| 磁性Fe3O4/Pt复合纳米粒子的超声制备与表征 |
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| 引用本文： | 贺全国,吴 伟,曾 蕾. 磁性Fe3O4/Pt复合纳米粒子的超声制备与表征[J]. 稀有金属材料与工程, 2011, 40(2): 311-315 |
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| 作者姓名： | 贺全国 吴 伟 曾 蕾 |
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| 作者单位： | 湖南工业大学,湖南株洲,412007 |
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| 基金项目： | 国家自然科学基金(20505020，60871007)；湖南省教育厅重点项目(08A013)资助 |
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| 摘 要： | 超声条件下,在乙醇分散的3-氨丙基三乙氧基硅烷(APTES)功能化的磁性Fe3O4纳米粒子和氯铂酸的混合溶液中,滴加水合肼成功地制备了磁性Fe3O4/Pt复合纳米粒子。采用紫外吸收可见光谱(UV-Vis),电子能谱仪(EDS),透射电子显微镜(TEM),光电子能谱(XPS),超导量子干涉仪(SQUID)等方法对复合粒子的形态、结构、组成以及磁学性质进行了表征。结果表明:在此条件下制得的复合粒子粒度在50nm左右,室温下磁化强度可达17.2(A·m2)/kg。
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| 关 键 词： | Fe3O4/Pt磁性纳米粒子 超声化学合成 表面修饰 磁学性能 复合纳米材料 |
| 收稿时间： | 2010-03-21 |
Sonochemical Preparation and Characterization of Magnetic Fe3O4/Pt Composite Nanoparticles |
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| He Quanguo,Wu Wei and Zeng Lei. Sonochemical Preparation and Characterization of Magnetic Fe3O4/Pt Composite Nanoparticles[J]. Rare Metal Materials and Engineering, 2011, 40(2): 311-315 |
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| Authors: | He Quanguo Wu Wei Zeng Lei |
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| Affiliation: | Hunan University of Technology, Zhuzhou 412007, China |
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| Abstract: | Magnetic composite nanoparticles Fe3O4/Pt were prepared via ultrasonic irradiation to the mixed solution of hexachloroplatinum acid hydrate solution and (3-aminopropyl)triethoxysilane (APTES)-coated Fe3O4 nanoparticles and subsequent dropping addition of hydrozine hydrate. The morphology, microstructure, composition and magnetic properties of the Fe3O4/Pt nanoparticles were characterized by ultraviolet-visible spectroscopy (UV-Vis), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and superconducting quantum interference device (SQUID) magnetometry. Results show that Fe3O4/Pt nanoparticles obtained under the conditions possess saturation magnetization intensity of about 17.2 (A·m2)/kg, and their average diameter is about 50 nm. |
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| Keywords: | Fe3O4/Pt magnetic nanoparticles sonochemical synthesis surface modification magnetic property nanocomposites |
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