Synthesis, characterization and size control of zerovalent iron nanoparticles anchored on montmorillonite
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- 作者：MingDe Fan (1) (2)
Peng Yuan (1)
TianHu Chen (3)
HongPing He (1)
AiHua Yuan (4)
KangMin Chen (5)
JianXi Zhu (1)
Dong Liu (1) (6) - 关键词：zerovalent iron nanoparticles ; montmorillonite ; core ; shell structured ; chemical solution reduction
- 刊名：Chinese Science Bulletin
- 出版年：2010
- 出版时间：April 2010
- 年：2010
- 卷：55
- 期：11
- 页码：1092-1099
- 全文大小：2347KB
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Peng Yuan (1)
TianHu Chen (3)
HongPing He (1)
AiHua Yuan (4)
KangMin Chen (5)
JianXi Zhu (1)
Dong Liu (1) (6)
1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
2. College of Environment and Resources, Inner Mongolia University, Hohhot, 010021, China
3. School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, China
4. School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China
5. School of Materials Science an Engineering, Jiangsu University, Zhenjian, 212003, China
6. Graduate School of the Chinese Academy of Sciences, Beijing, 100039, China - ISSN：1861-9541
文摘
Zerovalent iron nanoparticles have been successfully synthesized using sodium borohydride solution reduction of ferric trichloride hexahydrate in the presence of montmorillonite as an effective protective reagent and support as well. A combination of characterizations reveals that with high monodispersity these obtained iron nanoparticles are well dispersed on clay surface, virginal from boron related impurity, and oxidation resistant well with iron core-iron oxide shell structure. The shell thickness of 3 nm remains almost invariable under ambient conditions. The size control of these iron nanoparticles has been achieved by tailoring the amount of the ferric iron, which mainly depends on the protective action of montmorillonite.