Simple approach to fabricate CdS-SiO2 hybrid microspheres by producing CdS nanoparticles on the surface of thiolated SiO2 microspheres Article

cited authors

  • Han, K; Xiang, Z; Wang, Z; Wang, CL; Li, MJ; Zhang, JH; Yang, B

fiu authors

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.

publication date

  • January 1, 2006

Digital Object Identifier (DOI)

start page

  • 76

end page

  • 79

volume

  • 22

issue

  • 1