▎ 摘　　要

NOVELTY - The preparation method of aminated graphene-sodium alginate composite gel spheres involves ultrasonically dispersing graphene oxide powder in aqueous solution to form graphene oxide solution, adding sodium alginate and amino thiourea into alkaline aqueous solution, ultrasonically stirring until forming uniform solution, dripping dispersed graphene oxide solution into sodium alginate solution in volume ratio of 1:2, uniformly mixing, adding crosslinking agent, uniformly stirring, absorbing the mixed solution by burette, and dripping ferric trichloride solution at uniform speed. USE - Preparation method of aminated graphene-sodium alginate composite gel spheres (claimed). ADVANTAGE - The method enables preparation of aminated graphene-sodium alginate composite gel spheres, prevents the agglomeration of the graphene powder, and removes the pollutants such as dye and phosphate.