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Type: Artigo de periódico
Title: Electrochemically assisted photocatalytic degradation of reactive dyes
Author: Pelegrini, R
Peralta-Zamora, P
de Andrade, AR
Reyes, J
Duran, N
Abstract: The aim of this study was to investigate the efficiency of the electrochemically assisted photocatalytic process in the degradation of C. I. Reactive Blue 19 on a Ti/Ru0,3Ti0,7O2 electrode. By using the quartz device and the Ti-supported noble metal oxide coating, decolorizations ratios higher than 95% and TOC reduction of about 52% were observed during a period of 120 min, Comparing this value with the sum of the decolorization ratios obtained by a single application of electrochemical and photochemical procedures, it is possible to observe a significant synergic effect between both processes. The electrochemical process was conduced at 28 degrees C (refrigeration with air) and pH of 11.0, and with a constant potential of 1.8 V versus Ag/AgCl. With these conditions, the mean current was 23 mA. The voltammetric results also confirm the synergic effect of the simultaneous process. (C) 1999 Elsevier Science B.V. All rights reserved.
Subject: advanced oxidation technologies
textile industry wastewater
electrochemical oxidation
mixed Ti-Ru oxides
Country: Holanda
Editor: Elsevier Science Bv
Citation: Applied Catalysis B-environmental. Elsevier Science Bv, v. 22, n. 2, n. 83, n. 90, 1999.
Rights: fechado
Identifier DOI: 10.1016/S0926-3373(99)00037-5
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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