Green synthesis of magnesium oxide nanoparticles: characterisation for sonocatalytic ability to remove Alizarin Red S dye in aqueous solution

Abstract

In this present work, MgO nanoparticles have been successfully synthesized by using Tribulus Terrestris leaf extract and were characterized by UV-Vis spectrophotometer. Dispersity and surface morphology were analyzed by dynamic light scattering and scanning electron microscope (SEM). Crystal nature and purity of the MgO nanoparticles were analyzed using X-ray diffraction analysis (XRD) and energy dispersive X-ray analysis (EDAX). FTIR analysis showed functional groups present in the phytochemicals of Tribulus Terrestris plant extract responsible for reduction and stabilization of MgO nanoparticles. The sonocatalytic efficiency of MgO nanoparticles was examined by degrading Alizarin Red S (ARS) under ultrasonic sound irradiation. Green synthesized MgO nanoparticles effectively degraded the dye nearly 95% within 5 hrs. of exposer time.