Green Synthesis Derived Novel Fe2O3/ZnO Nanocomposite for Efficient Photocatalytic Degradation of Methyl Orange Dye

Abstract

aims: The present study aims to prepareFe2O3/ZnO nanocomposite by using Mangifera indica leaf extract as a reducing agent to understand the complete mechanism of photocatalytic activity against methyl orange as it is more toxic and widely distributed in aqueous streams. background: Over the years, a number of green synthesized metal-oxide based nanocomposites viz Ag/RGO/Fe3O4, CuO/ZnO, CuO/C,rGO-Ag/ZnO, Ag/TiO2, Ag/Fe3O4 etc. have been reported. They are proved to be excellent photocatalytic, anti-bacterial and antioxidant agents. objective: The photocatalytic efficiency of the synthesized nanocomposite was evaluated for degradation of methyl orange dye using visible LED light. Adsorption isotherm and kinetic studies were also studied to validate the study. method: The synthesized nanomaterials were successfully characterized by X-ray diffraction, UV-visible spectrophotometer, Photoluminescence spectroscopy and Transmission electron microscopy and operational conditions was optimized to get the best degradation efficiency of organic dye. Adsorption isotherm and kinetic models were also evaluated. result: The photocatalytic activity of Fe2O3/ZnO nanocomposite reaches to about 91.07 conclusion: In the present study, we have successfully synthesized Fe2O3/ZnO nanocomposite by a facile, efficient and green root technique via co-precipitation method. The method involved the use of Mangifera indica plant leaf extract as a natural reducing agent. There was monolayer adsorption of MO dye molecules on the surface of synthesized catalyst as revealed by adsorption isotherm studies. Also, the adsorption process followed the pseudo-second order kinetic model in this study. other: Thus the obtained data of this study may be useful in designing and fabricating economical waste water treatment materials and can significantly contribute to the decontamination of a variety of pollutants and dyes from aqueous environments.