Magnetic properties of SBA-15 mesoporous nanocomposites with CoFe2O4 nanoparticles

被引：22

作者：

Wang, Xinqing ^{[1
]}

Chen, Min ^{[1
]}

Li, Liang ^{[1
]}

Jin, Dingfeng ^{[1
]}

Jin, Hongxiao ^{[1
]}

Ge, Hongliang ^{[1
]}

机构：

[1] China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China

来源：

MATERIALS LETTERS | 2010年 / 64卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Porosity; Nanocomposites; Magnetic materials; SILICA; FE;

D O I：

10.1016/j.matlet.2009.12.045

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel mesoporous nanocomposite based on SBA-15 with CoFe2O4 and Fe2O3 magnetic nanoparticles was prepared via the hydrothermal treatment and impregnation method. We showed that Fe2O3 nanoparticles were anchored in the frame and CoFe2O4 nanoparticles were confined in the mesopores of SBA-15 in the prepared nanocomposite. Our results indicated that the magnetic properties could be adjusted by the addition of CoFe2O4 and Fe2O3 magnetic nanoparticles. The presence of couple exchange interaction was confirmed with Kelly-Hankel (delta M) curves, which enhanced the magnetic properties of the CoFe2O4/Fe2O3-SBA-15 mesoporous nanocomposite. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：708 / 710

页数：3

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