Photocatalytic degradation of methylene blue with Fe doped ZnS nanoparticles

3-10 mol% Fe doped ZnS nanopowders show strong photocatalytic activity under visible light irradiation, which was observed by measuring the degradation of methylene blue. The optimal Fe/Zn ratio was observed to be 3 mol% for photocatalytic applications. In contrast, little degradation was observed for the pure ZnS powder.