Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution

Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution

The kinetics of the photocatalytic degradation of Fenuron (3-phenyl-1,1-dimethylurea) in aqueous suspension of several semiconductors irradiated at 365nm has been investigated. The kinetics of the reaction is well described by the Langmuir-Hinshelwood model showing that the degradation reactions occ...

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Main Authors: Ouarda Brahmia, Abdelaziz Boulkamh, Tahar Sehili, Jean-Pierre Aguer, Claire Richard
Format: Article
Language:English
Published: Hindawi Limited 2002-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/S1110662X02000132
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spelling doaj-af065eac64b84318aae1a53e4d43abb12020-11-25T00:20:18ZengHindawi LimitedInternational Journal of Photoenergy1110-662X2002-01-0142858910.1155/S1110662X02000132Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solutionOuarda Brahmia0Abdelaziz Boulkamh1Tahar Sehili2Jean-Pierre Aguer3Claire Richard4Laboratoire des Sciences et Technologie de l'Environnement, Faculté des Sciences, Université Mentouri, Constantine 25000, AlgeriaLaboratoire des Sciences et Technologie de l'Environnement, Faculté des Sciences, Université Mentouri, Constantine 25000, AlgeriaLaboratoire des Sciences et Technologie de l'Environnement, Faculté des Sciences, Université Mentouri, Constantine 25000, AlgeriaLaboratoire de Photochimie Moléculaire et Macromoléculaire (UMR 6505) Université Blaise Pascal, Aubiére Cedex F-63177, FranceLaboratoire de Photochimie Moléculaire et Macromoléculaire (UMR 6505) Université Blaise Pascal, Aubiére Cedex F-63177, FranceThe kinetics of the photocatalytic degradation of Fenuron (3-phenyl-1,1-dimethylurea) in aqueous suspension of several semiconductors irradiated at 365nm has been investigated. The kinetics of the reaction is well described by the Langmuir-Hinshelwood model showing that the degradation reactions occur on the semiconductors particles surface. The primary photoproducts were identified by RMN and GC/MS. The main initial reaction is hydroxylation in ortho and para position with respect to the urea function. The rate of the photocatalytic degradation increases upon addition of small amounts of hydrogen peroxide, but is slightly reduced by chloride ions.http://dx.doi.org/10.1155/S1110662X02000132
collection DOAJ
language English
format Article
sources DOAJ
author Ouarda Brahmia
Abdelaziz Boulkamh
Tahar Sehili
Jean-Pierre Aguer
Claire Richard
spellingShingle Ouarda Brahmia
Abdelaziz Boulkamh
Tahar Sehili
Jean-Pierre Aguer
Claire Richard
Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution
International Journal of Photoenergy
author_facet Ouarda Brahmia
Abdelaziz Boulkamh
Tahar Sehili
Jean-Pierre Aguer
Claire Richard
author_sort Ouarda Brahmia
title Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution
title_short Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution
title_full Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution
title_fullStr Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution
title_full_unstemmed Kinetics of photocatalytic decomposition of Fenuron over TiO2 in aqueous solution
title_sort kinetics of photocatalytic decomposition of fenuron over tio2 in aqueous solution
publisher Hindawi Limited
series International Journal of Photoenergy
issn 1110-662X
publishDate 2002-01-01
description The kinetics of the photocatalytic degradation of Fenuron (3-phenyl-1,1-dimethylurea) in aqueous suspension of several semiconductors irradiated at 365nm has been investigated. The kinetics of the reaction is well described by the Langmuir-Hinshelwood model showing that the degradation reactions occur on the semiconductors particles surface. The primary photoproducts were identified by RMN and GC/MS. The main initial reaction is hydroxylation in ortho and para position with respect to the urea function. The rate of the photocatalytic degradation increases upon addition of small amounts of hydrogen peroxide, but is slightly reduced by chloride ions.
url http://dx.doi.org/10.1155/S1110662X02000132
work_keys_str_mv AT ouardabrahmia kineticsofphotocatalyticdecompositionoffenuronovertio2inaqueoussolution
AT abdelazizboulkamh kineticsofphotocatalyticdecompositionoffenuronovertio2inaqueoussolution
AT taharsehili kineticsofphotocatalyticdecompositionoffenuronovertio2inaqueoussolution
AT jeanpierreaguer kineticsofphotocatalyticdecompositionoffenuronovertio2inaqueoussolution
AT clairerichard kineticsofphotocatalyticdecompositionoffenuronovertio2inaqueoussolution
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