Eco-friendly synthesis of novel magnesium oxide nanomaterials for dye degradation, battery, and sensor applications

Abstract

Nowadays green synthesis is being incorporated into various technological fields to achieve more sustainable and environmentally friendly processes. By reducing the use of hazardous chemicals, minimizing waste generation, and utilizing renewable resources, green synthesis offers potential solutions to address environmental concerns and promote sustainable development in technology sectors. Herein we demonstrate an environmentally friendly green approach for the fabrication of MgO nanoparticles by using various fruit extracts. In this current study, watermelon, Aloe vera, and Jamun fruit extracts are used as fuel for the synthesis of MgO nanomaterials. Prepared materials were characterized by various characterization techniques. Scanning electron microscopy (SEM) images demonstrate the porous nature of the material and the Diffused reflectance spectroscopy (DRS) reveals the energy gap (4.8–4.9 eV) of the material. Photocatalytic degradation of Direct Green (DG) dye was evaluated under UV light irradiation and the catalyst prepared via jamun fuel (MgO-J) exhibited excellent catalytic activity at 84% for the degradation of DG dye under UV light and better electrochemical behavior as an electrode material compared to other prepared materials. This present work demonstrates a highly efficient eco-friendly route to synthesize MgO nanoparticles for multifunctional applications and also encourages sustainable development in technology areas.