Hydrothermal growth of CdS and ZnS nanoparticles in MOR-type zeolites

We report the growth by hydrothermal synthesis of US and ZnS clusters in MO R-type zeolite matrices using CdCl2 and ZnCl2 and hydrogen sulphide flow as starting sources. When the Cd and Zn concentration increases, we observe t he deformation of the matrix using XRD and Raman spectroscopy. The semicond uctor nanoparticles embedded in MOR matrices are responsible for the observ ed electronic and optical properties of the nanocomposite. The absorption a nd excitation spectra show that the optical band gap varies in the range 2. 6-3.98 eV, depending on the semiconductor material and their relative conce ntration, (C) 2001 Elsevier Science B.V. All rights reserved.