Novel CaBi6O10 photocatalyst for methylene blue degradation under visible light irradiation

被引：70
作者：
Wang, Yongjiao [2 ]
He, Yiming [1 ]
Li, Tingting [2 ]
Cai, Jun [1 ]
Luo, Mengfei [2 ]
Zhao, Leihong [2 ]
机构：
[1] Zhejiang Normal Univ, Dept Mat Phys, Jinhua 321004, Peoples R China
[2] Zhejiang Normal Univ, Inst Phys Chem, Zhejiang Key Lab React Chem Solid Surfaces, Jinhua 321004, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2012年 / 18卷
基金：
中国国家自然科学基金;
关键词：
Photocatalysis; CaBi6O10; Visible light responsive; Hybridized energy band; ORGANIC CONTAMINANTS; WATER DECOMPOSITION;
D O I：
10.1016/j.catcom.2011.12.011
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：
A novel photocatalyst CaBi6O10 with flower-like morphology was prepared by a simple impregnation-calcination method and investigated by techniques such as XRD, Raman, SEM, BET, DRS, and density function theory (OFT). Results reveal that CaBi6O10 is responsive to visible light below 537 nm (E-g=2.31 eV). In addition, CaBi6O10 presents broader conduction band than Bi2O3, which favors the mobility of photo-generated electrons in CaBi6O10 and contributes positively to the photocatalytic reaction. The good photoabsorption and the special electron structure were considered as the origin of the high activity of CaBi6O10 in methylene blue photodegradation. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：161 / 164
页数：4
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