▎ 摘　　要

NOVELTY - Preparation of graphene oxide polysodium alginate acrylic gel involves putting graphite, sodium nitrate, and potassium permanganate under ice bath state while stirring state, adding concentrated sulfuric acid, continuously stirring for 2-4 hours under ice bath condition, stirring at 35-45 degrees C for 0.5-1 hour, heating to 90 degrees C for 3-4 hours, adding hydrogen peroxide solution, standing for 2-5 hours, centrifuging, washing with deionized water, freeze-drying, and grinding; and dispersing graphene oxide in distilled water and ultrasonically dispersing for 60 minutes. USE - Method for preparing graphene oxide polysodium alginate acrylic gel. ADVANTAGE - The gel has strong swelling effect. DETAILED DESCRIPTION - Preparation of graphene oxide polysodium alginate acrylic gel comprises: (A) putting graphite, sodium nitrate, and potassium permanganate under ice bath state while stirring state, adding concentrated sulfuric acid, continuously stirring for 2-4 hours under ice bath condition, stirring at 35-45 degrees C for 0.5-1 hour, heating to 90 degrees C for 3-4 hours, adding hydrogen peroxide solution, standing for 2-5 hours, centrifuging, washing with deionized water, freeze-drying, and grinding; (B) dispersing graphene oxide in distilled water, ultrasonically dispersing for 60 minutes, and adding 0.1 mol/L sodium hydroxide solution to adjust pH value to 8; (C) adding sodium alginate; and (D) adding 6.25 mol/L sodium hydroxide solution to adjust pH value to pH-9, adding sodium alginate oxide graphene hydrogel, acrylamide monomer, N,N'-methylene bisacrylamide, and potassium peroxydisulfate, stir-reacting for 2-4 hours, and drying at 80 degrees C.