Green Synthesis and Characterizations of Cobalt Oxide Nanoparticles and Their Coherent Photocatalytic and Antibacterial Investigations

Water pollution is a serious concern for developing and undeveloped countries. Photocatalytic degradation of organic pollutants an effective method to restrain the green ecosystem. This research article presents green, low-cost, benevolent eco-friendly biosynthesis cobalt oxide (Co3O4) nanoparticles using Curcuma longa plant extract. The UV visible region absorbance Co3O4 estimated Co2+ Co3+ transitions on lattice oxygen, their bandgap 2.2 eV was confirmed from UV-DRS spectroscopy. cubic structure spherical shape were by XRD TEM characterizations. Plant molecules aggregation agglomerations established FTIR EDX Multiple valences oxygen surfaces reaction, bonding, binding energies analyzed XPS measurements. biogenic executed against gram-positive (Staphylococcus aureus—S. aureus) gram-negative (Escherichia coli—E. coli) bacteria. A bacterial strain exhibited great resistivity nanoparticles. Degradation dye performed methylene blue (MB) under conditions light irradiation. Dye efficiency pseudo-first-order kinetics denotes rate over MB dye. work achieved enhanced potency toxic radicals are excited irradiations. Absorption charged particle recombinations reformed provoked extract bio-molecules. In this process, there no inferior yield development, electrons robustly stimulated. Furthermore, biosynthesized determined susceptibility catalytic efficacy industrial pollutants.