Influence of Fe-doping on the structural, optical and magnetic properties of ZnO nanoparticles

► Zn1−xFexO nanoparticles were synthesized with a simple two-step method. ► The Zn1−xFexO predecessors were synthesized at a low temperature. ► Fe element was readily doped from the source of metallic Fe sheet. ► All the Fe doping ZnO samples have room temperature ferromagnetism. ► The structural and properties of the Zn1−xFexO are regular with different x.