PHOTOELECTROCHEMICAL CATALYSIS OF THE OXIDATION OF ORGANIC-MOLECULES BY OXYGEN ON SMALL SEMICONDUCTOR PARTICLES WITH TIO2 AS AN EXAMPLE

被引：104
作者：
GERISCHER, H
机构：
[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, D-1000 Berlin 33
来源：
ELECTROCHIMICA ACTA | 1993年 / 38卷 / 01期
关键词：
PHOTOCATALYSIS; PHOTOOXIDATION; SEMICONDUCTOR PARTICLES; TIO2; QUANTUM YIELD;
D O I：
10.1016/0013-4686(93)80003-I
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The kinetics of the photocatalytic oxidation of organic molecules at TiO2 particles are analyzed with the aim of determining the conditions required to obtain high quantum yields. With the assumption that holes react at the interface faster than electrons, the particles contain, in the steady state, an excess of electrons under illumination. It is shown that the rate of electron capture by oxygen is a decisive parameter for the yield. It also transpires that only very small particles can reach a high yield.
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页码：3 / 9
页数：7
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