Preparation and Magnetic Properties of Co-Doped Fe2O3-SBA-15 Magnetic Nanomaterials

被引：0
|
作者：
Li Liang [1 ,2 ]
Jin Hongxiao [2 ]
Jin Dingfeng [2 ]
Lu Qin [2 ]
Sun Lina [2 ]
Tang Quan [2 ]
Chen Min [2 ]
Ge Hongliang [2 ]
Wang Xinqing [2 ]
机构：
[1] China Jiliang Univ, Sch Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
[2] China Jiliang Univ, Zhejiang Prov Key Lab Magnetism, Hangzhou 310018, Zhejiang, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2010年 / 39卷
关键词：
SBA-15; Co3O4; magnetic property; ORDERED MESOPOROUS SILICA; GAMMA-FE2O3; NANOPARTICLES; MOLECULAR-SIEVES; IN-SITU; SBA-15; NANOCOMPOSITE; FABRICATION; PARTICLES; SPHERES;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Co-doped Fe2O3-SBA-15 mesoporous magnetic nanomaterials were synthesized by sol-gel/hydro-thermal method and immergence method, and then X-ray diffraction (XRD) and vibrating sample magnetometer (VSM) were introduced to characterize and test the microstructure and the magnetic properties of the as-prepared SBA-15 samples. The results show that Fe in the form of Fe2O3 nanoparticles existed in the frame and Co in the form of Co3O4 nanoparticles presented in the mesopores of SBA-15 mesoporous molecule sieves. Thereby, a new nanocomposite Co3O4/Fe2O3-SBA-15 magnetic material was obtained. The magnetic results indicate the as-prepared SBA-15 mesoporous materials presented ferromagnetism, and the magnetic properties increased with the doped content of Fe2O3 and Co3O4 nanoparticles, because the exchange coupling interaction between magnetic nanoparticles enhanced the magnetic properties.
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页码：479 / 482
页数：4
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