Photoelectrochemical performance of Ag-TiO2/ITO film and photoelectrocatalytic activity towards the oxidation of organic pollutants

被引：78

作者：

He, C

Xiong, Y ^{[1
]}

Chen, J

Zha, CH

Zhu, XH

机构：

[1] Zhongshan Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China

[2] Zhaoqing Coll, Dept Chem, Zhaoqing 526061, Peoples R China

[3] Zhongshan Univ, Instrumentat Anal & Res Ctr, Guangzhou 510275, Peoples R China

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2003年 / 157卷 / 01期

基金：

美国国家科学基金会;

关键词：

photoelectrochemistry; photocatalysis; Ag deposition; TiO2; formic acid;

D O I：

10.1016/S1010-6030(03)00080-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ag-TiO2 composite film was supported on indium-tin oxide glass (ITO) by a dip-coating and subsequent photodeposition procedure. The composite film was characterised by UV-Vis diffuse reflectance spectra, X-ray reflection diffraction (XRD) spectra, scanning electron microscope (SEM) and photoelectrochemical measurement. It was used as a photoanode in a two-compartment photoelectrochemical cell to investigate the feasibility of a hybrid technology of Ag deposition combined with the application of an external electric field. The experimental results show that the combination has an apparent additive effect with respect to suppressing the, recombination between the photogenerated charge carriers and enhancing the photoelectrocatalytic (PEC) oxidation of formic Acid. A primary approach to a pulse PEC technology presents the possibility that the Ag-TiO2/ITO film electrode is performed at an anodic bias over the oxidation potential of the deposited Ag. (C) 2003 Elsevier Science B.V All rights reserved.

引用

页码：71 / 79

页数：9

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