摘要

The spherical ZnS and flower-like US microcrystallites are prepared by a convenient hydrothermal process through the reactions of Zn (CH3COO)(2)center dot 2H(2)O or Cd(CH3COO)(2)center dot 2H(2)O with S and NaH2PO2 center dot H2O in aqueous solution at 180 degrees C for 12 h. Powder X-ray diffraction (XRD) is used to confirm the cubic phases of the ZnS and CdS microcrystallites. Their chemical compositions are characterized by X-ray photoelectron spectroscopy (XPS). Scanning electron microscope (SEM) images show the morphologies of the as-synthesized ZnS and CdS. The photoluminescence spectra (PL) exhibit their optical properties.