Visible-light Photocatalytic Activity of BiOCl/Bi3O4Cl Nanocomposites

被引：43

作者：

Gao, Bifen ^{[1
]}

Chakraborty, Ashok Kumar ^{[1
]}

Yang, Ji Min ^{[2
]}

Lee, Wan In ^{[1
]}

机构：

[1] Inha Univ, Dept Chem, Inchon 402751, South Korea

[2] Indian Springs Sch, Indian Springs, AL 35124 USA

来源：

BULLETIN OF THE KOREAN CHEMICAL SOCIETY | 2010年 / 31卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

Photocatalyst; Visible light; BiOCl; Bi3O4Cl; Heterojunction; EFFICIENT DECOMPOSITION; TIO2; WATER; HETEROJUNCTION; TEMPERATURE; IRRADIATION; BEHAVIOR; BIVO4;

D O I：

10.5012/bkcs.2010.31.7.1941

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The heterojunction structures of BiOCl/Bi3O4Cl, exhibiting considerable visible-light photocatalytic efficiency, were prepared by a simple wet-chemical process at ambient condition. The prepared nanocomposites were characterized by XRD, TEM, and UV-visible diffuse reflectance spectra. Under visible light (lambda >= 420 nm) irradiation, BiOCl/Bi3O4Cl exhibited an enhanced photocatalytic activity in decomposing 2-propanol (IP) in gas phase and salicylic acid (SA) in aqueous solution, whereas the bare BiOCl and Bi3O4Cl showed negligible activities. It is deduced that the remarkable visible-light photocatalytic activity of the BiOCl/Bi3O4Cl originates from the hole (h(+)) transfer between VB of the Bi3O4Cl and BiOCl semiconductors.

引用

页码：1941 / 1944

页数：4

共 26 条

[1] Photocatalytic activity of structured mesoporous TiO2 materials [J].