Chemical Precipitation Synthesis of Ferric Chloride Doped Zinc Sulphide Nanoparticles and Their Characterization Studies

TL;DR

This study synthesizes Ferric Chloride doped Zinc Sulphide nanoparticles via chemical precipitation, characterizes their structure and thermal properties, and observes how doping affects particle size, band gap, and thermal stability.

Contribution

It introduces a simple chemical precipitation method for doping ZnS with Ferric Chloride and provides detailed characterization of the resulting nanoparticles.

Findings

Particle size and surface area are characterized by XRD.

Doping increases the optical band gap.

Thermal stability decreases with higher Ferric Chloride concentration.

Abstract

Nanoparticles of Ferric Chloride doped ZnS has been synthesized by simple chemical precipitation method and characterized by XRD, SEM, UV-Vis analysis, Differential Thermal Analysis, Thermo Gravimetric Analysis and Differential Scanning Calorimetry. XRD patterns of the samples reveal particle size, specific surface area and the formation of cubic structure. The SEM images show that the cauliflower likes structure. Optical band gap values have been obtained from UV-Vis absorption spectra. It has also been found that energy band gap (Eg) increases with the increase in molar concentration of reactant solution. Thermal analysis measurement of the prepared sample shows that the thermal stability of pure ZnS is decreased due to increase in Ferric Chloride concentration. Undoped ZnS is more thermal stable when compared to FeCl3 doped ZnS.