- Wu Yanfu
Wu Yanfu
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
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Search for this author on this site - Wang Fei
- Wan Xiaowen
- Wang Yaping
- Yang Shengchun
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SiO2/Ag composite material was synthesized with polyvinylpyrrolidone (PVP) as both the reductant and stabilizing agent. The particle size and quantity of silver nanoparticles on silica spheres could be changed with [Ag(NH3)2]+ ions of different concentrations. Transmission electron microscope (TEM) and scanning electron microscope (SEM) analysis were used to characterize the SiO2/Ag composite material. Results show that the silver is deposited on silica spheres as polycrystalline nanoparticles. Raman spectrometer measurement shows that surface enhanced Raman scattering (SERS) performance is improved by increasing the quantity of silver deposition on silica.
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[Wu Yanfu, Wang Fei, Wan Xiaowen, Wang Yaping, Yang Shengchun. Preparation of SiO2/Ag Nanocomposite Material and Its Surface Enhanced Raman Scattering Property[J]. Rare Metal Materials and Engineering,2012,41(12):2169~2172.]
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- Received:December 03,2011