▎ 摘　　要

NOVELTY - Preparation graphene adsorption material comprises (a) taking e.g. melamine and distilled water to obtain solution, adding in a drop wise manner polyethylene imine into a cyanuric acid solution, ultrasonic process for clarification, taking melamine solution into clarification solution, taking the mixed solution into water bath, suction filtration, placing at constant temperature vacuum drying box for drying to obtain proir powder, (b) taking obtained proir powder into vacuum tube type resistance furnace for sintering, collecting the black powder as nitrogen doped graphene. USE - The graphene adsorption material is useful for treating water in diphenol propane (claimed). ADVANTAGE - The method: is simple and economical. DETAILED DESCRIPTION - Preparation graphene adsorption material comprises (a) taking melamine, cyanuric acid and distilled water to obtain solution, adding in a drop wise manner polyethylene imine into a cyanuric acid solution, ultrasonic process for clarification, taking melamine solution into clarification solution, taking the mixed solution allowing to stand in water bath at constant temperature reaction, suction filtration, placing at constant temperature vacuum drying box for drying to obtain proir powder, (b) taking obtained proir powder into vacuum tube type resistance furnace for sintering, collecting the black powder as nitrogen doped graphene.