文献类型：期刊文献

英文题名：MPS-modified silica nanoparticles linked with Cd²⁺ ions

作者：Mu, J; Xu, LH; Wei, QL

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2006

卷号：27

期号：2

起止页码：143

外文期刊名：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000234635600001)】；

语种：英文

外文关键词：silica nanoparticles; MPS modifying; cadmium ions; linkage

摘要：Silica nanoparticles were linked by using 3-mercaptopropyltrimethoxysilane (MPS) as a coupling agent and Cd2+ as bridging ions. The TEM micrographs showed approximately linear linkage between the silica nanoparticles rather than dense packing. The UV-visible absorption spectra confirmed the formation of S-Cd-S bonds between the silica nanoparticles. The alternative films of MPS-modified SiO2 nanoparticles and Cd2+ ions were also prepared using the layer-by-layer self-assembly technique and characterized by AFM.