Green synthesis and characterization of MgO nanoparticles from black vitex negundo leaf extract

Abstract

Green Synthesis of nanoparticles from plant extracts has already established the stature of an effective eco-friendly route which can serve as an alternative to the existing conventional methods. In the present research, MgO nanoparticles (NPs)have been synthesized from pharmaceutic black vitex negundo (Karunochi) leaf extract. The synthesis of NPsobtained by employing bio-safe routes is in the limelight because nontoxic reagents are involved in the form of green extracts.The synthesized sample has been characterized by the X-ray diffraction; Fourier transforms infrared spectroscopic analysis, and UV spectral analysis. Photon energy of MgO nanoparticles is estimated to be 5.9223 eV from the data of optical absorption and the obtained FTIR spectrum confirms the presence of the organic molecules in the NPs. The optical band gap energy is calculated to be 5.915 eV for the synthesized NPs which is not yet reported, to date, according to the literature. From the data of XRD analysis, the particle size can be estimated such that it is calculated to be 22 nm which is accomplished by supplementing the crystalline d-spacing with the values of (hkl). The present outcome of the research is that the NPs can be used as a supplementary medicine to treat covid-19 patients and they can also be utilized as pest control. The synthesized sample can be a cough remedy and it has the nature of acting as an antiseptic.