Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1251519 | Chemical Research in Chinese Universities | 2006 | 4 Pages |
Abstract
We have developed a simple synthetic method to prepare the hybrid microspheres of CdS nanoparticles on the surface of silica microspheres modified by(3-mercaptopropyl)trimethoxysilane(MPS). The-SH groups of MPS can bind with the Cd2+ ions on the surface of SiO2. When thioacetamide releases H2S, the nanosized CdS particles(1-6 nm) will successfully be generated on the silica surface under the experimental conditions. The size of the CdS nanoparticles was found to be related to the concentration of Cd2+ feed and the size of silica spheres, the higher the concentration of Cd2+ and the larger of silica microspheres, the bigger the size of CdS nanoparticles. Techniques including UV, PL, TEM and XPS were used to characterize the CdS-SiO2 hybrid microspheres.
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Authors
Kun HAN, Zheng XIANG, Zheng WANG, Chun-lei WANG, Min-jie LI, Jun-hu ZHANG, Bai YANG,