Green synthesis of zinc oxide nanoparticles by fresh and dry alhagi plant

Abstract

Plant material used to synthesize metal nanoparticles, which considered a green technology. In this respect, using fresh and dry Alhagi plant, a non-toxic, eco-friendly, and cost-effective for the synthesis of ZnO nanoparticles have been devised. X-ray diffraction (XRD), UV–visible spectroscopy (UV–Vis), transmission electron microscopy, FTIR analysis, TEM, scanning electron microscopy (SEM), and atomic force microscopy (AFM) used to characterize the produced nanoparticles. The ZnO nanoparticles found to be crystalline in nature with a single phase, according to XRD examination and the average crystallite size calculated using the Scherer's formula was about 20.3 and 22.6 for ZnO by fresh and dry plant respectively. For the sample obtained by fresh Alhagi plant extract shown clear Plasmon resonance, while dry Alhagi plant extract ZnO Nps shown tiny Plasmon resonance. The band gaps of ZnO NPs using fresh plant extract were 3.12 and 3.5 eV, while the band gaps of ZnO prepared from dry plant extract ZnO Nps were 3.15 eV. By FTIR analysis Chemical bond formations of zinc oxide confirmed. TEM analysis of ZnO NPs prepared by fresh plant and dry plant, it found the size in range from 25 to 100 nm and 35 to 100 nm respectively. The SEM images of the NPs have different shape and size in range nanoscale. AFM of ZnO NPs showing mounds-like structure and the grains are homogenous and aligned vertically.