RETRACTED ARTICLE: Green Synthesis of Luminescent Copper Oxide Nanoparticles Using Ginger Lily Leaves Extract

Abstract

The synthesis of copper oxide nanoparticles was carried out employing simple green method by using Ginger lily leaves extract at room temperature. The phytogenically synthesized nanoparticles were characterized by XRD, FT-IR, HRTEM- SAED, FESEM-EDAX, PL and UV–Visible techniques. The XRD, FESEM and HRTEM analysis revealed average size of synthesized nanoparticles as about 40 nm. The absorbance around 300 nm in UV–Visible spectra confirmed phytogenic syn- thesis of CuONPs. The PL spectra indicated their luminescent character as the emission bands appeared around 289 nm and 580 nm indicating green-yellow emission at excitation wavelength 290 nm. The synthesized copper nanoparticles were tested against gram positive and gram negative bacteria as well as against selected fungal strain. Phytogenically synthesized CuONPs exhibited potent and excellent antibacterial activities against E. coli and S. aureus and moderate antifungal activities. Keywords