Photoelectrochemical doping of TiO2 particles and the effect of charge carrier density on the photocatalytic activity of microporous semiconductor electrode films

被引：77

作者：

Torimoto, T

Fox, RJ

Fox, MA

机构：

[1] Dept. of Chemistry and Biochemistry, University of Texas at Austin, Austin

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1996年 / 143卷 / 11期

关键词：

D O I：

10.1149/1.1837277

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Irradiation with a very high intensity laser pulse (355 nm) induces blue color in TiO2 powders and films. The blue color, which is assigned to the formation of Ti3+ in the particle, persists in air for several months. With an increase of the concentration of Ti3+ in a given particle, photocatalytic activity is decreased because of a decrease in the thickness of the space-charge layer as deep Ti3+ traps are populated.

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页码：3712 / 3717

页数：6

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