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.

引用

页码：185 / 190

页数：6

共 47 条

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