Fe3O4 coupled BiOCl: A highly efficient magnetic photocatalyst

被引：176

作者：

Zhang, Ling ^{[1
]}

Wang, Wenzhong ^{[1
]}

Zhou, Lin ^{[1
]}

Shang, Meng ^{[1
]}

Sun, Songmei ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab High Performance Ceram & Superfine, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2009年 / 90卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

Photocatalyst; Magnetic nanoparticles; BiOCl; Coupled structure; TIO2; NANOCRYSTALS; SEMICONDUCTORS; NANOCOMPOSITES; NANOPARTICLES; POLLUTANTS; PARTICLES; OXIDATION; CATALYSTS; SURFACE;

D O I：

10.1016/j.apcatb.2009.04.005

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 magnetic photocatalyst, Fe3O4/BiOCl nanocomposite, was prepared and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and high-resolution TEM (HRTEM), physical property measurement system (PPMS). It was found that Fe3O4/BiOCl was an effective photocatalyst to degrade the organic dyes. Compared with the conventional core-shell magnetic photocatalysts, such as Fe3O4/TiO2 system which dramatically lost their intrinsically photocatalytic activity due to the introduction of the magnetic core, the as-synthesized Fe3O4/BiOCl reserved as high photocatalytic activity as that of BiOCl. The high catalytic activity possibly involved in a coupled structure and the special interfaces, that is, the probability of combination of the carriers could be reduced in this system. Moreover, the superparamagnetic Fe3O4/BiOCl can be not only easily recycled but also fluidized by applying an external magnetic field. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：458 / 462

页数：5

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