Effect of trisodium citrate concentration on the particle growth of ZnS nanoparticles

ZnS nanoparticles were prepared by simple wet chemical precipitation method to study the effect of sulfur and trisodium citrate concentration on the particle growth of ZnS nanoparticles. Particle sizes were seen varied with the concentration of the sulfur and trisodium citrate. Compressive strain was observed only for a particular concentration of sulfur, and that sample was chosen for trisodium citrate experiments. Interestingly, the compressive strain was seen varied with the concentration of trisodium citrate and seen maximum for 2 M concentration of trisodium citrate. Further, interband transition was observed in the case of smaller crystallites prepared in the trisodium citrate. It is clearly observed from the FTIR analysis that the trisodium citrate acts as a stabilizer and capped the particles from further growth.