Fig. 1

Characterization of nanoparticles. A: XRD pattern of CuO nanoparticles, B: FT-IR spectra of CuO nanoparticles, C: SEM of CuO nanoparticles. A: the XRD pattern of CuONPs synthesized from copper nitrate (II) trihydrate and pomegranate peel extract. B: the FTIR spectra for the synthesized CuONPs. According to the FTIR spectra of CuONPs, the most significant absorbance peak was noted at 524 cm-1, corresponding to Cu–O stretching vibration. C: The surface morphology of the synthesized CuONPs was inspected under the scanning electron microscopy (SEM)