| P(St-co-MMA)微球表面包覆磁性氧化石墨烯的制备与表征 |
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| 引用本文： | 马应霞,金朋生,雷文娟,李向前,喇培清,杜雪岩.P(St-co-MMA)微球表面包覆磁性氧化石墨烯的制备与表征[J].医学教育探索,2016,29(2):182-187. |
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| 作者姓名： | 马应霞 金朋生 雷文娟 李向前 喇培清 杜雪岩 |
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| 作者单位： | 兰州理工大学材料科学与工程学院, 有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050,兰州理工大学材料科学与工程学院, 有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050,兰州理工大学材料科学与工程学院, 有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050,兰州理工大学材料科学与工程学院, 有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050,兰州理工大学材料科学与工程学院, 有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050,兰州理工大学材料科学与工程学院, 有色金属先进加工与再利用省部共建国家重点实验室, 兰州 730050 |
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| 基金项目： | 国家自然科学基金(51403091);中国博士后科学基金(2015M572616) |
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| 摘 要： | 以单分散的苯乙烯-甲基丙烯酸甲酯共聚物(P(St-co-MMA))微球为载体,FeSO4·7H2O和FeCl3·6H2O为铁源,NaOH为沉淀剂,在氧化石墨烯(GO)存在下,利用反相共沉淀法通过原位复合技术在P(St-co-MMA)微球表面包覆磁性氧化石墨烯(P(St-co-MMA)/Fe3O4/GO)。通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、傅里叶变换红外光谱仪(FT-IR)、X射线衍射仪(XRD)、振动样品磁强计(VSM)和氮吸附-脱附等温线对P(St-co-MMA)/Fe3O4/GO样品的结构和性能进行表征分析。研究结果表明:纳米级的磁性氧化石墨烯成功地负载在了微米级的共聚物P(St-co-MMA)表面,所制备的P(St-co-MMA)/Fe3O4/GO微纳米复合物平均孔径为14.55 nm,孔体积为0.204 2 cm3/g,比表面积为56.14 m2/g。该复合物具有超顺磁性和良好的磁响应性,能够满足磁分离的要求。
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| 关 键 词： | 苯乙烯-甲基丙烯酸甲酯共聚物微球 磁性氧化石墨烯 微纳米复合物 超顺磁性 |
| 收稿时间： | 2016/4/18 0:00:00 |
Preparation and Characterization of P(St-co-MMA) Microspheres Surface-Coated Magnetic Graphene Oxide |
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| MA Ying-xi,JIN Peng-sheng,LEI Wen-juan,LI Xiang-qian,LA Pei-qing and DU Xue-yan.Preparation and Characterization of P(St-co-MMA) Microspheres Surface-Coated Magnetic Graphene Oxide[J].Researches in Medical Education,2016,29(2):182-187. |
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| Authors: | MA Ying-xi JIN Peng-sheng LEI Wen-juan LI Xiang-qian LA Pei-qing and DU Xue-yan |
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| Institution: | State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China,State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China and State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China |
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| Abstract: | P(St-co-MMA) microspheres surface-coated magnetic graphene oxide (P(St-co-MMA)/Fe3O4/GO) were synthesized by an inverse coprecipitation in-situ compound technology using monodispersed P(St-co-MMA) microspheres as carriers,FeCl3·6H2O and FeSO4·7H2O as precursors,NaOH as precipitant in the presence of GO.The morphology,crystal structure,chemical structure,Brunauer-Emmett-Teller(BET) specific surface area and magnetic properties of the P(St-co-MMA)/Fe3O4/GO composites were characterized by Scanning Electron Microscopy (SEM),Transmission Electron Microscopy (TEM),X-ray powder diffractometer (XRD),Fourier Transform Infrared spectroscopy (FT-IR),nitrogen adsorption-desorption isotherms and Vibrating Sample Magnetometer (VSM).Results showed that the nano-size magnetic graphene oxide was successfully coated on the surface of the micro-sized P(St-co-MMA) copolymers.The average pore width,the volume of pores and the BET specific surface area of P(St-co-MMA)/Fe3O4/GO were 14.55 nm,0.204 2 cm3/g and 56.14 m2/g,respectively.The P(St-co-MMA)/Fe3O4/GO micro-nano composites were superparamagnetic and had good magnetic responsibility,which could meet the demand of magnetic separation. |
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| Keywords: | P(St-co-MMA) microspheres magnetic graphene oxide micro-nano composites superparamagnetic |
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