▎ 摘　　要

NOVELTY - The preparation of three-dimensional modified carbon nanotube graphene composite material for removing tetracycline from aqueous solution involves (1) weighing and preparing 2 mg/ml graphite oxide solution, and ultrasonically treating to obtain graphene oxide, (2) adding ascorbic acid to above solution, ultrasonically treating to obtain mixed solution, (3) mixing modified carboxyl carbon nanotube and deionized water, mixing, adding to obtained mixed solution, mixing, (4) transferring mixed solution to beaker, reacting, soaking obtained materials in distilled water, and freeze drying. USE - Preparation of three-dimensional modified carbon nanotube graphene composite material (claimed). ADVANTAGE - The method enables large-scale production of three-dimensional modified carbon nanotube graphene composite material having excellent dispersibility in water, at low cost by simple process, avoiding toxicity of nano graphene and carbon nanotube powder, and achieving mass productivity. DETAILED DESCRIPTION - The preparation of three-dimensional modified carbon nanotube graphene composite material for removing tetracycline from aqueous solution involves weighing and preparing 2 mg/ml graphite oxide solution, and ultrasonically stripping to obtain graphene oxide, adding a certain amount of ascorbic acid to the above solution, ultrasonically treating to obtain mixed solution, mixing certain amount of modified carboxyl carbon nanotube and 10 ml deionized water, ultrasonically mixing for 2 hours, adding to obtained mixed solution, ultrasonically mixing for 0.5-1 hour, transferring mixed solution to a beaker, reacting at 80 degrees C for 10-14 hours in water bath, soaking obtained materials in distilled water to obtain modified carbon nanotube graphene composite hydrogel, and freeze drying.