Flake-like CuMn2O4 nanoparticles synthesized via co-precipitation method for photocatalytic activity

In present work, flake-like CuMn2O4 (Copper manganite) Nanoparticles (NPs) were prepared by Co-precipitation method. The FCC spinel phase structure was determined from the PXRD pattern. The optical properties were analyzed by UV-Vis DRS spectroscopy and energy band gap is found to be 2.54 eV. From the FTIR analysis, two bands are observed at 605 cm(-1) and 498 cm(-1) respectively for metal oxide bonds of Cu-O and Mn-O which is originating from the stretching vibration modes. From the SEM analysis, the size of the prepared material was found to be 50-100 nm. The EDAX spectrum reveals that there are no impurities were present in the CuMn2O4 NPs. Towards the application perspective, the photocatalytic performance was examined by the prepared CuMn2O4 NPs against the organic dyes of Methylene Blue (MB) and Malachite Green (MG) and their corresponding degradation efficiencies are 86% and 92% under sunlight irradiation.