Synthesis of Cu doped NiO for Their Antioxidant and Photocatalytic Properties: Green Synthesis Using Lycopodium Linn

Abstract When compared to metal oxide nanoparticles made via physical and chemical processes, those made using botanical extracts are more stable and biocompatible. Evaluation of the antioxidant and photocatalytic properties of NiO NPs synthesized from Phytolacca dodecandra L. Herit (P.d) leaf extract is the primary objective of this study. The produced Cu-doped NiO-NPs at an optimal temperature of 400 oC have been studied using XRD, TEM, FT-IR, UV-Vis, BET, and XPS studies at varying concentrations of copper (1, 3, and 5%). Dye water solutions of Rose Bengal (RB) and Methylene Blue (MB) were degraded to test the photocatalytic activity of the produced samples. When exposed to UV light for 60 minutes, 5-Cu-NiO nanophotocatalyst degraded MB dye at a rate of 98.7% (0.5 mol/L), with a high apparent constant of 0.9871 min-1 and excellent long-term stability. At concentrations of 363.96 and 350.29 g/mL, respectively, NiO NPs and CuNiO NPs inhibited the oxidation of 50% of the H2O2 molecules in the antioxidant test. In addition, copper ions may be responsible for the increased antioxidant activity of the biosynthesized NiO NPs.