-370,
https://doi.org/10.1016/j.conbuildmat.2015.07.014 .,
conv_562 .
74
54
77

In situ Al-27 NMR kinetic investigation of zeolite A crystallization

Miladinović, Zoran; Zakrzewska, Joanna; Kovačević, Branimir; Miladinović, Jelena

(Elsevier Science Bv, Amsterdam, 2014)

TY  - JOUR
AU  - Miladinović, Zoran
AU  - Zakrzewska, Joanna
AU  - Kovačević, Branimir
AU  - Miladinović, Jelena
PY  - 2014
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/333
AB  - In this study, in situ Al-27 NMR spectroscopy was used to gain detailed information concerning kinetics of zeolite A crystallization. Changes of relative intensity and width at half-height of NMR lines at 59 ppm ascribed to Al(OSi)(4) solid structures units and at 79 ppm to Al(OH) T ions in liquid phase during crystallization, were observed. Normalized curves for series of synthesis, performed under different batch molar composition, were used for kinetic analysis applying Sharp and Hancock approach. The influence of total batch Na2O concentration (H2O/Na20 was 20 and 32) for three specific batch SiO2/Al2O3 molar ratios (1.7, 2.0 and 2.5) on the kinetic parameters was investigated. Kinetic analysis of line at 79 ppm provided values of parameter n that ranged from 0.93 to 1.97 indicating contribution of both diffusion and phase boundary controlled mechanisms, depending on batch SiO2/Al2O3 molar composition. On the other hand, analysis of line at 59 ppm showed strong correlation to Na2O batch content. Values of n from 1.94 to 3.34 for syntheses performed at lower alkalinity conditions (H2O/Na2O = 32) indicate Avrami-Erofe'ev nucleation and crystal growth model. Almost dominant presence of diffusion mechanism for synthesis conducted at higher alkalinity conditions (H2O/Na2O = 20) was verified by obtained values of n gathered around 1.5.
PB  - Elsevier Science Bv, Amsterdam
T2  - Microporous and Mesoporous Materials
T1  - In situ Al-27 NMR kinetic investigation of zeolite A crystallization
EP  - 142
SP  - 131
VL  - 195
DO  - 10.1016/j.micromeso.2014.04.022
UR  - conv_488
ER  - 
@article{
author = "Miladinović, Zoran and Zakrzewska, Joanna and Kovačević, Branimir and Miladinović, Jelena",
year = "2014",
abstract = "In this study, in situ Al-27 NMR spectroscopy was used to gain detailed information concerning kinetics of zeolite A crystallization. Changes of relative intensity and width at half-height of NMR lines at 59 ppm ascribed to Al(OSi)(4) solid structures units and at 79 ppm to Al(OH) T ions in liquid phase during crystallization, were observed. Normalized curves for series of synthesis, performed under different batch molar composition, were used for kinetic analysis applying Sharp and Hancock approach. The influence of total batch Na2O concentration (H2O/Na20 was 20 and 32) for three specific batch SiO2/Al2O3 molar ratios (1.7, 2.0 and 2.5) on the kinetic parameters was investigated. Kinetic analysis of line at 79 ppm provided values of parameter n that ranged from 0.93 to 1.97 indicating contribution of both diffusion and phase boundary controlled mechanisms, depending on batch SiO2/Al2O3 molar composition. On the other hand, analysis of line at 59 ppm showed strong correlation to Na2O batch content. Values of n from 1.94 to 3.34 for syntheses performed at lower alkalinity conditions (H2O/Na2O = 32) indicate Avrami-Erofe'ev nucleation and crystal growth model. Almost dominant presence of diffusion mechanism for synthesis conducted at higher alkalinity conditions (H2O/Na2O = 20) was verified by obtained values of n gathered around 1.5.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Microporous and Mesoporous Materials",
title = "In situ Al-27 NMR kinetic investigation of zeolite A crystallization",
pages = "142-131",
volume = "195",
doi = "10.1016/j.micromeso.2014.04.022",
url = "conv_488"
}
Miladinović, Z., Zakrzewska, J., Kovačević, B.,& Miladinović, J.. (2014). In situ Al-27 NMR kinetic investigation of zeolite A crystallization. in Microporous and Mesoporous Materials
Elsevier Science Bv, Amsterdam., 195, 131-142.
https://doi.org/10.1016/j.micromeso.2014.04.022
conv_488
Miladinović Z, Zakrzewska J, Kovačević B, Miladinović J. In situ Al-27 NMR kinetic investigation of zeolite A crystallization. in Microporous and Mesoporous Materials. 2014;195:131-142.
doi:10.1016/j.micromeso.2014.04.022
conv_488 .
Miladinović, Zoran, Zakrzewska, Joanna, Kovačević, Branimir, Miladinović, Jelena, "In situ Al-27 NMR kinetic investigation of zeolite A crystallization" in Microporous and Mesoporous Materials, 195 (2014):131-142,
https://doi.org/10.1016/j.micromeso.2014.04.022 .,
conv_488 .
18
8
16

Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K

Popović, Daniela Z.; Miladinović, Jelena; Rard, Joseph A.; Miladinović, Zoran; Grujić, Snežana

(Academic Press Ltd- Elsevier Science Ltd, London, 2014)

TY  - JOUR
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Rard, Joseph A.
AU  - Miladinović, Zoran
AU  - Grujić, Snežana
PY  - 2014
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/320
AB  - The molality-based osmotic coefficients of aqueous mixtures of K2SO4 and K2HPO4 have been measured at T = (298.15 +/- 0.01) K by the isopiestic method, at K2SO4 ionic strength fractions y = (0.21008, 0.39887, 0.60657, 0.80517, and 1) over the ionic strength range (1.3167 to 1.9587) mol . kg(-1), using KCl(aq) as the reference standard solution. These osmotic coefficients were modeled with an extended form of Pitzer's ion-interaction model equations, both with the usual Pitzer mixing terms and with Scatchard's neutral-electrolyte solution mixing terms, and with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There are no previously published isopiestic measurements for this ternary system. Model parameters for K2SO4(aq) at T = 298.15 K were also evaluated using the present results along with seven sets of osmotic coefficients taken from the published literature. For the {yK(2)SO(4) + (1 - y) K2HPO4}(aq) system, few or no mixing terms were needed for the three models because the ionic strength dependences of the osmotic coefficients of K2SO4(aq) and K2HPO4(aq) are very similar and their curves nearly parallel, as are those of the mixtures which are intermediate and nearly equally spaced as a function of the ionic strength fraction.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Chemical Thermodynamics
T1  - Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K
EP  - 93
SP  - 84
VL  - 79
DO  - 10.1016/j.jct.2014.07.010
UR  - conv_508
ER  - 
@article{
author = "Popović, Daniela Z. and Miladinović, Jelena and Rard, Joseph A. and Miladinović, Zoran and Grujić, Snežana",
year = "2014",
abstract = "The molality-based osmotic coefficients of aqueous mixtures of K2SO4 and K2HPO4 have been measured at T = (298.15 +/- 0.01) K by the isopiestic method, at K2SO4 ionic strength fractions y = (0.21008, 0.39887, 0.60657, 0.80517, and 1) over the ionic strength range (1.3167 to 1.9587) mol . kg(-1), using KCl(aq) as the reference standard solution. These osmotic coefficients were modeled with an extended form of Pitzer's ion-interaction model equations, both with the usual Pitzer mixing terms and with Scatchard's neutral-electrolyte solution mixing terms, and with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There are no previously published isopiestic measurements for this ternary system. Model parameters for K2SO4(aq) at T = 298.15 K were also evaluated using the present results along with seven sets of osmotic coefficients taken from the published literature. For the {yK(2)SO(4) + (1 - y) K2HPO4}(aq) system, few or no mixing terms were needed for the three models because the ionic strength dependences of the osmotic coefficients of K2SO4(aq) and K2HPO4(aq) are very similar and their curves nearly parallel, as are those of the mixtures which are intermediate and nearly equally spaced as a function of the ionic strength fraction.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Chemical Thermodynamics",
title = "Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K",
pages = "93-84",
volume = "79",
doi = "10.1016/j.jct.2014.07.010",
url = "conv_508"
}
Popović, D. Z., Miladinović, J., Rard, J. A., Miladinović, Z.,& Grujić, S.. (2014). Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K. in Journal of Chemical Thermodynamics
Academic Press Ltd- Elsevier Science Ltd, London., 79, 84-93.
https://doi.org/10.1016/j.jct.2014.07.010
conv_508
Popović DZ, Miladinović J, Rard JA, Miladinović Z, Grujić S. Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K. in Journal of Chemical Thermodynamics. 2014;79:84-93.
doi:10.1016/j.jct.2014.07.010
conv_508 .
Popović, Daniela Z., Miladinović, Jelena, Rard, Joseph A., Miladinović, Zoran, Grujić, Snežana, "Isopiestic determination of the osmotic and activity coefficients of the {yK(2)SO(4) + (1-y)K2HPO4}(aq) system at T=298.15 K" in Journal of Chemical Thermodynamics, 79 (2014):84-93,
https://doi.org/10.1016/j.jct.2014.07.010 .,
conv_508 .
11
7
11

