Influence of particle size on the photoactivity of Ti/TiO2 thin film electrodes, and enhanced photoelectrocatalytic degradation of indigo carmine dye

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGuaraldo, T. T.
dc.creatorPulcinelli, Sandra Helena
dc.creatorZanoni, Maria Valnice Boldrin
dc.date2014-05-20T14:19:15Z
dc.date2016-10-25T17:40:59Z
dc.date2014-05-20T14:19:15Z
dc.date2016-10-25T17:40:59Z
dc.date2011-01-01
dc.date.accessioned2017-04-05T22:30:48Z
dc.date.available2017-04-05T22:30:48Z
dc.identifierJournal of Photochemistry and Photobiology A-chemistry. Lausanne: Elsevier B.V. Sa, v. 217, n. 1, p. 259-266, 2011.
dc.identifier1010-6030
dc.identifierhttp://hdl.handle.net/11449/25809
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25809
dc.identifier10.1016/j.jphotochem.2010.10.019
dc.identifierWOS:000286952400036
dc.identifier0000-0002-2296-1393
dc.identifierhttp://dx.doi.org/10.1016/j.jphotochem.2010.10.019
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870648
dc.descriptionPhotoanodes based on Ti/TiO2 thin films were prepared by the sol-gel method, using either tetraisopropoxide (Ti(OPri)(4)) or modified tetraisopropoxide, producing electrodes with different sized nanoparticle coatings, termed nanoporous (20 nm) or nanoparticulated (10 nm) electrodes. The anatase form dominated the composition of the nanoparticulated electrode, which presented a higher surface area, a fiat band potential shift of -160 mV and a 50% improvement in photoactivity, compared to the nanoporous electrode. 100% color removal, and 75% mineralization, of indigo carmine dye were achieved after 15 min of photoelectrocatalytic treatment using a nanoparticulated Ti/TiO2 electrode operated at a current density of 0.4 mA cm(-2). Our findings indicate that the use of nanoparticulated electrodes, under UV irradiation and with controlled current density, is an efficient alternative for the removal of food dye contaminants during wastewater treatment. (C) 2010 Elsevier B.V. All rights reserved.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherElsevier B.V. Sa
dc.relationJournal of Photochemistry and Photobiology A: Chemistry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectIndigo carmine
dc.subjectPhotoelectrocatalytic treatment
dc.subjectNanoporous TiO2
dc.subjectNanoparticulated TiO2
dc.subjectThin films
dc.subjectSol-gel
dc.titleInfluence of particle size on the photoactivity of Ti/TiO2 thin film electrodes, and enhanced photoelectrocatalytic degradation of indigo carmine dye
dc.typeOtro


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