Characterization of zinc sulfide nanoparticles encapsulated in zeoliteY by MEB and UV–Vis spectroscopy

Abstract

The present study deals with ZnS semiconductor nanoparticules incorporated in zeolite. The zeolitheY is synthesized using sol–gel method. In second, the Zn2+ ions are fixed on the zeolite by ionic exchange. Finally, γ rays are performed on Zn-Y with thiol; which leads to the generation of ZnS-Y nanoparticles. The location of ZnS nanoparticles inside zeolite hosts was confirmed by the blue-shifted reflection absorption spectra with respect to that of bulk ZnS materials. The model of the effective mass gives a particle size varying from 1 to 2 nm, scanning electron microscopy (SEM) examinations show a porous morphology of the zeolite. After the adsorption of Zn2+ ions, an elongated shape of crystallites is observed. This shape is more marked and the faujasite porosity is reduced after the immersion of Zn-Y in RSH