摘要
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 Cd2+ 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.
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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第5期979-981,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金重大国际合作项目(批准号:200201120169)资助
