Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies

Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies

The photocatalytic activity of TiO2 deposits (Degussa-P25 and Sachtleben-Hombikat) has been studied using salicylic acid as a model water pollutant and an UV-fluorescent lamp as a light source. Both catalysts have shown very similar properties towards the photocatalytic degradation of salicylic acid...

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Main Authors: S. M. Ould-Mame, O. Zahraa, M. Bouchy
Format: Article
Language:English
Published: Hindawi Limited 2000-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/S1110662X0000009X
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spelling doaj-b796f662cc0446e4b4ff54f278dd2f4c2020-11-24T23:58:08ZengHindawi LimitedInternational Journal of Photoenergy1110-662X2000-01-0122596610.1155/S1110662X0000009XPhotocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studiesS. M. Ould-Mame0O. Zahraa1M. Bouchy2Département de Chimie Physique des Réactions - UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 451, NANCY CEDEX F-54001, FranceDépartement de Chimie Physique des Réactions - UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 451, NANCY CEDEX F-54001, FranceDépartement de Chimie Physique des Réactions - UMR 7630 CNRS-INPL, ENSIC, 1, rue Grandville, BP 451, NANCY CEDEX F-54001, FranceThe photocatalytic activity of TiO2 deposits (Degussa-P25 and Sachtleben-Hombikat) has been studied using salicylic acid as a model water pollutant and an UV-fluorescent lamp as a light source. Both catalysts have shown very similar properties towards the photocatalytic degradation of salicylic acid. Special attention has been given to the effect of the light flux absorption and of the pollutant adsorption. Moderate mass-transfer limitation has been found. Specific parameters of the phenomenon have then been determined for the two catalysts and a simple general expression of the rate of photocatalytic degradation has been derived.http://dx.doi.org/10.1155/S1110662X0000009X
collection DOAJ
language English
format Article
sources DOAJ
author S. M. Ould-Mame
O. Zahraa
M. Bouchy
spellingShingle S. M. Ould-Mame
O. Zahraa
M. Bouchy
Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies
International Journal of Photoenergy
author_facet S. M. Ould-Mame
O. Zahraa
M. Bouchy
author_sort S. M. Ould-Mame
title Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies
title_short Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies
title_full Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies
title_fullStr Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies
title_full_unstemmed Photocatalytic degradation of salicylic acid on fixed TiO2 - kinetic studies
title_sort photocatalytic degradation of salicylic acid on fixed tio2 - kinetic studies
publisher Hindawi Limited
series International Journal of Photoenergy
issn 1110-662X
publishDate 2000-01-01
description The photocatalytic activity of TiO2 deposits (Degussa-P25 and Sachtleben-Hombikat) has been studied using salicylic acid as a model water pollutant and an UV-fluorescent lamp as a light source. Both catalysts have shown very similar properties towards the photocatalytic degradation of salicylic acid. Special attention has been given to the effect of the light flux absorption and of the pollutant adsorption. Moderate mass-transfer limitation has been found. Specific parameters of the phenomenon have then been determined for the two catalysts and a simple general expression of the rate of photocatalytic degradation has been derived.
url http://dx.doi.org/10.1155/S1110662X0000009X
work_keys_str_mv AT smouldmame photocatalyticdegradationofsalicylicacidonfixedtio2kineticstudies
AT ozahraa photocatalyticdegradationofsalicylicacidonfixedtio2kineticstudies
AT mbouchy photocatalyticdegradationofsalicylicacidonfixedtio2kineticstudies
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