▎ 摘　　要

NOVELTY - Preparation of graphene oxide material with asymmetric structure includes uniformly dispersing graphene oxide in water, adjusting the pH with an acid, adding salt and paraffin, heating to melt the paraffin, maintaining the heating state, homogenizing or ultrasonically processing to form oil/water type emulsion, cooling, centrifuging, obtaining graphene oxide microspheres having surface coated with paraffin, dispersing in water solution of ethyl alcohol, adding amino modifier, reacting under stirring condition at room temperature, separating the product and washing with ethyl alcohol. USE - Preparation of graphene oxide material with asymmetric structure. ADVANTAGE - The method is simple and conducted in mild condition, uses inexpensive and easy to obtain raw materials and provides graphene oxide with adjustable surface structure. DETAILED DESCRIPTION - Preparation of graphene oxide material with asymmetric structure comprises uniformly dispersing graphene oxide in water to prepare 0.01-2% water solution, adjusting the pH with an acid at 1-6, adding salt, which is 1-20 times the mass of graphene oxide, adding paraffin, which is 30-100 times the weight of graphene oxide, heating to melt the paraffin, maintaining the heating state, homogenizing or ultrasonically processing to form oil/water type emulsion, cooling, centrifuging, obtaining graphene oxide microspheres having surface coated with paraffin, where particle size is 1-200 mu m, dispersing 1-100 mass% graphene oxide microspheres having surface coated with paraffin in 5-30 mass% water solution of alcohol i.e. ethyl alcohol, adding 0.5-20 mass% amino modifier, reacting under stirring condition for 1-24 hours at room temperature, after reaction is over, separating the product, repeatedly washing with ethyl alcohol for 2-4 times, obtaining modified graphene oxide microspheres coated with paraffin, completely dissolving in 5-20 times by mass of organic solvent, centrifuging and washing to obtain the product.