The Effect of Solvent on the Crystal Structure and Size Distribution
of ZnS nanocrystals.
ZnS nanocrystals with different structures were synthesized by the solution
precipitation method using thiourea and zinc acetate as starting materials in different
solvents: water, methanol and N,N- dimethyl formamide(DMF). Our results show that
the solvent has direct effect on the structure and size of the final nanoparticles. It was
found that using, DMF as solvent, results in producing smaller nanoparticles ,while
using the other solvents gives rise to larger nanoparticles. It was also found that using
heat during washing the precipitate results in a more homogenous size distribution of
ZnS nanocrystals.