Synthesis and Characterization of Fe-doped Manganese Oxide Nanoparticle for Photocatalytic Degradation of Indigo Blue Dye

Fe-doped manganese oxide nanoparticles were successfully produced using the chemical precipitation method. The generated nanoparticles were characterized by XRD, SEM, EDAX, FTIR, and UV. The average crystallite size of the sample was examined using the XRD method. The Fe-doped MnO2 NPs crystallite size was determined to be 11.56 nm. The morphology and grain size were ascertained using SEM images. They exhibit tiny granules that range in size from 10 to 40 nm. The elemental composition of Fe-doped MnO2 NPs was confirmed by EDAX to be 77.20 Fe, 20.60 Mn, and 2.20 O₂. The FTIR tests reveal high absorption peaks for many functional groups, including C=O, CO₂, NH+, O-H, and MnO₂. In the UV spectra, the optical band gap was calculated between 1.5 and 5.0 eV. XRD examination revealed that the average particle size of Fe-doped MnO2 nanoparticles was 11.56 nm. The produced nanoparticles were appropriate for the photo-catalytic degradation of the colour indigo blue.