Preparation and characterization of silver nanoparticles in the presence of inclusion complex of beta-cyclodextrin with phenylsilane.
Silver nanoparticles are prepared in an aqueous medium consisting of an inclusion complex beta-CD/PS, formed between beta-cyclodextrin (beta-CD) and phenylsilane (PS). The PS acts as a reducing agent. beta-CD/PS complex stabilizes the Ag nanoparticles preventing agglomeration and provides a self-assembling environment for forming nanostructure around Ag nanoparticles. The TEM (transmission electron microscopy) and FE-SEM (field emission scanning electron microscopy) data suggest the formation of hybrid composites in which large numbers of silver nanoparticles (< 20 nm) are dispersed. SAED patterns are consistent with that for fcc-typed silver. In the absence of the beta-CD/PS inclusion complex, most of the silver particles underwent macroscopic precipitation, which indicates that the beta-CD/PS inclusion complex is essential for stabilizing the silver nanoparticles.
Kim
Bo-Hye
BH
Alan G. MacDiarmid Energy Research Institute (AMERI) and Nanotechnology Research Center, Department of Chemistry, Chonnam National University, Gwangju 500-757, Korea.
Kim
So-Yeun
SY
Woo
Hee-Gweon
HG
Jun
Jin
J
Sohn
Honglae
H