Buha, Jelena

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  • Buha, Jelena (1)
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Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method

Dostanic, Jasmina; Grbic, Bosko; Radić, Nenad; Stefanov, Plamen; Šaponjić, Zoran; Buha, Jelena; Mijin, Dušan Ž.

(2012)

TY  - JOUR
AU  - Dostanic, Jasmina
AU  - Grbic, Bosko
AU  - Radić, Nenad
AU  - Stefanov, Plamen
AU  - Šaponjić, Zoran
AU  - Buha, Jelena
AU  - Mijin, Dušan Ž.
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/4701
AB  - In this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Chemical Engineering Journal
T1  - Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method
VL  - 180
SP  - 57
EP  - 65
DO  - 10.1016/j.cej.2011.10.100
ER  - 
@article{
author = "Dostanic, Jasmina and Grbic, Bosko and Radić, Nenad and Stefanov, Plamen and Šaponjić, Zoran and Buha, Jelena and Mijin, Dušan Ž.",
year = "2012",
abstract = "In this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Chemical Engineering Journal",
title = "Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method",
volume = "180",
pages = "57-65",
doi = "10.1016/j.cej.2011.10.100"
}
Dostanic, J., Grbic, B., Radić, N., Stefanov, P., Šaponjić, Z., Buha, J.,& Mijin, D. Ž.. (2012). Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method. in Chemical Engineering Journal, 180, 57-65.
https://doi.org/10.1016/j.cej.2011.10.100
Dostanic J, Grbic B, Radić N, Stefanov P, Šaponjić Z, Buha J, Mijin DŽ. Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method. in Chemical Engineering Journal. 2012;180:57-65.
doi:10.1016/j.cej.2011.10.100 .
Dostanic, Jasmina, Grbic, Bosko, Radić, Nenad, Stefanov, Plamen, Šaponjić, Zoran, Buha, Jelena, Mijin, Dušan Ž., "Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method" in Chemical Engineering Journal, 180 (2012):57-65,
https://doi.org/10.1016/j.cej.2011.10.100 . .
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