Exploring the collaborative wonders of Al2O3-Mn3O4-Fe2O3 nanoparticles embedded in reduced graphene oxide matrices

Abstract

Synergistic nanomaterials with enhanced electrical, magnetic, anticorrosive, and photocatalytic characteristics were synthesized through a controlled hydrothermal process using a reduced graphene oxide matrix for entrapping Al2O3-Mn3O4-Fe2O3 nanoparticles. The structure and properties of the nanocomposites were characterized using X-ray diffraction, Scanning electron microscopy, Ultraviolet–visible spectroscopy, and Fourier transform infrared spectroscopy techniques. The synergistic combination of reduced graphene oxide and ternary metal oxide nanoparticles resulted in enhanced magnetic properties and improved anticorrosive and photocatalytic activity. The photocatalytic activity was tested for the degradation of organic dye (methylene blue) under ultraviolet-A and B lamps. The induced current increased with the strength of the applied magnetic field. The nanocomposites exhibited a paramagnetic character. The photocatalytic properties of the nanocomposites were investigated with time using an ultraviolet–visible spectrophotometer. The nanocomposites degrades 65 % of methylene blue dye in 60 min. of UV light exposure. The nanocomposites show a maximum of 98.24 % corrosion inhibition efficiency for mild steel in 1.0 M H2SO4 medium. These innovative ternary metal oxides embedded in reduced graphene oxide nanocomposites might be used in water purification, environmental remediation, and anticorrosive applications, improving the fields of materials science and nanotechnology.