| 聚乙烯吡咯烷酮包裹核壳型Fe_3O_4/Au纳米粒子的制备 |
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| 引用本文： | 张文星,吴君华,刘红玲.聚乙烯吡咯烷酮包裹核壳型Fe_3O_4/Au纳米粒子的制备[J].化学研究,2009,20(4):20-23. |
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| 作者姓名： | 张文星 吴君华 刘红玲 |
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| 作者单位： | 1. 河南大学化学化工学院,河南,开封,475004
2. 韩国高丽大学工程技术研究所,韩国,首尔,136-713 |
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| 基金项目： | 河南大学自然科学基金项目，河南省教育厅项目，河南省科技厅项目 |
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| 摘 要： | 采用改进的Polyol合成法,以聚乙烯吡咯烷酮（PVP）为表面活性剂制备PVP包裹的单分散的Fe3O4/Au纳米粒子.透射电镜（TEM）和X射线衍射（XRD）分析证实了Fe3O4/Au的核壳型纳米结构,并确定了纳米粒子的尺寸大小和分布.UV-Vis测定显示了所制备的纳米粒子具有光学活性,而振动样品磁强计（VSM）测量显示纳米粒子具有优异的磁化率.
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| 关 键 词： | 聚乙烯吡咯烷酮(PVP) 包裹 核壳型纳米粒子 Fe3O4/Au 磁性 光学活性 |
Preparation of Polyvinylpyrrolidone Coated Core-shell Fe3 O4/Au Nanoparticles |
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| ZHANG Wen-xing,WU Jun-hua,LIU Hong-ling.Preparation of Polyvinylpyrrolidone Coated Core-shell Fe3 O4/Au Nanoparticles[J].Chemical Research,2009,20(4):20-23. |
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| Authors: | ZHANG Wen-xing WU Jun-hua LIU Hong-ling |
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| Institution: | ZHANG Wen-xing, WU Jun-hua, LIU Hong-ling( 1. College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China; 2. Research batitute of Engineering and Technology, Korea University, Seoul 136 - 713, Korea) |
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| Abstract: | Polyvinylpyrrolidone(PVP)-coated monodispersed core-shell Fe3O4/Au magnetic-optic multifunctional nanoparticles were synthesized in the presence of PVP polymer as the surfactant by using a modified polyol process.The nanoparticles were investigated by means of TEM,XRD,VSM and UV-Vis.The formation of the core shell nanostructure was discussed.The size distribution of the nanoparticles was determined.The surface plasmon characteristic and magnetic properties of the Au nanoshell were evaluated.It was found that the titled nanoparticles had excellent magnetic susceptibility. |
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| Keywords: | Fe3O4/Au |
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