有机分子修饰的Fe_(3)O_(4)@SiO_(2)@GO纳米复合材料的合成表征  

Synthesis and Characterization of Organic Molecule Modified Fe_(3)O_(4)@SiO_(2)@GO Nanocomposites

作　　者：王林玉 何志芳 刘永珺 席改卿 Wang Linyu;He Zhifang;Liu Yongjun;Xi Gaiqing(College of Chemical Engineering and Materials,Hebei Key Laboratory of Heterocyclic Compounds,Handan University,Handan 056005,China)

机构地区：[1]邯郸学院化学化工与材料学院,河北省杂环化合物重点实验室,河北邯郸056005

出　　处：《广东化工》2022年第6期99-101,共3页Guangdong Chemical Industry

基　　金：河北省高等学校科学研究项目(BJ2020209);邯郸市科技专项计划项目(19422111001-10);邯郸市教育科学研究“十四五”规划课题(21GR005);邯郸学院高等教育教学改革研究与实践项目(No:2019XJJG001)。

摘　　要：本论文采用氧化沉淀法制备纳米Fe_(3)O_(4)粒子,将正硅酸乙酯处理磁粒子,获得Fe_(3)O_(4)@SiO_(2)纳米粒子,然后用3-氨丙基三乙氧基硅烷(APTES)对纳米复合粒子进行改性,获得表面带有-NH2的磁性纳米粒子,然后将氧化石墨烯(GO)涂覆在经过改性的纳米复合磁粒子上,获得修饰有不同有机分子的复合纳米磁粒子。最后运用了傅立叶红外、XRD、元素分析表征对其进行分析。结果表明,成功获得修饰有不同有机分子的Fe_(3)O_(4)@SiO_(2)@GO复合纳米磁粒子。In this thesis,nano-Fe_(3)O_(4) particles were prepared by oxidation precipitation method.The magnetic particles were treated with ethyl orthosilicate to obtain Fe_(3)O_(4)@SiO_(2) nanoparticles,and then the nano-composite particles were modified with 3-aminopropyltriethoxysilane(APTES).Magnetic nanoparticles with-NH_(2) on the surface were obtained,and then graphene oxide(GO)was coated on the modified nano-composite magnetic particles,composite nano magnetic particles modified with different organic molecules were prepared.At last,Fourier infrared,XRD and Elemental analysis were used to analyze it.The results show that Fe_(3)O_(4)@SiO_(2)@GO omposite modified with different organic molecules are successfully obtained.

关 键 词：磁性纳米粒子 氧化石墨烯(GO) 磁分离 氨基化 羧基化 

分 类 号：TQ[化学工程]