▎ 摘　　要

NOVELTY - The magnetic graphene adsorbent material comprises lanthanum oxide, polyphosphazene, nano iron oxide and graphene nanoparticles. USE - Magnetic graphene adsorbent material for adsorbing phosphorus in water. ADVANTAGE - The magnetic graphene adsorbent material has excellent adsorption properties, provides very fast and efficient processing on large area in waters of phosphorus pollution, and can be prepared in a simple, cost-effective and eco-friendly manner under mild conditions. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing magnetic graphene adsorbent material, which involves: (A) mixing graphene oxide, iron (III) chloride hexahydrate and iron (II) chloride tetrahydrate in a molar ratio 1:2-2:1 under ultrasonic dispersion in deionized water in nitrogen protection atmosphere followed by addition of aqueous ammonia; (B) adding hydrazine hydrate at 95 degrees C for 4-12 hours to obtain graphene loaded iron (III) oxide; (C) dispersing the resulting graphene loaded iron (III) oxide in 4,4'-diaminodiphenylmethane and tetrahydrofuran under ultrasound at room temperature to 85 degrees C for 2-12 hours; (D) adding the resulting product in 4,4'-diaminodiphenylmethane and hexachloro cyclotriphosphazene to obtain polyphosphazene doped iron (III) oxide; and (E) mixing the obtained olyphosphazene doped iron (III) oxide in lanthanum nitrate and polyethylene glycol under ultrasonic dispersion in a high temperature reactor at 150-200 degrees C for 12-48 hours to give the magnetic graphene adsorbent material.