Photo-electrocatalytic degradation of 4-chlorophenol over sputter deposited Ti oxide films

被引：65

作者：

Rodríguez, J

Gómez, M

Lindquist, SE

Granqvist, CG

机构：

[1] Uppsala Univ, Angstrom Lab, Dept Mat Sci, SE-75121 Uppsala, Sweden

[2] Uppsala Univ, Dept Phys Chem, SE-75121 Uppsala, Sweden

来源：

THIN SOLID FILMS | 2000年 / 360卷 / 1-2期

关键词：

optical coatings; photocatalysis; sputtering; titanium oxide;

D O I：

10.1016/S0040-6090(99)01080-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ti oxide films with thicknesses in the 1.9-8.0 mu m range were sputter deposited onto electrically conductive transparent glass substrates. X-ray diffraction indicated a dominating rutile structure. The films were used to investigate photo-electrocatalytic degradation of 4-chlorophenol in water solution, employing a specially designed reactor. UV light was used for the photocatalysis, and a bias potential was applied for avoiding electron-hole recombination. The photocurrent and the kinetics of the catalytic reaction were tested with potentiostatic and spectrophotometric measurements. The reaction products were investigated using different arrangements of a Ti oxide working electrode and a Pt counter electrode. UV irradiation through the glass substrate yielded an enhancement of the reaction kinetics for increased film thicknesses and applied bias potential. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：250 / 255

页数：6

共 23 条

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