▎ 摘　　要

NOVELTY - Preparing graphene metal-based aerogel comprises (i) dissolving polymer and transition metal salt in water to obtain mixed solution, (ii) heating the mixed solution obtained in step (i) to obtain transition metal oxide nanoparticles, (iii) carrying out cold thawing of obtained transition metal oxide nanoparticles repeatedly to obtain polymer gel fixed transition metal nanoparticles, and (iv) calcining aerogel obtained after freeze-drying the polymer gel fixed transition metal nanoparticles obtained in step (iii) in protective atmosphere to obtain final product. USE - The graphene metal-based aerogel is useful for adsorption and catalysis (claimed). ADVANTAGE - The method: inhibits agglomeration of nano materials and facilitates solid-liquid separation; and increases the active sites of materials, and enhance the activity of materials. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene metal-based aerogel prepared by above method; and #use of graphene metal-based aerogel for adsorption and catalysis, comprising adsorbing at pH of 6 with mass ratio between graphene metal-based aerogel and substance to be adsorbed is 0.5-5 g/l (preferably 1 g/l) at room temperature (preferably 25 degrees C), and carrying out catalysis in the presence of Fenton's reagent, where the substance to be adsorbed is water containing pollutant, preferably antibiotics.