▎ 摘　　要

NOVELTY - Preparing crystal form adjustable graphene composite material, comprises (i) placing 150 mg graphene oxide in 100 ml deionized water at room temperature, and ultrasonicating for 1 hour to obtain graphene oxide dispersion, (ii) diluting 9.66 g zirconium oxychloride octahydrate by using 50 ml deionized water, then mixing with triethanolamine and graphene oxide dispersion prepared in step (i), and ultrasonicating for 10 minutes to obtain gray-black reaction solution, and (iii) transferring the gray-black reaction solution into a reactor, and reacting for 6-12 hours, then centrifuging and separating, washing the obtained for three times, drying, and grinding to obtain zirconium oxide/triethanolamine modified graphene composite material. USE - The graphene composite material is useful for adsorption and degradation of organic pollutants and biological macromolecular pollutants in water bodies. ADVANTAGE - The graphene composite material: provides suitable microenvironment for its combination with proteins and other biological macromolecules due to presence of oxygen vacancies in zirconium oxide-reduced graphene oxide composite materials.