Solubility in K+-Na+-Mg (4) (2-) aqueous solution at T=298.15 K

Popović, Daniela Z.; Miladinović, Jelena; Todorović, M. D.; Miladinović, Zoran

(Maik Nauka/Interperiodica/Springer, New York, 2013)

TY  - JOUR
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Todorović, M. D.
AU  - Miladinović, Zoran
PY  - 2013
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/286
AB  - In the salt solubility predictions for K+-Na+-Mg (4) (2-) aqueous solution the treatment of thermodynamic data of three-component systems at T = 298.15 K involved the application of the Extended Pitzer's ion-interaction model for the pure and mixed electrolyte solutions and criteria of phase equilibrium. Osmotic coefficients data of three-component systems were revised according to recently published parameters of the solutions NaCl(aq) and KCl(aq) that served as reference standards in isopiestic measurements. Parameters of the extended ion-interaction model of K2SO4(aq) are determined by treatment of experimental and predicted values of osmotic coefficient in supersaturated region obtained by the Zdanovskii-Stokes-Robinson rule. Results of salt solubility prediction were compared to experimental solubility data from literature. The agreement between calculated and experimental solubility data in the systems K2SO4 + MgSO4 + H2O, Na2SO4 + MgSO4 + H2O, and Na2SO4 + K2SO4 + H2O at T = 298.15 K, was excellent.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Solubility in K+-Na+-Mg (4) (2-) aqueous solution at T=298.15 K
EP  - 2186
IS  - 13
SP  - 2181
VL  - 87
DO  - 10.1134/S0036024413130219
UR  - conv_471
ER  - 
@article{
author = "Popović, Daniela Z. and Miladinović, Jelena and Todorović, M. D. and Miladinović, Zoran",
year = "2013",
abstract = "In the salt solubility predictions for K+-Na+-Mg (4) (2-) aqueous solution the treatment of thermodynamic data of three-component systems at T = 298.15 K involved the application of the Extended Pitzer's ion-interaction model for the pure and mixed electrolyte solutions and criteria of phase equilibrium. Osmotic coefficients data of three-component systems were revised according to recently published parameters of the solutions NaCl(aq) and KCl(aq) that served as reference standards in isopiestic measurements. Parameters of the extended ion-interaction model of K2SO4(aq) are determined by treatment of experimental and predicted values of osmotic coefficient in supersaturated region obtained by the Zdanovskii-Stokes-Robinson rule. Results of salt solubility prediction were compared to experimental solubility data from literature. The agreement between calculated and experimental solubility data in the systems K2SO4 + MgSO4 + H2O, Na2SO4 + MgSO4 + H2O, and Na2SO4 + K2SO4 + H2O at T = 298.15 K, was excellent.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Solubility in K+-Na+-Mg (4) (2-) aqueous solution at T=298.15 K",
pages = "2186-2181",
number = "13",
volume = "87",
doi = "10.1134/S0036024413130219",
url = "conv_471"
}
Popović, D. Z., Miladinović, J., Todorović, M. D.,& Miladinović, Z.. (2013). Solubility in K+-Na+-Mg (4) (2-) aqueous solution at T=298.15 K. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 87(13), 2181-2186.
https://doi.org/10.1134/S0036024413130219
conv_471
Popović DZ, Miladinović J, Todorović MD, Miladinović Z. Solubility in K+-Na+-Mg (4) (2-) aqueous solution at T=298.15 K. in Russian Journal of Physical Chemistry A. 2013;87(13):2181-2186.
doi:10.1134/S0036024413130219
conv_471 .
Popović, Daniela Z., Miladinović, Jelena, Todorović, M. D., Miladinović, Zoran, "Solubility in K+-Na+-Mg (4) (2-) aqueous solution at T=298.15 K" in Russian Journal of Physical Chemistry A, 87, no. 13 (2013):2181-2186,
https://doi.org/10.1134/S0036024413130219 .,
conv_471 .
1
1
1

Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations

Radulović, Aleksandra; Dondur, Vera; Vulić, Predrag; Miladinović, Zoran; Ćirić-Marjanović, Gordana; Dimitrijević, Radovan

(2013)

TY  - JOUR
AU  - Radulović, Aleksandra
AU  - Dondur, Vera
AU  - Vulić, Predrag
AU  - Miladinović, Zoran
AU  - Ćirić-Marjanović, Gordana
AU  - Dimitrijević, Radovan
PY  - 2013
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/296
AB  - In this work we investigated the conditions under which pure basic hexagonal nepheline phase is formed by the zeolite Na-LTA thermal transformation route. The influence of small variations in Na-LTA bulk stoichiometry on the rate and course of the thermal transformation process was examined. The starting materials were three Na-LTA samples with different Na2O: Al2O3: SiO2 ratios: 0.99Na(2)O: 1.00Al(2)O(3): 2.00 SiO2, 1.05Na(2)O: 1.06Al(2)O(3): 2.00SiO(2) and 1.05Na(2)O: 1.00Al(2)O(3): 2.05SiO(2). Upon heat treatment, the zeolite samples showed different conversion routes. At temperatures above 950 degrees C all three Na-LTA samples transformed into nepheline-type polymorphs. While the Na-LTA sample with the composition close to ideal stoichiometry gave pure basic hexagonal nepheline, the Na-LTA samples containing sodium, aluminum and silica excess formed mixtures of basic hexagonal nepheline and monoclinic trinepheline. The synthesized nepheline-type polymorphs were investigated by X-ray powder diffraction, Raman and NMR spectroscopy.
T2  - Journal of Physics and Chemistry of Solids
T1  - Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations
EP  - 1220
IS  - 9
SP  - 1212
VL  - 74
DO  - 10.1016/j.jpcs.2013.03.019
UR  - conv_457
ER  - 
@article{
author = "Radulović, Aleksandra and Dondur, Vera and Vulić, Predrag and Miladinović, Zoran and Ćirić-Marjanović, Gordana and Dimitrijević, Radovan",
year = "2013",
abstract = "In this work we investigated the conditions under which pure basic hexagonal nepheline phase is formed by the zeolite Na-LTA thermal transformation route. The influence of small variations in Na-LTA bulk stoichiometry on the rate and course of the thermal transformation process was examined. The starting materials were three Na-LTA samples with different Na2O: Al2O3: SiO2 ratios: 0.99Na(2)O: 1.00Al(2)O(3): 2.00 SiO2, 1.05Na(2)O: 1.06Al(2)O(3): 2.00SiO(2) and 1.05Na(2)O: 1.00Al(2)O(3): 2.05SiO(2). Upon heat treatment, the zeolite samples showed different conversion routes. At temperatures above 950 degrees C all three Na-LTA samples transformed into nepheline-type polymorphs. While the Na-LTA sample with the composition close to ideal stoichiometry gave pure basic hexagonal nepheline, the Na-LTA samples containing sodium, aluminum and silica excess formed mixtures of basic hexagonal nepheline and monoclinic trinepheline. The synthesized nepheline-type polymorphs were investigated by X-ray powder diffraction, Raman and NMR spectroscopy.",
journal = "Journal of Physics and Chemistry of Solids",
title = "Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations",
pages = "1220-1212",
number = "9",
volume = "74",
doi = "10.1016/j.jpcs.2013.03.019",
url = "conv_457"
}
Radulović, A., Dondur, V., Vulić, P., Miladinović, Z., Ćirić-Marjanović, G.,& Dimitrijević, R.. (2013). Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations. in Journal of Physics and Chemistry of Solids, 74(9), 1212-1220.
https://doi.org/10.1016/j.jpcs.2013.03.019
conv_457
Radulović A, Dondur V, Vulić P, Miladinović Z, Ćirić-Marjanović G, Dimitrijević R. Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations. in Journal of Physics and Chemistry of Solids. 2013;74(9):1212-1220.
doi:10.1016/j.jpcs.2013.03.019
conv_457 .
Radulović, Aleksandra, Dondur, Vera, Vulić, Predrag, Miladinović, Zoran, Ćirić-Marjanović, Gordana, Dimitrijević, Radovan, "Routes of synthesis of nepheline-type polymorphs: An influence of Na-LTA bulk composition on its thermal transformations" in Journal of Physics and Chemistry of Solids, 74, no. 9 (2013):1212-1220,
https://doi.org/10.1016/j.jpcs.2013.03.019 .,
conv_457 .
18
12
20

Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers

Bascarević, Zvezdana; Komljenović, Miroslav; Miladinović, Zoran; Nikolić, Violeta; Marjanović, Nataša; Zujović, Zoran; Petrović, Rada

(Elsevier Sci Ltd, Oxford, 2013)

TY  - JOUR
AU  - Bascarević, Zvezdana
AU  - Komljenović, Miroslav
AU  - Miladinović, Zoran
AU  - Nikolić, Violeta
AU  - Marjanović, Nataša
AU  - Zujović, Zoran
AU  - Petrović, Rada
PY  - 2013
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/284
AB  - The geopolymers based on fly ash were exposed to the concentrated (6 M) NH4NO3 solution for 540 days. The highest compressive strength decrease occurred in the initial 28 days testing period. Study of the effects of the NH4NO3 solution on the geopolymer structure indicated leaching of alkali and alkaline earth cations and breaking of -Si-O-Al- bonds in aluminosilicate gel. The reduction of compressive strength of the geopolymers was associated with the structural defects in the aluminosilicate gel created by breaking of -Si-O-Al- bonds. Subsequent fluctuation in compressive strength was a result of the structural defects reparation by silicon.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers
EP  - 579
SP  - 570
VL  - 41
DO  - 10.1016/j.conbuildmat.2012.12.067
UR  - conv_444
ER  - 
@article{
author = "Bascarević, Zvezdana and Komljenović, Miroslav and Miladinović, Zoran and Nikolić, Violeta and Marjanović, Nataša and Zujović, Zoran and Petrović, Rada",
year = "2013",
abstract = "The geopolymers based on fly ash were exposed to the concentrated (6 M) NH4NO3 solution for 540 days. The highest compressive strength decrease occurred in the initial 28 days testing period. Study of the effects of the NH4NO3 solution on the geopolymer structure indicated leaching of alkali and alkaline earth cations and breaking of -Si-O-Al- bonds in aluminosilicate gel. The reduction of compressive strength of the geopolymers was associated with the structural defects in the aluminosilicate gel created by breaking of -Si-O-Al- bonds. Subsequent fluctuation in compressive strength was a result of the structural defects reparation by silicon.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers",
pages = "579-570",
volume = "41",
doi = "10.1016/j.conbuildmat.2012.12.067",
url = "conv_444"
}
Bascarević, Z., Komljenović, M., Miladinović, Z., Nikolić, V., Marjanović, N., Zujović, Z.,& Petrović, R.. (2013). Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 41, 570-579.
https://doi.org/10.1016/j.conbuildmat.2012.12.067
conv_444
Bascarević Z, Komljenović M, Miladinović Z, Nikolić V, Marjanović N, Zujović Z, Petrović R. Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers. in Construction and Building Materials. 2013;41:570-579.
doi:10.1016/j.conbuildmat.2012.12.067
conv_444 .
Bascarević, Zvezdana, Komljenović, Miroslav, Miladinović, Zoran, Nikolić, Violeta, Marjanović, Nataša, Zujović, Zoran, Petrović, Rada, "Effects of the concentrated NH4NO3 solution on mechanical properties and structure of the fly ash based geopolymers" in Construction and Building Materials, 41 (2013):570-579,
https://doi.org/10.1016/j.conbuildmat.2012.12.067 .,
conv_444 .
60
42
62

Isopiestic determination of the osmotic and activity coefficients of the {yKBr + (1-y)K2HPO4}(aq) system at T=298.15 K

Popović, Daniela Z.; Miladinović, Jelena; Miladinović, Zoran; Grujić, Snežana; Todorović, Milica D.; Rard, Joseph A.

