Photocatalytic degradation of PCP-Na over BiOI nanosheets under simulated sunlight irradiation

被引:119
作者
Chang, Xiaofeng [1 ,2 ]
Huang, Jun [1 ]
Tan, Quanyin [1 ]
Wang, Mo [1 ]
Ji, Guangbin [2 ]
Deng, Shubo [1 ]
Yu, Gang [1 ]
机构
[1] Tsinghua Univ, Dept Environm Sci & Engn, POPs Res Ctr, Beijing 100084, Peoples R China
[2] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanomat Res Inst, Nanjing 210016, Peoples R China
基金
中国国家自然科学基金;
关键词
BiOI; Photocatalysis; NaBiO3; Sodium pentachlorophenate (PCP-Na); TIO2; PENTACHLOROPHENOL; WATER;
D O I
10.1016/j.catcom.2009.06.023
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
The photocatalytic removal of sodium pentachlorophenate (PCP-Na) over BiOI nanosheets under simulated solar light irradiation has been studied. BiOI nanosheets exhibited an excellent photocatalytic activity to remove PCP-Na from aqueous solution driven by simulated light. The photocatalytic reaction over BiOI nanosheets followed the pseudo first-order reaction, owning to its weak adsorption behavior to PCP-Na molecules and low initial PCP-Na concentration. Finally, the photocatalytic mechanism was investigated initially on the basis of the experimental result and band edge potential analysis. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:1957 / 1961
页数:5
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