期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 17, 期 4, 页码 762-766出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2011.05.030
关键词
Magnetite particles; Silver nanoparticles; 3-Mercaptopropyltrimethoxysilane; Sol-gel reaction; Polyol process; Core-shell structure
资金
- Korea Research Foundation [2009-0076429]
- National Research Foundation of Korea [2009-0076429] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We demonstrate a modified polyol process to synthesize silver nanoparticles on the surface of larger magnetite nanoparticles. The overall process consists of two step reactions. First the magnetite particles of 100-200 nm in diameter are functionalized with a coupling agent 3-mercaptopropyltrimethoxysilane (MPTMS) through a sol-gel reaction. The functionalization of the magnetite surface is confirmed with IR spectra. For the second step silver nitrate is reduced at the site of thiol groups of the functionalized magnetite surface with ethylene glycol (EG) and polyvinylpyrrolidone (PVP). It was observed that silver nanoparticles were formed on the surface of the magnetite particles from transmission electron microscopy images and chemical composition analysis with energy dispersive spectrometer. (C) 2011 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据