本文已被：浏览 1131次 下载 941次
投稿时间：2016-02-29
投稿时间：2016-02-29
中文摘要: 利用多元醇高温热解法和溶液氧化法制备超顺磁四氧化三铁聚多巴胺核-壳结构纳米粒子(Fe3O4@PDA)。采用 X 射线衍射(XRD)、透射电子显微镜(TEM)、动态光散射(DLS)、傅里叶转换红外光谱(FT-IR)和热重分析(TG)等对 Fe3O4@PDA 的结构、形貌和组成进行表征。采用综合物性测试系统(PPMS)对样品的磁性能进行表征。结果表明:Fe3O4@PDA 的尺寸可以通过氨水与多巴胺的物质的量之比和反应时间进行调控;当Fe3O4@PDA 中Fe3O4的质量分数约为5%时,具有超顺磁性,磁饱和强度为3.8 emu/g,比理论值高出36%。
Abstract:Superparamagnetic Fe3O4@PDA core-shell structure nanoparticles were synthesized via polyol thermo decomposition and solution oxidation.The structure,morphology and component were characterized by X-Ray Diffraction (XRD),Transmission Electron Microscopy (TEM),Fourier Transform Infrared Spectroscopy (FT-IR),and Thermogravimetric Analysis (TG),etc.The magnetic properties of the samples were measured using physical properties measurement system (PPMS).Results showed that the size of Fe3O4@PDA could be controlled by adjusting the molar ratio of ammonia to DA and reaction time.When the mass fraction of Fe3O4 in Fe3O4@PDA was about 5%,Fe3O4@PDA was superparamagnetic and the saturation magnetization was 3.8 emu/g,which was 36% higher than the theoretical value.
文章编号： 中图分类号： 文献标志码：
基金项目:国家自然科学基金(20974061)
| 作者 | 单位 | |
| 骆东升 | 上海交通大学化学化工学院, 上海 200240 | |
| 王新灵 | 上海交通大学化学化工学院, 上海 200240 | xlwang@sjtu.edu.cn |
引用本文：
骆东升,王新灵.超顺磁Fe3O4@PDA核-壳结构纳米粒子的制备及表征[J].功能高分子学报,2016,29(2):172-181.
LUO Dong-sheng,WANG Xin-ling.Synthesis and Characterization of Superparamagnetic Fe3O4@PDA Core-Shell Structure Nanoparticles[J].Journal of Functional Polymers,2016,29(2):172-181.
骆东升,王新灵.超顺磁Fe3O4@PDA核-壳结构纳米粒子的制备及表征[J].功能高分子学报,2016,29(2):172-181.
LUO Dong-sheng,WANG Xin-ling.Synthesis and Characterization of Superparamagnetic Fe3O4@PDA Core-Shell Structure Nanoparticles[J].Journal of Functional Polymers,2016,29(2):172-181.
