Visible light photodegradation of methylene blue by AgBr-TiO2/SiO2@Fe3O4 magnetic photocatalysts

被引：27
|
作者：
Liu, Jianjun [1 ]
Zuo, Shengli [1 ]
Yu, Liming [1 ]
Yu, Yingchun [1 ]
Li, Baoshan [1 ]
Chen, Pengwan [2 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
[2] Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China
来源：
PARTICUOLOGY | 2013年 / 11卷 / 06期
基金：
中国国家自然科学基金;
关键词：
AgBr-TiO2/SiO2@Fe3O4; Magnetic photocatalyst; Visible light; Methylene blue; DESTRUCTION; AGBR/TIO2; TIO2;
D O I：
10.1016/j.partic.2013.01.006
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Visible photoactive AgBr/TiO2 was immobilized on a SiO2@Fe3O4 magnetic support by solvothermal and sal-gel methods to form a AgEr-TiO2/SiO2@Fe3O4 magnetic photocatalyst. Samples were characterized by X-ray diffraction, high-resolution transmission electron microscopy and magnetometry. Hetero-structured AgBr/TiO2 was well seeded on the shell-core SiO2@Fe3O4 structure. The AgBr-TiO2/SiO2@Fe3O4 magnetic photocatalyst exhibited high photocatalytic activity in the degradation of methylene blue under visible light. The photocatalyst was superparamagnetic, which is beneficial for facile magnetic separation. (C) 2013 Published by Elsevier B.V. on behalf of Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences.
引用
收藏
页码：728 / 731
页数：4
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