Photocatalytic property of bismuth titanate Bi12TiO20 crystals

被引：0
|
作者：
Yao, WF [1 ]
Wang, H
Xu, XH
Cheng, XF
Huang, J
Shang, SX
Yang, XN
Wang, M
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China
[2] Shandong Univ, Dept Environm Engn, Jinan 250100, Shandong, Peoples R China
来源：
APPLIED CATALYSIS A-GENERAL | 2003年 / 243卷 / 01期
关键词：
photocatalyst; sillenite; titanate; CSD;
D O I：
暂无
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：
Bi(12)TiO(20) crystals with sillenite structures were prepared by a chemical solution decomposition (CSD) method. The band gap of Bi(12)TiO(20) crystals was estimated to be about 2.4 eV from the onset of UV-Vis absorption spectra of the photocatalyst. The energy band of Bi(12)TiO(20) is assumed to between the top of Bi(3+) 6s band and the bottom of the Ti 3d band. The photocatalyst based on Bi(12)TiO(20) crystals for photo-decolorization of methyl orange had been examined first. Bi(12)TiO(20) crystals show high photocatalystic activity to photo-decolorization 10 ppm methyl orange solution in 1.5 h. Bi-O polyhedra in Bi(12)TiO(20) crystals were assumed to facilitate the photocatalystic activity of the catalysts. (C) 2002 Elsevier Science B.V. All rights reserved.
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页码：185 / 190
页数：6
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