Entrapment and stabilization of cadmium sulphide (CdS) nanoclusters formed inside propylthiol functionalized MCM-41 mesoporous materials

摘要

Cadmium sulphide nanoparticles were stabilized within the mesopores of thiol functionalized mesoporous MCM-41 by treatment with aqueous Cd~(2+) ions to form molecularly dispersed Cd(II) species within the pores, followed by addition of S~(2-) ions to the system to form the CdS nanoparticles and their simultaneous entrapment. These SH-MCM-41 and nano-CdS-SH-MCM-41 hybrid materials were characterized by XRD, UV-Vis spectroscopy, EDX, TG-DTA and N_2 adsorption measurements.