▎ 摘　　要

NOVELTY - Superparamagnetic graphene oxide/sodium alginate composite gel material is made of superparamagnetic graphene oxide and sodium alginate solution under the condition of 55-65 degrees C through ultrasonic reaction. The weight ratio of the superparamagnetic graphene oxide and the sodium alginate solution is 1:4. The ratio of sodium alginate to water in the sodium alginate solution is 2:5. USE - Superparamagnetic graphene oxide/sodium alginate composite gel material for removing inorganic phosphate from water (claimed), and for recycling adsorption materials. ADVANTAGE - The superparamagnetic graphene oxide/sodium alginate composite gel material improves the dispersion effect of magnetic nano material, solves the phenomenon that magnetic nano particles are easy to agglomerate together and cannot be effectively dispersed, and enhances the adsorption effect. The gel material can absorb phosphate from eutrophic water body while avoiding the secondary pollution problem caused by the continuous repeated existence of phosphorus element in the water body, and has a good application prospect in the removal of pollutants in the water body. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing superparamagnetic graphene oxide/sodium alginate composite gel material, which involves adjusting pH of the graphene oxide aqueous solution to 11 with ammonia, adding ferrous chloride tetrahydrate (FeCl2 4H2O), and stirring for 4 hours in a water bath at 80 degrees C; washing the product with distilled water by centrifugation, and vacuum drying at room temperature for 12 hours to obtain superparamagnetic graphene oxide; and adding sodium alginate solution to the container, adding superparamagnetic graphene oxide while stirring at 60 degrees C, reacting and sonicating, dropping the solution into the calcium chloride solution in a drop-wise manner to obtain the desired product.