Electrodeposition of titanium(IV) oxide film from sacrificial titanium anode in I2-added acetone bath

被引：48

作者：

Kamada, K ^{[1
]}

Mukai, M ^{[1
]}

Matsumoto, Y ^{[1
]}

机构：

[1] Kumamoto Univ, Fac Engn, Dept Appl Chem & Biotechnol, Kumamoto 8608555, Japan

来源：

ELECTROCHIMICA ACTA | 2002年 / 47卷 / 20期

基金：

日本学术振兴会;

关键词：

electrodeposition; sacrificial anode; valve metal; titanium(IV) oxide; photocatalyst;

D O I：

10.1016/S0013-4686(02)00251-7

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A TiO2 film was fabricated by a simple electrochemical method using a sacrificial titanium anode as a cationic source in an I-2-dissolved acetone bath, where the solvent contains iodide ions as a supporting electrolyte but no Ti salt as an electrolyte. At the initial stage of electrolysis, anodic oxidation of Ti anode occurred under the presence of water as an impurity to acetone. Subsequently, TiO2+ was produced as a result of the dissolution of oxide films under the influence of iodide ions, and was then electrodeposited on the cathode surface. The morphologies of as-deposited films were found to be dependent on the film thickness, which in turn is determined by the voltage applied during the electrolysis. Moreover, the obtained films show photocatalytic activity for decomposition of gaseous acetaldehyde without annealing. In this paper, the electrodeposition mechanism is discussed in detail. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：3309 / 3313

页数：5

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