▎ 摘　　要

NOVELTY - A metal-graphene hybrid material comprises sheet form of graphene oxide and calcium lanthanum sulfide doped on top of the graphene oxide for adsorbing arsenic. USE - A metal-graphene hybrid material for arsenic adsorption and removal in soil, air, or water (claimed). ADVANTAGE - The metal-graphene hybrid material simultaneously removes trivalent arsenic and pentavalent arsenic, compared to conventional arsenic adsorbents, shows excellent adsorption efficiency, and can be synthesized without using a solvent and without generating pollutants after synthesis. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for production of metal-graphene hybrid material which involves forming mixture by mixing graphene oxide with distilled water, adding and stirring CaLa2S4 to in the mixture, and filtering the agitated material and drying the mixture in a vacuum. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the synthesis of metal-graphene hybrid composite material (adsorbent) for adsorption and removal of arsenic.