(Academic Press Ltd- Elsevier Science Ltd, London, 2013)

TY  - JOUR
AU  - Popović, Daniela Z.
AU  - Miladinović, Jelena
AU  - Miladinović, Zoran
AU  - Grujić, Snežana
AU  - Todorović, Milica D.
AU  - Rard, Joseph A.
PY  - 2013
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/282
AB  - The molality-based osmotic coefficients of aqueous mixtures of KBr and K2HPO4 have been measured at T = (298.15 +/- 0.01) K by the isopiestic method at KBr ionic strength fractions y = (0.18328, 0.38241, 0.58031, 0.79186, and 1) and over the ionic strength range (2.5452 to 10.0418) mol . kg (-1), using KCl(aq) and CaCl2(aq) as the reference standard solutions. These experiments were performed using glass sample dishes because preliminary experiments showed that some corrosion of our usual gold-plated silver dishes occurred with dissolution of silver, presumably by "pinhole" corrosion at imperfections in the gold layer. These osmotic coefficients were modeled with an extended form of Pitzer's ion-interaction model equations, both with the usual Pitzer mixing terms and with Scatchard's neutral-electrolyte mixing terms, and with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There are no previously published isopiestic measurements for this ternary system. The present assessment yields mixing parameters for these models. Model parameters for KBr(aq) at T = (298.15 +/- 0.01) K were also evaluated using the present results along with four sets of osmotic coefficients taken from the published literature. For the {yKBr + (1 -y)K2HPO4}(aq) system, the model with five Scatchard mixing terms gave a significantly better representation of the osmotic coefficients than any of the other models and is therefore recommended for calculation of osmotic and activity coefficients.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Chemical Thermodynamics
T1  - Isopiestic determination of the osmotic and activity coefficients of the {yKBr + (1-y)K2HPO4}(aq) system at T=298.15 K
EP  - 161
SP  - 151
VL  - 62
DO  - 10.1016/j.jct.2013.03.003
UR  - conv_449
ER  - 
@article{
author = "Popović, Daniela Z. and Miladinović, Jelena and Miladinović, Zoran and Grujić, Snežana and Todorović, Milica D. and Rard, Joseph A.",
year = "2013",
abstract = "The molality-based osmotic coefficients of aqueous mixtures of KBr and K2HPO4 have been measured at T = (298.15 +/- 0.01) K by the isopiestic method at KBr ionic strength fractions y = (0.18328, 0.38241, 0.58031, 0.79186, and 1) and over the ionic strength range (2.5452 to 10.0418) mol . kg (-1), using KCl(aq) and CaCl2(aq) as the reference standard solutions. These experiments were performed using glass sample dishes because preliminary experiments showed that some corrosion of our usual gold-plated silver dishes occurred with dissolution of silver, presumably by "pinhole" corrosion at imperfections in the gold layer. These osmotic coefficients were modeled with an extended form of Pitzer's ion-interaction model equations, both with the usual Pitzer mixing terms and with Scatchard's neutral-electrolyte mixing terms, and with the Clegg-Pitzer-Brimblecombe equations based on the mole-fraction-composition scale. There are no previously published isopiestic measurements for this ternary system. The present assessment yields mixing parameters for these models. Model parameters for KBr(aq) at T = (298.15 +/- 0.01) K were also evaluated using the present results along with four sets of osmotic coefficients taken from the published literature. For the {yKBr + (1 -y)K2HPO4}(aq) system, the model with five Scatchard mixing terms gave a significantly better representation of the osmotic coefficients than any of the other models and is therefore recommended for calculation of osmotic and activity coefficients.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Chemical Thermodynamics",
title = "Isopiestic determination of the osmotic and activity coefficients of the {yKBr + (1-y)K2HPO4}(aq) system at T=298.15 K",
pages = "161-151",
volume = "62",
doi = "10.1016/j.jct.2013.03.003",
url = "conv_449"
}
Popović, D. Z., Miladinović, J., Miladinović, Z., Grujić, S., Todorović, M. D.,& Rard, J. A.. (2013). Isopiestic determination of the osmotic and activity coefficients of the {yKBr + (1-y)K2HPO4}(aq) system at T=298.15 K. in Journal of Chemical Thermodynamics
Academic Press Ltd- Elsevier Science Ltd, London., 62, 151-161.
https://doi.org/10.1016/j.jct.2013.03.003
conv_449
Popović DZ, Miladinović J, Miladinović Z, Grujić S, Todorović MD, Rard JA. Isopiestic determination of the osmotic and activity coefficients of the {yKBr + (1-y)K2HPO4}(aq) system at T=298.15 K. in Journal of Chemical Thermodynamics. 2013;62:151-161.
doi:10.1016/j.jct.2013.03.003
conv_449 .
Popović, Daniela Z., Miladinović, Jelena, Miladinović, Zoran, Grujić, Snežana, Todorović, Milica D., Rard, Joseph A., "Isopiestic determination of the osmotic and activity coefficients of the {yKBr + (1-y)K2HPO4}(aq) system at T=298.15 K" in Journal of Chemical Thermodynamics, 62 (2013):151-161,
https://doi.org/10.1016/j.jct.2013.03.003 .,
conv_449 .
15
10
14

