Surface organic modification of Fe3O4 magnetic nanoparticles

被引：0

作者：

Sheng Cui

Xiaodong Shen

Benlan Lin

Guodong Jiang

Weihua Zhang

机构：

[1] Nanjing University of Technology,College of Material Science and Technology

来源：

Journal of Wuhan University of Technology-Mater. Sci. Ed. | 2008年 / 23卷

关键词：

Fe; O; nanoparticles; KH570; surface organic modification; chemical adsorb; dispersivity;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The surface organic modification of Fe3O4 nanoparticles with silane coupling reagent KH570 was studied. The modified and unmodified nanoparticles were characterized by FT-IR, XPS and TEM. The spectra of FT-IR and XPS revealed that KH570 was coated onto the surface of Fe3O4 nanoparticles to get Fe-OSi bond and an organic coating layer also was formed. Fe3O4 nanoparticles were spheres partly with mean size of 18.8 nm studied by TEM, which was consistent with the result 17.9 nm calculated by Scherrer’s equation. KH570 was adsorbed on surface and formed chemistry bond to be steric hindrance repulsion which prevented nanoparticles from reuniting. Then glycol-based Fe3O4 magnetic liquids dispersed stably was gained.

引用

页码：436 / 439

页数：3

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