Preparation and Characterization of Silver Nanoparticles in the Presence of Inclusion Complex of β-Cyclodextrin with Phenylsilane
Silver nanoparticles are prepared in an aqueous medium consisting of an inclusion complex β-CD/PS, formed between β-cyclodextrin (β-CD) and phenylsilane (PS). The PS acts as a reducing agent. β-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 β-CD/PS inclusion complex, most of the silver particles underwent macroscopic precipitation, which indicates that the β-CD/PS inclusion complex is essential for stabilizing the silver nanoparticles.
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Document Type: Research Article
Publication date: 01 October 2008
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