▎ 摘　　要

NOVELTY - Preparing graphene composite copper filter membrane involves forming water-soluble modified graphene solution with concentration gradient, preparing copper electroplating solution. The low-concentration water-soluble modified graphene solution prepared is added to the copper electroplating solution prepared and stirred uniformly. The pure copper is used as positive electrode and copper core as negative electrode in the solution obtained, and passed the power to carry out the reaction. The higher concentration of water-soluble modified graphene solution prepared is added, and continued to power until copper ions in copper plating solution are all reduced to copper. USE - Method for preparing graphene composite copper filter membrane. ADVANTAGE - The method enables to prepare graphene composite copper filter membrane that increases the filtering area of the copper mesh, antibacterial properties of the copper filter core, and accelerates the electroplating reaction.