Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles
Nema prikaza
Autori
Radoicić, M.Šaponjić, Zoran
Janković, Ivana A.
Ćirić-Marjanović, Gordana
Ahrenkiel, Scott P.
Comora, M. I.
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Polyaniline/TiO2 nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in water without the addition of acid, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm). The morphological, structural, and optical properties of the synthesized nanocomposites prepared at initial TiO2/aniline mole ratios of 50,100, and 150 were studied using transmission electron microscopy, X-ray powder diffraction, Raman and UV-vis spectroscopies. The presence of emeraldine salt and the base form of linear polyaniline (PANI) chains as well as the presence of phenazine units, branched PANI chains, oligomeric structures and short PANI chains in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The anatase crystal structure of TiO2 nanopartides in all the nanocomposites was confirmed by X-ray powder diffraction measurements and by Raman spectroscopy. The photocatalytic activities of PANI/TiO2 nanocomposites were e...valuated using the photocatalytic degradation of Rhodamine B and Methylene blue as model compounds and compared with the activity of bare colloidal TiO2 nanoparticles. Enhanced degradation efficiencies in the dyes used were observed. A possible explanation for the PANI/TiO2 photocatalytic activities was suggested, taking into account the influence of the molecular structures of the used dyes and PANI in PANI/TiO2 nanocomposites.
Ključne reči:
TiO2 / Polyaniline / PhotocatalysisIzvor:
Applied Catalysis B-Environmental, 2013, 136, 133-139Finansiranje / projekti:
- Office of Integrative Activities
- Office Of The Director [0963033] Funding Source: National Science Foundation
- Uticaj veličine, oblika i strukture nanočestica na njihova svojstva i svojstva nanokompozita (RS-MESTD-Basic Research (BR or ON)-172056)
- Elektroprovodni i redoks-aktivni polimeri i oligomeri: sinteza, struktura, svojstva i primena (RS-MESTD-Basic Research (BR or ON)-172043)
- Materijali redukovane dimenzionalnosti za efikasnu apsorpciju svetlosti i konverziju energije (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
DOI: 10.1016/j.apcatb.2013.01.007
ISSN: 0926-3373
WoS: 000317539400016
Scopus: 2-s2.0-84874528795
Institucija/grupa
Institut za opštu i fizičku hemijuTY - JOUR AU - Radoicić, M. AU - Šaponjić, Zoran AU - Janković, Ivana A. AU - Ćirić-Marjanović, Gordana AU - Ahrenkiel, Scott P. AU - Comora, M. I. PY - 2013 UR - https://riofh.iofh.bg.ac.rs/handle/123456789/267 AB - Polyaniline/TiO2 nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in water without the addition of acid, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm). The morphological, structural, and optical properties of the synthesized nanocomposites prepared at initial TiO2/aniline mole ratios of 50,100, and 150 were studied using transmission electron microscopy, X-ray powder diffraction, Raman and UV-vis spectroscopies. The presence of emeraldine salt and the base form of linear polyaniline (PANI) chains as well as the presence of phenazine units, branched PANI chains, oligomeric structures and short PANI chains in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The anatase crystal structure of TiO2 nanopartides in all the nanocomposites was confirmed by X-ray powder diffraction measurements and by Raman spectroscopy. The photocatalytic activities of PANI/TiO2 nanocomposites were evaluated using the photocatalytic degradation of Rhodamine B and Methylene blue as model compounds and compared with the activity of bare colloidal TiO2 nanoparticles. Enhanced degradation efficiencies in the dyes used were observed. A possible explanation for the PANI/TiO2 photocatalytic activities was suggested, taking into account the influence of the molecular structures of the used dyes and PANI in PANI/TiO2 nanocomposites. T2 - Applied Catalysis B-Environmental T1 - Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles EP - 139 SP - 133 VL - 136 DO - 10.1016/j.apcatb.2013.01.007 UR - conv_445 ER -
@article{ author = "Radoicić, M. and Šaponjić, Zoran and Janković, Ivana A. and Ćirić-Marjanović, Gordana and Ahrenkiel, Scott P. and Comora, M. I.", year = "2013", abstract = "Polyaniline/TiO2 nanocomposite powders were successfully synthesized by the oxidative polymerization of aniline with ammonium peroxydisulfate in water without the addition of acid, in the presence of colloidal TiO2 nanoparticles (d similar to 4.5 nm). The morphological, structural, and optical properties of the synthesized nanocomposites prepared at initial TiO2/aniline mole ratios of 50,100, and 150 were studied using transmission electron microscopy, X-ray powder diffraction, Raman and UV-vis spectroscopies. The presence of emeraldine salt and the base form of linear polyaniline (PANI) chains as well as the presence of phenazine units, branched PANI chains, oligomeric structures and short PANI chains in PANI/TiO2 nanocomposites was confirmed by Raman spectroscopy. The anatase crystal structure of TiO2 nanopartides in all the nanocomposites was confirmed by X-ray powder diffraction measurements and by Raman spectroscopy. The photocatalytic activities of PANI/TiO2 nanocomposites were evaluated using the photocatalytic degradation of Rhodamine B and Methylene blue as model compounds and compared with the activity of bare colloidal TiO2 nanoparticles. Enhanced degradation efficiencies in the dyes used were observed. A possible explanation for the PANI/TiO2 photocatalytic activities was suggested, taking into account the influence of the molecular structures of the used dyes and PANI in PANI/TiO2 nanocomposites.", journal = "Applied Catalysis B-Environmental", title = "Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles", pages = "139-133", volume = "136", doi = "10.1016/j.apcatb.2013.01.007", url = "conv_445" }
Radoicić, M., Šaponjić, Z., Janković, I. A., Ćirić-Marjanović, G., Ahrenkiel, S. P.,& Comora, M. I.. (2013). Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles. in Applied Catalysis B-Environmental, 136, 133-139. https://doi.org/10.1016/j.apcatb.2013.01.007 conv_445
Radoicić M, Šaponjić Z, Janković IA, Ćirić-Marjanović G, Ahrenkiel SP, Comora MI. Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles. in Applied Catalysis B-Environmental. 2013;136:133-139. doi:10.1016/j.apcatb.2013.01.007 conv_445 .
Radoicić, M., Šaponjić, Zoran, Janković, Ivana A., Ćirić-Marjanović, Gordana, Ahrenkiel, Scott P., Comora, M. I., "Improvements to the photocatalytic efficiency of polyaniline modified TiO2 nanoparticles" in Applied Catalysis B-Environmental, 136 (2013):133-139, https://doi.org/10.1016/j.apcatb.2013.01.007 ., conv_445 .