Multifunctional magnetic graphene hybrid architectures: one-pot synthesis and their applications as organic pollutants adsorbents and supercapacitor electrodes

Abstract

A multifunctional magnetic 3D graphene/Fe₃O₄ architecture (GFA) has been fabricated by a facile and scalable one-pot self-assembled strategy through hydrothermal treatment of a mixed aqueous precursor solution of graphene oxide (GO) and Fe₃O₄ nanoparticles (NPs). Benefiting from the 3D porous structure and synergistic effects of the assembled graphene nanosheets and Fe₃O₄ NPs, the resultant GFA exhibits excellent adsorption capacities of not only organic dyes such as methylene blue (MB), but also toxic solvents such as toluene and chloroform, and improved electrochemical capacitive performances in comparison with pristine graphene architectures and Fe₃O₄ NPs. The impressive results presented here may have high impact on the future fabrication of functional graphene based architectures for practical applications.