Preparation and characterization of multi-functional CoFe2O4-ZnO nanocomposites

被引：26

作者：

Zhang, Guoxin ^{[1
]}

Xu, Wanbang ^{[1
]}

Li, Zheng ^{[1
]}

Hu, Weiqing ^{[1
]}

Wang, Yongxian ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Nanocomposites; Photoluminescence; Photocatalysis; Magnetism; Collosol; Diffusion layer; CoFe2O4; ZnO; OPTICAL-PROPERTIES; MAGNETIC-PROPERTIES; ZNO; DECOMPOSITION; NANOPARTICLES;

D O I：

10.1016/j.jmmm.2009.02.057

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Multi-functional magnetic, photoluminescent and photocatalytic CoFe2O4-ZnO nanocomposites were successfully synthesized by a collosol method. The average diameter of the prepared CoFe2O4-ZnO nanocomposites was 30 +/- 5 nm, and a diffusion layer was formed to link CoFe2O4 and ZnO. The saturation magnetization of the CoFe2O4-ZnO nanocomposites was 8.99 emu/g. Generation of ZnO from Zn(OH)(2) collosol was nearly complete after thermal decomposition at about 380 degrees C. A photoluminescence emission peak was observed at 443 nm when excitated at 350 nm. Degradation of methyl orange is performed by CoFe2O4-ZnO nanocomposites under ultraviolet radiation, with a degradation rate of up to 93.9%. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1424 / 1427

页数：4

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