Fraga, Luciano Evangelista [UNESP]Franco, Jefferson Honorio [UNESP]Orlandi, Marcelo Ornaghi [UNESP]Zanoni, Maria Valnice Boldrin [UNESP]2014-05-272014-05-272013-09-01Journal of Environmental Chemical Engineering, v. 1, n. 3, p. 194-199, 2013.2213-3437http://hdl.handle.net/11449/76409We prepared a W/WO3/TiO2 bicomposite photoanode by simple electrochemical anodization of W foil, followed by cathodic electrodeposition of TiO2 and annealing at 450 C for 30 min. This photoanode shows good photoactivity under irradiation with UV and visible light. In optimized conditions, it promotes complete photoelectrocatalytic oxidation of 3.33 × 10-5 mol L-1 basic red 51 solution (which is used in hair dye) at 0.1 mol L-1 Na2SO4, pH 2.0, under a current density of 1.25 mA cm-2 and ultraviolet and visible radiation-total organic carbon removal is 94 and 88%, respectively. This effect paves the way for the sustainable solar-assisted remediation of water bodies contaminated with organic components of hair dyes. © 2013 Elsevier Ltd. All rights reserved.194-199engBasic red 51Hair dyePhotoelectrocatalysisTiO2 cathodic electrosynthesisW/WO3/TiO2 bicomposite photoanodeWO3 electrochemical anodizationArtigo10.1016/j.jece.2013.04.018Acesso restrito2-s2.0-8488374557223055815670930570000-0002-2296-1393