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International Journal of Electrochemistry
Volume 2012 (2012), Article ID 154316, 18 pages
http://dx.doi.org/10.1155/2012/154316
Review Article

A Brief Review on Environmental Application of Boron Doped Diamond Electrodes as a New Way for Electrochemical Incineration of Synthetic Dyes

1Departamento de Investigación Ambiental, Centro de Innovación Aplicada en Tecnologías Competitivas, Omega 201, Fraccionamiento Industrial Delta, 37545 León, Guanajuato, Mexico
2Departamento de Química, Centro de Ciências Exatas e da Terra, Universidade Federal do Rio Grande do Norte, Lagoa Nova, 59078-970 Natal, RN, Brazil
3Departamento de Ingeniería Geomática e Hidráulica, Universidad de Guanajuato, Avenida Juárez 77, 36000, Guanajuato, Mexico

Received 29 April 2011; Revised 23 June 2011; Accepted 24 June 2011

Academic Editor: Yasuaki Einaga

Copyright © 2012 J. M. Peralta-Hernández et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The present study was stimulated by an authoritative review on decontamination of wastewaters containing synthetic organic dyes by electrochemical methods published in Martínez-Huitle and Brillas (2009). As reviewed by the authors, there have been significant efforts on investigating the decontamination of wastewaters containing synthetic dyes by electrochemical methods, and currently, more studies are being published. A high number of electrodes have been tested in this method, including boron doped diamond (BDD) anodes. In this context, many papers have demonstrated that the use of a BDD thin film in electrochemical oxidation provides total mineralization with high current efficiency of different organics in real wastewaters. And this synthetic material deposited on several supports has been recently applied to dyestuff treatment. Although, in the last two years, more reports have been published treating electrochemically synthetic dyes wastewaters using BDD, there are few reports on the use of electrooxidation processes to degrade real textile effluents. The aim of this paper is to summarize and discuss the most important and recent results available in the literature about the application of BDD electrodes for removing azo dyes in synthetic and real wastewaters.