Parmelia perlata mediated microwave-assisted one-pot green synthesis of NiO nanoparticles a noble approach: Antibacterial and photocatalytic activity evaluation

Abstract

This study reports a green-mediated fabrication of NiO nanoparticles (NiO NPs) using Parmelia Perlata lichen extract as a sustainable source. The Physical, chemical, optical, and morphological behavior of the fabricated NiO NPs were analyzed by employing diverse analytical profiles like XRD, FTIR, UV, and SEM. FTIR spectrum demonstrates the involvement of various phytochemicals in the bio-fabrication of NiO NPs. Furthermore, the appearance of a band at 668 cm−1 indicates the successful formation of NiO NPs. The observations of the SEM analysis depicted that the average particle size was in the range of 40–50 nm. The result of the antibacterial study indicates that the NiO NPs significantly reduce the growth of Staphylococcus aureus (19 mm). The result of the photocatalytic research illustrated that the bio-fabricated NiO NPs exhibited superior photocatalytic activity in the degradation of acridine orange dye achieving 84 % degradation efficiency.