Phytochemical assisted synthesis of Ni doped ZnO nanoparticles using aloe vera extract for enhanced photocatalytic and antibacterial activities

Abstract

This report focuses on facile and green approach to synthesize ZnO and Ni doped ZnO nanoparticls (NPs) through a phytochemical assisted method using an aloe vera extract as reducing and capping agent. The phase confirmation, structural morphology, surface area, chemical compositions of as prepared NPs were investigated in depth using several techniques such as XRD, FTIR, UV-Vis, SEM, TEM, PL and XPS techniques. The photo catalytic activity of the NPs evaluated towards the degradation of two toxic dyes such as Crystal violet(CV) and Congo red (CR). The antimicrobial activity of the NPs evaluated against E.Coli, Klbsiella Pneumoniae, Staphylococcus aureus and Streptococcus pyogenes. As a result of conducted experiments, it was found that Ni-doped ZnO exhibits better photocatalytic and antibacterial activities compared to pristine ZnONps. The mechanism of enhanced activities discussed in detail.