[1]邓秀珍,阎玺庆,苑佳佳,等.表面改性对磁性纳米粒分散性的影响[J].新乡医学院学报,2016,33(2):101-104.[doi:10.7683/xxyxyxb.2016.02.005]
　DENG Xiu-zhen,YAN Xi-qing,YUAN Jia-jia,et al.Influence of surface modification on dispersibility of magnetic nanoparticles[J].Journal of Xinxiang Medical University,2016,33(2):101-104.[doi:10.7683/xxyxyxb.2016.02.005]
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表面改性对磁性纳米粒分散性的影响
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《新乡医学院学报》[ISSN:1004-7239/CN:41-1186/R]

卷:
33
期数:
2016年2
页码:
101-104
栏目:
基础研究
出版日期:
2016-02-05

文章信息/Info

Title:
Influence of surface modification on dispersibility of magnetic nanoparticles
作者:
邓秀珍1; 阎玺庆1; 苑佳佳2; 史永利1; 孙祥德1
（1.新乡医学院药学院，河南　新乡　453003；2.江南大学无锡医学院，江苏　无锡　214122）
Author(s):
DENG Xiu-zhen1; YAN Xi-qing1; YUAN Jia-jia2; SHI Yong-li1; SUN Xiang-de1
（School of Pharmacy，Xinxiang Medical University，Xinxiang 453003，Henan Province，China；2.Wuxi Medical School，Jiangnan University，Wuxi 214122，Jiangsu Province，China）
关键词:
磁性纳米粒; 高热分解法; 共沉淀法; 分散度
Keywords:
magnetic nanoparticles; high thermal decomposition; coprecipitation; dispersibility
分类号:
O482.52
DOI:
10.7683/xxyxyxb.2016.02.005
文献标志码:
A
摘要:
目的　对磁性纳米粒进行表面改性，观察其在不同溶剂中的分散性。方法　通过高热分解法和共沉淀法分别合成以油酸及枸橼酸为表面活性剂的磁性纳米粒（Fe3O4NPs），利用X-射线衍射仪、透射电子显微镜、傅里叶变换红外光谱仪等分析手段对其性质进行表征，在常用的极性及非极性溶剂中考察其分散性。结果　油酸和枸橼酸做表面活性剂得到的Fe3O4NPs粒径分别为8 nm和20 nm；油酸做表面活性剂得到的Fe3O4NPs可在正己烷等常用溶剂中稳定分散，而枸橼酸做表面活性剂得到的Fe3O4NPs可在水等极性溶剂中分散。结论　得到了非极性溶剂中分散良好的油酸纳米粒和在极性溶剂中易于分散的枸橼酸纳米粒。
Abstract:
Objective　To surface modify the magnetic nanoparticles(MNPs) in order to investigate the dispersibility of MNPs in different solvents.Methods　Oleic acid and citric acid modified magnetic Fe3O4NPs were fabricated via high thermal decomposition and coprecipitation methods，respectively.X-ray diffraction，transmission electron microscopy and fourier infrared spectroscopy were used to confirm the success preparation of final MNPs.Their dispersibility in polar and nonpolar solvents was also investigated.Results　The average diameter of oleic acid and citric acid modified magnetic Fe3O4NPs was 8 nm and 20 nm，respectively.The Fe3O4NPs modified with oleic acid could be well dispersed in nonpolar solvents such as normal hexane，while those MNPs modified by citric acid could be dispersed in the polar solvents such as water.Conclusion　Two kinds of magnetic Fe3O4NPs modified with oleic acid and citric acid are successfully fabricated and showing good dispersibility in nonpolar and polar solvents，respectively.

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更新日期/Last Update: 2016-02-05