A sustainable approach for synthesis of zinc oxide nanoparticle by Aloe barbadensis and its application in photocatalytic decolouration of commercial dyes.

Abstract

Zinc oxide nanoparticles (ZnONPs) biosynthesis is gaining popularity since it is environmentally safe and can withstand a wide range of environmental conditions. The widely known medicinal herb Aloe barbadensis was employed to create ZnONPs in this work. XRD (X-Ray Diffraction), EDAX (Energy dispersive X-ray microanalysis), and TEM (Transmission Electron Microscopy) were also used to characterise the produced ZnONPs. In XRD, the produced ZnONPs revealed crystalline character, with an average size of 30 50 nm. TEM was used to determine spherical morphology. Under ultraviolet irradiation, the photocatalytic decolorization of Sudan IV, Crystal Violet (CV), and Acridine Orange (AO) by biogenic produced ZnONPs was studied. Using all three dyes (10-50 ppm) throughout a 4-hour incubation time, the produced ZnONPs showed 100% photocatalytic decolorization activity