▎ 摘　　要

NOVELTY - Preparation of porous graphene material in capacitance deionization by using graphene as precursor, using modified polystyrene sphere as templates, preparing pore of porous carbon material, polymerizing by adding methacrylic acid copolymer, exposing carboxyl outside polystyrene microsphere, bonding negatively-charged polystyrene microballoon with amino group of thiourea and graphene, ensuring stable and firm template and binding of precursor, processing by high temperature, carbonizing oxidized graphene, and decomposing polystyrene and thiourea at high temperature. USE - Method for preparing porous graphene material in capacitance deionization (claimed). ADVANTAGE - The material is excellent in water solubility, and very good for capacitive deionization of water phase. The electrode material has rich pore and interconnected characteristics. It is very hydrophilic. DETAILED DESCRIPTION - Preparation of porous graphene material in capacitance deionization comprises using graphene as precursor, using modified polystyrene sphere as templates, preparing pore of porous carbon material at high nitrogen temperature, polymerizing by adding small amount of methacrylic acid copolymer, exposing carboxyl outside polystyrene microsphere to increase water-solubility of polystyrene microspheres and add negative charges, bonding negatively-charged polystyrene microballoon with amino group of thiourea and graphene to form negative-positive-negative capacitance interlayer structure, ensuring stable and firm template and binding of precursor, processing by high temperature, carbonizing oxidized graphene, and decomposing polystyrene and thiourea at high temperature to form stable porous graphene structure.