| 复合磁性纳米粒子的合成和特性研究 |
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| 引用本文： | 李曦,张兰英,黄坤,熊锃.复合磁性纳米粒子的合成和特性研究[J].武汉理工大学学报,2011(6):9-11. |
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| 作者姓名： | 李曦 张兰英 黄坤 熊锃 |
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| 作者单位： | 武汉理工大学理学院; |
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| 基金项目： | 教育部留学回国人员科研启动基金(2009Jj0075); 湖北省自然科学基金(2008CHB415) |
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| 摘 要： | 通过在磁性纳米粒子表面修饰柠檬酸得到了分散性良好的水基磁流体,为了研究磁性纳米粒子在生物医药上的应用,通过Stober法合成了Fe3O4/SiO2复合粒子。透射电镜(TEM)和红外光谱仪(IR)研究表明,SiO2成功地包裹在Fe3O4粒子表面,且复合粒子的分散性好,粒径均匀。振动样品磁强计测试表明磁性复合粒子仍然具有较强磁性。
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| 关 键 词： | 磁性纳米粒子 磁性复合粒子 表面修饰 磁流体 |
Synthesis and Property Investigation of Magnetic Nanocomposite |
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| LI Xi,ZHANG Lan-ying,HUANG Kun,XIONG Zeng.Synthesis and Property Investigation of Magnetic Nanocomposite[J].Journal of Wuhan University of Technology,2011(6):9-11. |
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| Authors: | LI Xi ZHANG Lan-ying HUANG Kun XIONG Zeng |
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| Affiliation: | LI Xi,ZHANG Lan-ying,HUANG Kun,XIONG Zeng(School of Science,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | In this paper,magnetic nanoparticles modified by citric acid were synthesized and well dispersed ferrofluids were obtained.In order to study the application of magnetic nanoparticles in biomedical fields,we adopted stober methods to synthesize the Fe3O4/SiO2 nanocomposite,transmission electron microscopy(TEM) and infrared spectroscopy(IR) showed that silicon dioxide has successfully been grafted onto the surface of Fe3O4 particles,and the nanocomposite presents good dispersion and uniform size distribution. |
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| Keywords: | magnetic nanoparticle nanocomposite surface modification ferrofluid |
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