Effect of calcination temperature on the structural and morphological properties of zinc sulphide nanomaterials

Abstract

Abstract Metal sulfide nanomaterials have emerged an important material in recent times due to its potential applications in optical devices, nanoelectronics and nano-optoelectronics. In current research work, zinc sulfide (ZnS) nanoparticles were synthesis by simple chemical co-precipitation method and effect of calcination temperature on the structural and morphological properties of the nanomaterials have been investigated. It was observed that when temperature rises to 500 °C, cubic structure of ZnS transformed into hexagonal phase. Further increase in temperature oxidize the sulfide and ZnS changes into zinc oxide at 750 °C. This temperature rise was also evident in the SEM images where nanoparticles transformed into rod like morphology at 750 °C. Oxidation of the ZnS to ZnO also confirmed by FTIR spectrum which shows Zn-O bonds presence. These studies show that temperature variation can affect the structure and ultimately their relevant technological applications.