Silver ion release from electrodes of nanotubes of TiO2 impregnated with Ag nanoparticles applied in photoelectrocatalytic disinfection

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorBrugnera, Michelle Fernanda
dc.creatorMiyata, Marcelo
dc.creatorFujimura Leite, Clarice Queico
dc.creatorZanoni, Maria Valnice Boldrin
dc.date2014-12-03T13:11:28Z
dc.date2016-10-25T20:14:19Z
dc.date2014-12-03T13:11:28Z
dc.date2016-10-25T20:14:19Z
dc.date2014-03-15
dc.date.accessioned2017-04-06T06:30:51Z
dc.date.available2017-04-06T06:30:51Z
dc.identifierJournal Of Photochemistry And Photobiology A-chemistry. Lausanne: Elsevier Science Sa, v. 278, p. 1-8, 2014.
dc.identifier1010-6030
dc.identifierhttp://hdl.handle.net/11449/113187
dc.identifierhttp://acervodigital.unesp.br/handle/11449/113187
dc.identifier10.1016/j.jphotochem.2013.12.020
dc.identifierWOS:000332442100001
dc.identifier0000-0002-2296-1393
dc.identifierhttp://dx.doi.org/10.1016/j.jphotochem.2013.12.020
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/923936
dc.descriptionSelf-organized TiO2 nanotubes arrays electrodes were impregnated with 0-16% of Ag nanoparticles (Ti/TiO2-Ag) using different procedures. The electrodes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and photocurrent vs potential curves. The best results were obtained by electrode prepared by photochemical reduction, after immersion in a solution AgNO3 0.05 M (pH 8). The monitoring of Ag+ lixiviation by anodic stripping voltammetry at glassy carbon electrode indicated that a maximum of 2.5 x 10(-6) M is released in the first 40 min of treatment, but it is neglected when used subsequently. Moreover, the antimicrobial behavior of electrodes Ti/TiO2-Ag applied in photoelectrocatalysis presented 100% disinfection in 3 min by using UV irradiation and 99.6% in 30 min with visible irradiation. In addition, the analysis of silver in solution along the reaction shows a negligible lixiviation and a high stability of the surface silver deposits. Crown Copyright (C) 2014 Published by Elsevier B.V. All rights reserved.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageeng
dc.publisherElsevier B.V.
dc.relationJournal of Photochemistry and Photobiology A: Chemistry
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectNanotubes TiO2
dc.subjectAg impregnation
dc.subjectDisinfection
dc.subjectAg release from Ti/TiO2-Ag
dc.subjectMycobacterium
dc.titleSilver ion release from electrodes of nanotubes of TiO2 impregnated with Ag nanoparticles applied in photoelectrocatalytic disinfection
dc.typeOtro


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