Brugnera, Michelle Fernanda [UNESP]Miyata, Marcelo [UNESP]Fujimura Leite, Clarice Queico [UNESP]Zanoni, Maria Valnice Boldrin [UNESP]2014-12-032014-12-032014-03-15Journal Of Photochemistry And Photobiology A-chemistry. Lausanne: Elsevier Science Sa, v. 278, p. 1-8, 2014.1010-6030http://hdl.handle.net/11449/113187Self-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.1-8engNanotubes TiO2Ag impregnationDisinfectionAg release from Ti/TiO2-AgMycobacteriumArtigo10.1016/j.jphotochem.2013.12.020WOS:000332442100001Acesso restrito0000-0002-2296-1393