Preparation of ZnS nanoparticles by ultrasonic radiation method

Zn nanoparticles were prepared by the inert-gas evaporation technique with induction heating method. As-prepared Zn particles were mixed with Na2S solution. ZnS nanoparticles were synthesized under ultrasonic radiation. They were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV spectrophotometry, and X-ray photoelectron spectrometry (XPS). XRD revealed that the ZnS nanoparticles prepared have a zincblende structure. TEM observations showed that the ZnS nanoparticles are in a spherical form with an average diameter of 40 nm. XPS results proved that, for our sample, the binding energies of Zn 2p and S 2p are the same as those of bulk single-crystal, but the full widths at half maximum of the XPS peaks are larger than those of bulk single-crystal.