Cvetković, Olga

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  • Cvetković, Olga (1)
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Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight

Dostanić, Jasmina; Lončarević, Davor; Banković, Predrag; Cvetković, Olga; Jovanović, Dušan M.; Mijin, Dušan

(Taylor & Francis Inc, Philadelphia, 2011)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Lončarević, Davor
AU  - Banković, Predrag
AU  - Cvetković, Olga
AU  - Jovanović, Dušan M.
AU  - Mijin, Dušan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1924
AB  - Photocatalytic degradation of synthesized azo pyridone dye (5-(4-sulpho phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone), in aqueous solutions by simulated sunlight in the presence of commercial TiO2, Aeroxide P25, was studied. The reaction kinetics analysis showed that photodegradation exhibits pseudo first-order kinetics according to Langmuir-Hinshelwood model. The effects of various process parameters on the photocatalytic degradation were investigated. The optimal catalyst content and pH were determined. A decrease in the reaction rate was observed upon the increase of the initial dye concentration. Degradation of the dye was enhanced by hydrogen peroxide, but it was inhibited by ethanol. The influence of temperature was studied, and the energy of activation was determined. According to total organic carbon (TOC) analysis, 54% of TOC remained when 100% of the dye was decolorized. Although the intermediates were not determined in this study, the TOC results clearly indicate their presence during the reaction. In addition, photocatalytic degradation of simulated dyehouse effluents, containing tested azo pyridone dye and associated auxiliary chemicals was investigated.
PB  - Taylor & Francis Inc, Philadelphia
T2  - Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine
T1  - Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight
EP  - 79
IS  - 1
SP  - 70
VL  - 46
DO  - 10.1080/10934529.2011.526905
ER  - 
@article{
author = "Dostanić, Jasmina and Lončarević, Davor and Banković, Predrag and Cvetković, Olga and Jovanović, Dušan M. and Mijin, Dušan",
year = "2011",
abstract = "Photocatalytic degradation of synthesized azo pyridone dye (5-(4-sulpho phenylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone), in aqueous solutions by simulated sunlight in the presence of commercial TiO2, Aeroxide P25, was studied. The reaction kinetics analysis showed that photodegradation exhibits pseudo first-order kinetics according to Langmuir-Hinshelwood model. The effects of various process parameters on the photocatalytic degradation were investigated. The optimal catalyst content and pH were determined. A decrease in the reaction rate was observed upon the increase of the initial dye concentration. Degradation of the dye was enhanced by hydrogen peroxide, but it was inhibited by ethanol. The influence of temperature was studied, and the energy of activation was determined. According to total organic carbon (TOC) analysis, 54% of TOC remained when 100% of the dye was decolorized. Although the intermediates were not determined in this study, the TOC results clearly indicate their presence during the reaction. In addition, photocatalytic degradation of simulated dyehouse effluents, containing tested azo pyridone dye and associated auxiliary chemicals was investigated.",
publisher = "Taylor & Francis Inc, Philadelphia",
journal = "Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine",
title = "Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight",
pages = "79-70",
number = "1",
volume = "46",
doi = "10.1080/10934529.2011.526905"
}
Dostanić, J., Lončarević, D., Banković, P., Cvetković, O., Jovanović, D. M.,& Mijin, D.. (2011). Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight. in Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine
Taylor & Francis Inc, Philadelphia., 46(1), 70-79.
https://doi.org/10.1080/10934529.2011.526905
Dostanić J, Lončarević D, Banković P, Cvetković O, Jovanović DM, Mijin D. Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight. in Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine. 2011;46(1):70-79.
doi:10.1080/10934529.2011.526905 .
Dostanić, Jasmina, Lončarević, Davor, Banković, Predrag, Cvetković, Olga, Jovanović, Dušan M., Mijin, Dušan, "Influence of process parameters on the photodegradation of synthesized azo pyridone dye in TiO2 water suspension under simulated sunlight" in Journal of Environmental Science and Health Part A-Toxic/Hazardous Substances & Environmental Engine, 46, no. 1 (2011):70-79,
https://doi.org/10.1080/10934529.2011.526905 . .
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