▎ 摘　　要

NOVELTY - Thermally expanded reduced graphene oxide-metal composite comprises thermally expanded reduced graphene oxide and zero-valent double metal nanoparticles attached to the thermally expanded reduced graphene oxide in a physical adsorption state. The zero-valent double metal nanoparticles are double metal nanoparticles for removing volatile organic compounds, iron (Fe) and nickel (Ni). USE - Used as thermally expanded reduced graphene oxide-metal composite. ADVANTAGE - The composite has excellently physical and chemical adsorption and volatile organic compounds removing properties, has a large specific surface area and excellent porosity, high adsorption performance, wide adsorption range, reusability, easy access, and is economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing thermally expanded reduced graphene oxide-metal composite, comprising preparing graphene oxide (GO), preparing thermally expanded graphene oxide by heat-treating the graphene oxide (GO) in an argon (Ar) environment, mixing a solution containing the thermally expanded graphene oxide and a mixed solution containing each chloride of iron (Fe) and nickel (Ni), and preparing a solution of a solution containing the thermally expanded graphene oxide and a mixed solution containing each chloride of iron (Fe) and nickel (Ni) to prepare the thermally expanded graphene oxide and iron (Fe) and nickel (Ni) simultaneously reducing double metal nanoparticles for the removal of volatile organic compounds.