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Au/Fe3O4磁性纳米粒子的合成及表征
引用本文:刘家良,李娜. Au/Fe3O4磁性纳米粒子的合成及表征[J]. 材料导报, 2018, 32(Z1): 121-123
作者姓名:刘家良  李娜
作者单位:成都理工大学材料与化学化工学院;成都理工大学能源学院
基金项目:国家自然科学基金青年基金项目(41502139)
摘    要:报道了一种合成具有巯基官能团修饰的Au/Fe_3O_4磁性纳米粒子的新方法。采用共沉淀法制备Fe_3O_4磁性纳米颗粒,并在此基础上用聚(烯丙胺)溶液还原HAuCl4,制得Au/Fe_3O_4磁性核壳纳米颗粒,再用3-巯基-1-丙磺酸钠修饰Au/Fe_3O_4磁性纳米粒子,最后得到具有巯基官能团稳定的Au/Fe_3O_4磁性纳米粒子。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线能谱仪(EDS)、X射线衍射仪(XRD)、X射线光电子能谱(XPS)、振动样品磁强计(VSM)分别对产物的微观结构及磁性特征进行表征。

关 键 词:Au/Fe3O4磁性纳米粒子 核壳结构 表征 官能团

Synthesis and Characterization of Au/Fe3O4 Magnetic Nanoparticles
LIU Jialiang and LI Na. Synthesis and Characterization of Au/Fe3O4 Magnetic Nanoparticles[J]. Materials Review, 2018, 32(Z1): 121-123
Authors:LIU Jialiang and LI Na
Affiliation:College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059 and Energy Institute, Chengdu University of Technology, Chengdu 610059
Abstract:This paper reports a new method to synthesize a new kind of Au/Fe3O4 magnetic nanoparticle with thiol functional group modification.Fe3O4 magnetic nanoparticles were prepared by co-precipitation method, and then Au/Fe3O4 magnetic core-shell nanoparticles were prepared by reducing HAuCl4 with poly(allylamine) solution, and then modified with 3-mercapto-1-propanesulfonic acid sodium salt to modify the magnetic properties of Au/Fe3O4 nanoparticles. Finally, a stable Au/Fe3O4 magnetic nanoparticle with thiol functional groups was obtained.The synthesized nano-particles were characterized by scanning electron microscopy(SEM),transmission electron microscopy (TEM), energy dispersive spectrometer (EDS), X-ray diffraction.(XRD), X-ray photoelectron spectroscopy(XPS) and vibration sample magnetometer(VSM).
Keywords:Au/Fe3O4 magnetic nanoparticles   core-shell structure   characterization   functional groups
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