Chem. J. Chinese Universities ›› 2014, Vol. 35 ›› Issue (12): 2694.doi: 10.7503/cjcu20140683

• Physical Chemistry • Previous Articles     Next Articles

Synthesis and Optic Properties of Sulfide/Silica Nanocomposite Material

XU Linxu, CUI Fang*(), WANG Hao, YAO Tongjie, CUI Tieyu   

  1. Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China
  • Received:2014-07-21 Online:2014-12-10 Published:2014-11-29
  • Contact: CUI Fang E-mail:cuifang@hit.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21104011, 51273051, 21174033)

Abstract:

In conventional methods to preparation silica, it is inevitably to use the acid or basic catalysts, which have a destructive effect on molecules or particles that are sensitive to pH. These methods have significant limitations in the preparation of the silica composites materials. Therefore, it is still a great challenge to find a mild way to synthesize silica. In this paper, we used synthesized of alanine cadmium as a precursor of the nanoparcitles, taking advantage of the amine group in the alanine cadmium molecule as catalyst to catalyze siloxane hydrolysis and condensation without added acid or basic catalysts, meanwhile, the alanine cadmium was introduced to the silica. Then the CdS nanoparcitles were prepared by in situ the way of vulcanization. The characterization of the material through Fourier transform infrared spectroscopy, proton nuclear magnetic resonance, ultraviolet-visible spectrum, fluorescence microscopy and transmission electron microscopy shows that the nanocomposites material with the CdS particle uniformly distribution in silica are synthesized. The material has excellent fluorescence properties.

Key words: Amino acid, CdS, Silica, Nanocomposite material, Fluorescence property

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