Structural and surface morphological study of Ni doped ZnS nanoparticles

Samples of Zn1−xNixS (x=0.00, 0.04, 0.08) nanoparticles were synthesized by using the co-precipitation method at room temperature. Structural parameters were investigated by X – ray diffraction (XRD), it reveals that all samples of Ni doped ZnS exhibit the cubic structure with no additional impurity phase. The average crystallite size of all samples is in the range of 2.70 to 2.90 nm. The lattice parameters, X – ray density, volume of unit cell and grain size were calculated using XRD data. It is found that the lattice parameter increases with increasing Ni concentration. Surface morphology of samples was investigated using field emission scanning electron microscopy (FE-SEM). From this study it is concluded that samples exhibit cubic morphology. Chemical compositions of Ni doped and pure ZnS samples were detected using EDAX spectra. It is confirmed from EDAX that Ni substitute into ZnS lattice