Sabrina Roguai 1Abdelkader Djelloul 22024-02-142024-02-142021-05-0438https://doi.org/10.1016/j.ssc.2021.114362http://dspace.univ-khenchela.dz:4000/handle/123456789/1008/Nanoparticles of ZnO doped with Fe (0.00, 0.02, 0.05 and 0.10) were prepared by chemical co-precipitation method. The effect of iron doping on the structural, morphological and optical properties of ZnO nano particles was examined by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and UV–Visible spectroscopy. The XRD analysis revealed the single-phase of the as made and Fe-doped ZnO nanoparticles. SEM images showed the formation of aggregates of small individual nanoparticles of various sizes. FTIR analysis indicated the existence of distinct characteristic absorption peaks at 447 cm− 1 for Zn–O stretching mode with some changes in the intensities. UV–Visible measurement revealed a reduction in the energy gap with increasing Fe concentration, which is generally due to increasing mesh pa rameters. The photocatalytic activity of Zn1-xFexO was evaluated by analyzing the degradation of methylene blue (MB). The presence of iron from 2% to 10 at% in the ZnO nanopowder was found to decelerate the photocatalytic process.enArticle