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Kinetic study of adsorption and photo-decolorization of Reactive Red 198 on TiO2 surface / S. Dutta in Chemical engineering journal, Vol. 155 N° 3 (Decembre 2009) 

Public ISBD [article]  in Chemical engineering journal > Vol. 155 N° 3 (Decembre 2009) . - pp. 674-679 Titre : Kinetic study of adsorption and photo-decolorization of Reactive Red 198 on TiO2 surface Type de document : texte imprimé Auteurs : S. Dutta, Auteur ; S.A. Parsons, Auteur ; C. Bhattacharjee, Auteur Année de publication : 2010 Article en page(s) : pp. 674-679 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Adsorption  Advanced  oxidation  process  Catalyst  regeneration  Reactive  Red  198  TiO2-photocatalysis  Catalyst  activity Index. décimale : 660 Résumé : Recycling and reuse of wastewater after purification will reduce the environmental pollution as well as fulfill the increasing demand of water. Adsorption-based water treatment process is very popular for dye-house wastewater treatment. The present study deals with treatment of wastewater contaminated by reactive dye. TiO2 is used as adsorbent and the spent adsorbent has been regenerated by Advanced Oxidation Process (AOP), without using any other chemicals. TiO2 adsorbs dye molecules and then those dye molecules have been oxidized via a photocatalytic reaction in presence of UV irradiation. Kinetics of dye adsorption and photocatalytic oxidation reaction has been developed in this study. Photocatalyst adsorbent (TiO2) has been reused several times after regeneration. The activity of catalyst decreases after each cycle; due to poisoning cause by intermediate by-products. Kinetic of this catalyst deactivation has been incorporated with L–H model to develop the photocatalytic reaction kinetic model. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X4RWW8-1&_user=6 [...] [article] Kinetic study of adsorption and photo-decolorization of Reactive Red 198 on TiO2 surface [texte imprimé] / S. Dutta, Auteur ; S.A. Parsons, Auteur ; C. Bhattacharjee, Auteur . - 2010 . - pp. 674-679. Génie Chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 155 N° 3 (Decembre 2009) . - pp. 674-679 Mots-clés : Adsorption  Advanced  oxidation  process  Catalyst  regeneration  Reactive  Red  198  TiO2-photocatalysis  Catalyst  activity Index. décimale : 660 Résumé : Recycling and reuse of wastewater after purification will reduce the environmental pollution as well as fulfill the increasing demand of water. Adsorption-based water treatment process is very popular for dye-house wastewater treatment. The present study deals with treatment of wastewater contaminated by reactive dye. TiO2 is used as adsorbent and the spent adsorbent has been regenerated by Advanced Oxidation Process (AOP), without using any other chemicals. TiO2 adsorbs dye molecules and then those dye molecules have been oxidized via a photocatalytic reaction in presence of UV irradiation. Kinetics of dye adsorption and photocatalytic oxidation reaction has been developed in this study. Photocatalyst adsorbent (TiO2) has been reused several times after regeneration. The activity of catalyst decreases after each cycle; due to poisoning cause by intermediate by-products. Kinetic of this catalyst deactivation has been incorporated with L–H model to develop the photocatalytic reaction kinetic model. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X4RWW8-1&_user=6 [...]