Recent Advances in the Synthesis and Characterization of Nanoparticles: A Green Adeptness for Photocatalytic and Antibacterial Activity

Abstract

The green synthesis of metal oxide nanoparticles is an eco-friendly, rapid, and cost-effective development of novel technologies. The catalyst of nickel oxide (NiO) nanoparticles has been synthesized by the green route’s method using Lantana camara Linn and nickel chloride. It was found that plant-mediated synthesis of nickel oxide nanoparticles can greatly enhance the antibacterial and photocatalytic activity at very low concentrations. The synthesized plant-mediated NiO nanoparticle was characterized by the structural and optical properties, morphology, and composition of NiO nanoparticles (NPs) with the help of various techniques such as Ultra Violet (UV) spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Particle Size Analyzer (PSA), Fluorescence Spectroscopy (FL) and the photocatalytic activity studies were investigated. The antimicrobial activity was carried out against Gram-positive and Gram-negative bacteria and NiO NPs showed inhibitory activity in both strains of bacteria with excellent selectivity against Gram-positive bacteria.

Keywords

• green synthesis, lantana camara linn., nio nanoparticles, photocatalytic activity, antibacterial activity