Synthesis of NiO nanoparticles via green route using Ageratum conyzoides L.leaf extract and their catalytic activity

摘要

Nickel Oxide nanoparticles(NiO-NP)have been successfully synthesized using Ageratum conyzoides L.leaf extract via green method.The optical,structural,and morphology of NiO-NP were characterized.The characterization UV-Vis spectrophotometer showed a typical peak of NiO-NP at maximum wavelength of 324 nm.FT-IR characterization confirms that the stretching vibration of Ni-0 occurs at wavenumber of 434 cm~(-1).The particle size distribution of NiO-NP was 50.70-91.3 nm characterized by PSA.The XRD pattern showed the crystallinity of NiO-NP with cubic structure.TEM image showed the particle size of NiO-NP was 8-15 nm.The catalytic activity percentage of NiO-NP shown 83% in the reduction of methylene blue compared to catalytic activity without catalyst was 28% for 18 minutes.