▎ 摘　　要

NOVELTY - A carbon magnesium oxide-supported graphene-supported carbon fiber cloth is obtained by pretreating carbon fiber cloth using mixed solution of graphene and magnesium nitrate as deposition liquid and impurity as electrode and subjecting to constant-voltage electrophoresis deposition. USE - Carbon magnesium oxide-supported graphene-supported carbon fiber cloth is used for treating to-be-treated wastewater (claimed) and drinking water. ADVANTAGE - The carbon magnesium oxide-supported graphene-supported carbon fiber cloth with high yield and adsorption capacity, large specific surface area, and excellent material diffusion characteristics, flexibility and separation characteristics with respect to lead ion, copper ion, nickel ion, cadmium ion and fluoride ion is prepared by economical, simple and environmentally-friendly method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) usage of carbon magnesium oxide-supported graphene-supported carbon fiber cloth for treating to-be-treated wastewater, which involves adjusting pH of wastewater to 4.5-7 and continuously adsorbing heavy metals or fluoride in to-be-treated wastewater through 10-50 layers of carbon fiber cloth. The flow rate of to-be-treated wastewater through carbon fiber cloth reactor is 10-100 mL/hour; and (2) regeneration of carbon magnesium oxide/graphene-supported carbon fiber cloth, which involves preparing 0.05-3 mol/L disodium edetate solution, placing carbon magnesium oxide/graphene-supported carbon fiber cloth in disodium ethylenediaminetetraacetate solution, stirring and reacting mixture for 5-60 minutes and rinsing fiber cloth with deionized water.