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Type: Artigo de periódico
Title: Methylene blue immobilized in cellulose/TiO2 and SiO2/TiO2 : Electrochemical properties and factorial design.
Author: Scotti, R
Lima, EC
Benvenutti, EV
Piatnicki, CMS
Dias, SLP
Gushikem, Y
Kubota, LT
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
Country: Brasil
Editor: Soc Brasileira Quimica
Rights: aberto
Identifier DOI: 10.1590/S0100-40422006000200006
Date Issue: 2006
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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