Synthesis of CdS Nanocrystals in Polymer-impregnated Sol-gel Silica Matrix

Chem. J. Chinese Universities ›› 2006, Vol. 27 ›› Issue (5): 979.doi:

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Synthesis of CdS Nanocrystals in Polymer-impregnated Sol-gel Silica Matrix

TANG Jun ^1* , LIN Hang ^1,2 , WANG Ce ^2*

1. College of Chemistry, 2. Alan G. Macdiarmid Laboratory, Jilin University, Changchun 130023, China

Received:1900-01-01 Revised:1900-01-01 Online:2006-05-10 Published:2006-05-10

Abstract

Abstract:

A new method for the synthesis of CdS nanocrystals in polymer-impregnated sol-gel matrix was described. The CdS nanocrystals were prepared by simply passing H₂S in polymer/silica sol-gel composite matrix formed by the in situ polymerization of tetraethoxysilane in Cd ²⁺ containing polymer microgel. The synthesized CdS nanocomposite were characterized by means of X-ray diffraction(XRD), UV-Vis spectroscopy and TEM. X-ray diffraction and TEM results show that hexagonal CdS nanocrystals are well dispersed in polymer/silica composite matrix. The results of UV-Vis spectroscopy demonstrate that the size of CdS nanocrystals can be adjusted from 1.0 nm to 2.4 nm by changing the amount of H₂S.

Key words: KeywordsCdS nanocrystal; Sol-gel; Composite matrix

CLC Number:

O631
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O631

TrendMD:

TANG Jun ^1* , LIN Hang ^1,2 , WANG Ce ^2*. Synthesis of CdS Nanocrystals in Polymer-impregnated Sol-gel Silica Matrix[J]. Chem. J. Chinese Universities, 2006, 27(5): 979.

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Synthesis of CdS Nanocrystals in Polymer-impregnated Sol-gel Silica Matrix

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