Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions

Aims of the present work are to investigate the photomineralization of commercial humic acid in water solution.The effect of initial pH of solution and different anions (chloride, sulfate and mixture) on the photocatalytic degradation of HA with titanium dioxide in aqueous solution has been examined...

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Main Authors: Jarek Wiszniowski, Didier Robert, Joanna Surmacz-Gorska, Korneliusz Miksch, Jean-Victor Weber
Format: Article
Language:English
Published: Wiley 2003-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/S1110662X03000151
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author Jarek Wiszniowski
Didier Robert
Joanna Surmacz-Gorska
Korneliusz Miksch
Jean-Victor Weber
author_facet Jarek Wiszniowski
Didier Robert
Joanna Surmacz-Gorska
Korneliusz Miksch
Jean-Victor Weber
author_sort Jarek Wiszniowski
collection DOAJ
description Aims of the present work are to investigate the photomineralization of commercial humic acid in water solution.The effect of initial pH of solution and different anions (chloride, sulfate and mixture) on the photocatalytic degradation of HA with titanium dioxide in aqueous solution has been examined. The photocatalytic mineralization rate in alkaline solution is lower than in neutral and acidic solution. In our conditions no effect of chloride ions on the degradation rate is observed. The influence of the sulfate depends on its concentration in the solution. For a large concentration, we note a decrease of the mineralization rate.
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series International Journal of Photoenergy
spelling doaj-art-2f5bfe2db92a4fd59c1f2fa0c4cdf7fc2025-02-03T01:24:18ZengWileyInternational Journal of Photoenergy1110-662X2003-01-0152697410.1155/S1110662X03000151Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anionsJarek Wiszniowski0Didier Robert1Joanna Surmacz-Gorska2Korneliusz Miksch3Jean-Victor Weber4Environmental Biotechnology Department, Silesian University of Technology, Akademika 2, Gliwice 44-100, PolandLaboratoire de Chimie et Applications (EA 3471), Universite de Metz, rue Victor Demange, Saint-Avold 57500, FranceEnvironmental Biotechnology Department, Silesian University of Technology, Akademika 2, Gliwice 44-100, PolandEnvironmental Biotechnology Department, Silesian University of Technology, Akademika 2, Gliwice 44-100, PolandLaboratoire de Chimie et Applications (EA 3471), Universite de Metz, rue Victor Demange, Saint-Avold 57500, FranceAims of the present work are to investigate the photomineralization of commercial humic acid in water solution.The effect of initial pH of solution and different anions (chloride, sulfate and mixture) on the photocatalytic degradation of HA with titanium dioxide in aqueous solution has been examined. The photocatalytic mineralization rate in alkaline solution is lower than in neutral and acidic solution. In our conditions no effect of chloride ions on the degradation rate is observed. The influence of the sulfate depends on its concentration in the solution. For a large concentration, we note a decrease of the mineralization rate.http://dx.doi.org/10.1155/S1110662X03000151
spellingShingle Jarek Wiszniowski
Didier Robert
Joanna Surmacz-Gorska
Korneliusz Miksch
Jean-Victor Weber
Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions
International Journal of Photoenergy
title Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions
title_full Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions
title_fullStr Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions
title_full_unstemmed Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions
title_short Photocatalytic mineralization of humic acids with TiO2: Effect of pH, sulfate and chloride anions
title_sort photocatalytic mineralization of humic acids with tio2 effect of ph sulfate and chloride anions
url http://dx.doi.org/10.1155/S1110662X03000151
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