Antioxidant and photocatalytic properties of zinc oxide nanoparticles phyto-fabricated using the aqueous leaf extract of <i>Sida acuta</i>

Abstract Nanoparticles have gained considerable attention during the present millennium due to its unique properties and usage of same in all scientific fields. The study was aimed phyto-fabricate zinc oxide nanoparticles (ZnO NPs) from Sida acuta evaluate antioxidant photocatalytic activity against dye victoria blue (VB). phyto-fabricated ZnO NPs when subjected for physico-chemical characterization showed an absorbance peak at 373 nm spherical nature. Strong well-distinguished sharp peaks were noticed X-ray diffraction analysis with average size ?32.82 calculated through Scherrer’s formula. also authenticated dynamic light scattering transmission electron microscopy. Fourier transform-infrared spectroscopy confirmed that phyto-constituents plant extract served as capping/stabilizing agents synthesis NPs. atomic force microscopy studies on morphology geometrics synthesized particles indicated monodispersed colour difference. In addition, surface area measured by Braunauer–Emmett–Teller experimental adsorption isotherms found be 7.364 m 2 ·g ?1 . efficacy offered concentration-dependent IC 50 value 0.74 mg·mL Further, VB (9 mM) degradation using (0.75 g·L ) resulted 93% 40 min natural sunlight. reuse recycling photocatalyst 70.25% ability within exposure sunlight fifth cycle reusability thereby indicating effective aqueous leaf S.