Costus Pictus leaf extract mediated biosynthesis of Fe and Mg doped CuO nanoparticles: structural, electrochemical and antibacterial analysis

In the present paper, we portray a novel and rapid green extract assisted combustion synthesis for the preparation of pure, Mg doped CuO and Fe doped CuO nanoparticles (NPs) using different concentrations of Costus pictus leaf extract (20 ml, 40 ml, 60 ml, and 80 ml). The structural morphology of these NPs was investigated by Powder X-ray diffraction (PXRD), Scanning electron microscopy (SEM), Energy dispersive x-ray analysis (EDX), Transmission electron microscopy (TEM), Fourier transform Infrared spectroscopy (FTIR) techniques and UV-Visible spectroscopy. Using the Rietveld refinement method XRD patterns were refined which specified the formation of the monoclinic structure without any multiphase and also confirmed that Mg and Fe ions are successfully doped into CuO crystal lattice by occupying Cu ionic sites. Finally, versatile investigations of antibacterial susceptibility and electrochemical sensing were carried over the CuO NPs.