Influence of the desilication process on the acidity of HZSM-5 zeolite

Rac, Vladislav; Rakić, Vesna; Miladinović, Zoran; Stosić, Dušan; Auroux, Aline

(Elsevier, Amsterdam, 2013)

TY  - JOUR
AU  - Rac, Vladislav
AU  - Rakić, Vesna
AU  - Miladinović, Zoran
AU  - Stosić, Dušan
AU  - Auroux, Aline
PY  - 2013
UR  - https://riofh.iofh.bg.ac.rs/handle/123456789/268
AB  - The influence of the alkaline treatment on the acidity of zeolite ZSM-5 (SiO2/Al2O3 = 23, 50 and 80) modified by desilication was investigated. The samples were characterized by X-ray diffraction, low temperature adsorption of nitrogen and solid-state Al-27 MAS NMR. Acidity of the samples was investigated using microcalorimetry-volumetry of ammonia adsorption at 423 K. Acid sites accessibility and intracrystalline diffusion were estimated by the thermokinetic parameter. The desilication process was shown to be Si/Al ratio dependant. Relative enhancement of mesopore surface decreased in the following order of SiO2/Al2O3: 50 >80 >23. Pore size distribution broadened and mesopore sizes increased with increasing Si/Al ratio. For samples with SiO2/Al2O3 = 50 and 80 almost full preservation of acid sites strength and distribution was achieved. Significant alteration of the acidity was found for the mesoporous sample with SiO2/Al2O3 = 23. Thermokinetic parameter values indicate facilitated intracristalline diffusion for mesoporous samples.
PB  - Elsevier, Amsterdam
T2  - Thermochimica Acta
T1  - Influence of the desilication process on the acidity of HZSM-5 zeolite
EP  - 78
SP  - 73
VL  - 567
DO  - 10.1016/j.tca.2013.01.008
UR  - conv_462
ER  - 
@article{
author = "Rac, Vladislav and Rakić, Vesna and Miladinović, Zoran and Stosić, Dušan and Auroux, Aline",
year = "2013",
abstract = "The influence of the alkaline treatment on the acidity of zeolite ZSM-5 (SiO2/Al2O3 = 23, 50 and 80) modified by desilication was investigated. The samples were characterized by X-ray diffraction, low temperature adsorption of nitrogen and solid-state Al-27 MAS NMR. Acidity of the samples was investigated using microcalorimetry-volumetry of ammonia adsorption at 423 K. Acid sites accessibility and intracrystalline diffusion were estimated by the thermokinetic parameter. The desilication process was shown to be Si/Al ratio dependant. Relative enhancement of mesopore surface decreased in the following order of SiO2/Al2O3: 50 >80 >23. Pore size distribution broadened and mesopore sizes increased with increasing Si/Al ratio. For samples with SiO2/Al2O3 = 50 and 80 almost full preservation of acid sites strength and distribution was achieved. Significant alteration of the acidity was found for the mesoporous sample with SiO2/Al2O3 = 23. Thermokinetic parameter values indicate facilitated intracristalline diffusion for mesoporous samples.",
publisher = "Elsevier, Amsterdam",
journal = "Thermochimica Acta",
title = "Influence of the desilication process on the acidity of HZSM-5 zeolite",
pages = "78-73",
volume = "567",
doi = "10.1016/j.tca.2013.01.008",
url = "conv_462"
}
Rac, V., Rakić, V., Miladinović, Z., Stosić, D.,& Auroux, A.. (2013). Influence of the desilication process on the acidity of HZSM-5 zeolite. in Thermochimica Acta
Elsevier, Amsterdam., 567, 73-78.
https://doi.org/10.1016/j.tca.2013.01.008
conv_462
Rac V, Rakić V, Miladinović Z, Stosić D, Auroux A. Influence of the desilication process on the acidity of HZSM-5 zeolite. in Thermochimica Acta. 2013;567:73-78.
doi:10.1016/j.tca.2013.01.008
conv_462 .
Rac, Vladislav, Rakić, Vesna, Miladinović, Zoran, Stosić, Dušan, Auroux, Aline, "Influence of the desilication process on the acidity of HZSM-5 zeolite" in Thermochimica Acta, 567 (2013):73-78,
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conv_462 .
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