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Wet Air Oxidation of Phenol over Ru Based Catalysts – Effects of Support

Published online by Cambridge University Press:  01 February 2011

A. E. Espinosa des Los Monteros ,
G. Lafaye ,
G. Torres  and
J. Barbier Jr
A. E. Espinosa des Los Monteros
Affiliation:
Université de Poitiers, LACCO UMR 6503, 40 avenue du Recteur Pineau, F-86022 Poitiers Cedex, France. Email: [email protected] Universidad Juárez Autónoma de Tabasco, DACB, Laboratorio de Catálisis Heterogénea Km.1 Carretera Cunduacan-Jalpa de Méndez, CP86690, A.P. 24, Cunduacan Tabasco, México
G. Lafaye
Affiliation:
Université de Poitiers, LACCO UMR 6503, 40 avenue du Recteur Pineau, F-86022 Poitiers Cedex, France. Email: [email protected]
G. Torres
Affiliation:
Universidad Juárez Autónoma de Tabasco, DACB, Laboratorio de Catálisis Heterogénea Km.1 Carretera Cunduacan-Jalpa de Méndez, CP86690, A.P. 24, Cunduacan Tabasco, México
J. Barbier Jr
Affiliation:
Université de Poitiers, LACCO UMR 6503, 40 avenue du Recteur Pineau, F-86022 Poitiers Cedex, France. Email: [email protected]
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Abstract

Catalytic wet air oxidation (CWAO) of aqueous solutions of phenol was performed on ruthenium catalysts supported on different oxides: TiO2, ZrO2 and their doped ceria mixtures. Phenol was chosen as a model pollutant molecule because of its wide use in industrial processes. All the samples were found to be highly active for phenol oxidation and the various titania-ceria mixtures were the most efficient for total organic carbon (TOC) removal. ICP analysis of the remaining solution after reaction revealed that ruthenium has not leached. Moreover, elementary analysis of the used catalysts showed that the deposition of carbonaceous species on the surface of the catalysts was rather low and was dependent on the nature of the support.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1279: New Catalytic Materials , 2010 , 38
Copyright
Copyright © Materials Research Society 2010

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