▎ 摘　　要

NOVELTY - Preparing waffle shape adsorbent composite material comprises (1) using graphite, sodium nitrate, concentrated sulfuric acid, potassium permanganate and hydrogen peroxide to prepare graphene oxide solution, (2) selecting ionic liquid with carboxylate, adding the ionic liquid into N,N-dimethylmethanamide aqueous solution, stirring for a period of time, adding the graphene oxide solution obtained in step (1), the volume ratio of the graphene oxide solution and the ionic liquid is 1: 1-10, ultrasonically dispersing to obtain GO-IL solution, (3) dissolving the trimesic acid (H3BTC) in DMF solution, obtaining the first precursor solution, dissolving cupric nitrate Cu (NO3) 2 in the deionized water to obtain the second precursor solution, mixing first and second precursor solution with the GO-IL solution, condensing and refluxing for a period of time in the oil bath to obtain the mixture, filtering the mixture, washing and drying. USE - The method is useful for preparing waffle shape adsorbent composite material. DETAILED DESCRIPTION - Preparing waffle shape adsorbent composite material comprises (1) using graphite, sodium nitrate, concentrated sulfuric acid, potassium permanganate and hydrogen peroxide to prepare graphene oxide solution, (2) selecting ionic liquid with carboxylate, adding the ionic liquid into N,N-dimethylmethanamide aqueous solution, the volume ratio of ionic liquid and DMF aqueous solution is 1: 40-200, stirring for a period of time, adding the graphene oxide solution obtained in step (1), the volume ratio of the graphene oxide solution and the ionic liquid is 1: 1-10, ultrasonically dispersing to obtain GO-IL solution, (3) dissolving the trimesic acid (H3BTC) in DMF solution, obtaining the first precursor solution, dissolving cupric nitrate Cu (NO3) 2 in the deionized water to obtain the second precursor solution, mixing first and second precursor solution with the GO-IL solution obtained in step (2) according to the volume ratio of 20-80: 10-50: 10-50, condensing and refluxing for a period of time in the oil bath to obtain the mixture, filtering the mixture, washing, drying to obtain the final product GO-IL/MOF.