EPR study of chromium-doped porous titanium dioxide

被引：5
|
作者：
Pentegov, I. S. [1 ]
Konstantinova, E. A. [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia
来源：
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 8, NO 6 | 2011年 / 8卷 / 06期
关键词：
titanium dioxide; chromium-doped; photocatalysis; spin centers; electron paramagnetic resonance;
D O I：
10.1002/pssc.201000084
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
EPR study of chromium-doped porous titanium dioxide samples has been carried out both in dark and under visible light illumination. Cr+3 spin centers located in subsurface layer and at the surface of the samples and O-2(-) radicals were discovered in titanium dioxide and their dynamics under illumination of the samples was investigated. The number of Cr+3 spin centers correlates with content of chromium in the samples. Obtained data can be useful for development of chromium based TiO2 photocatalysts. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：1954 / 1956
页数：3
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