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Type: Artigo de periódico
Title: Azul de metileno imobilizado na celulose/TiO2 e SiO2/TiO2: propriedades eletroquímicas e planejamento fatorial
Title Alternative: Methylene blue immobilized in cellulose/TiO2 and SiO2/TiO2: electrochemical properties and factorial design
Author: Scotti, Rodrigo
Lima, Eder C.
Benvenutti, Edilson V.
Piatnicki, Clarisse M. S.
Dias, Sílvio L. P.
Gushikem, Yoshitaka
Kubota, Lauro T.
Abstract: The electrochemical properties of methylene blue immobilized on cellulose/TiO2 and mixed oxide SiO2/TiO2 matrices were investigated by means of cyclic voltammetry. The electron mediator property of the methylene blue was optimized using a factorial design, consisting of four factors in two levels. The experimental observations and data analyses on the system indicate that the lowest peak separation occurs for Sil/TiOAM, 1.0 mol L-1 KCl solution and 20 mV s-1 scan rate, while values of current ratio closest to unity were found for Cel/TiOAM independent of electrolyte concentration, 0.2 or 1.0 mol L-1, and scan rate, 20 mV s-1 or 60 mV s-1.
Subject: factorial design
cyclic voltammetry
methylene blue
Editor: Sociedade Brasileira de Química
Rights: aberto
Identifier DOI: 10.1590/S0100-40422006000200006
Date Issue: 1-Apr-2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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