▎ 摘　　要

NOVELTY - Preparing super-elastic magnetic graphene aerogel comprises (i) using Hummers oxidation method to prepare graphene oxide mixed solution with a predetermined concentration, (ii) using surface-initiated polymerization method to prepare polyacrylic acid-modified ferric oxide nanoparticles, and performing amination treatment to obtain modified magnetic nanoparticles, (iii) preparing the modified magnetic nanoparticles into a modified magnetic nanoparticle mixed solution, then adding the modified magnetic nanoparticle mixed solution to the graphene oxide mixed solution, obtaining blend solution, and adjusting the concentration of the graphene oxide in the blend solution to 1-10 mg/ml, where the mass ratio of the graphene oxide and the modified magnetic nanoparticles is 1:1-8:1, and (iv) ultrasonically dispersing the blend solution, and heating to 50-90 degrees C for 0.5-30 hours to obtain a reaction liquid. USE - The method is useful for preparing super-elastic magnetic graphene aerogel. ADVANTAGE - The graphene sheets quickly and efficiently separate oil pollutants in water bodies. DETAILED DESCRIPTION - Preparing super-elastic magnetic graphene aerogel comprises (i) using Hummers oxidation method to prepare graphene oxide mixed solution with a predetermined concentration, (ii) using surface-initiated polymerization method to prepare polyacrylic acid-modified ferric oxide nanoparticles, and performing amination treatment to obtain modified magnetic nanoparticles, (iii) preparing the modified magnetic nanoparticles into a modified magnetic nanoparticle mixed solution, then adding the modified magnetic nanoparticle mixed solution to the graphene oxide mixed solution, obtaining blend solution, and adjusting the concentration of the graphene oxide in the blend solution to 1-10 mg/ml, where the mass ratio of the graphene oxide and the modified magnetic nanoparticles is 1:1-8:1, (iv) ultrasonically dispersing the blend solution, and heating to 50-90 degrees C for 0.5-30 hours to obtain a reaction liquid, (v) cooling the reaction solution to room temperature, adding the ascorbic acid to the reaction solution in a ratio of 1:1-10:1 by mass of ascorbic acid and the graphene oxide, after dispersed by ultrasonic stirring, and placing the reaction in an oven to obtain a magnetic graphene hydrogel, and (vi) dialyzing the magnetic graphene hydrogel in a water-alcohol mixture with a volume fraction of 5-50%, freeze-drying, thermally annealing the magnetic graphene hydrogel after freeze-drying in an inert atmosphere at 200-800 degrees C for 0.5-2 hours to obtain a magnetic graphene aerogel. An INDEPENDENT CLAIM is also included for super-elastic magnetic graphene aerogel prepared by the above mentioned method.