▎ 摘　　要

NOVELTY - Preparation of hydrate-graphene composite material comprises adding graphene oxide with 5-20 times distilled water, ultrasonically dissolving to obtain sol, adding 5-40 wt.% trivalent iron salt, stirring, adjusting pH to 7-8 with metal alkali solution, stirring for 10-60 minutes, centrifuging to separate precipitate, washing with deionized water for 2-5 times, and drying to 40-580 degrees C. USE - Method for preparation of hydrate-graphene composite material used as water dephosphorization adsorbent (claimed). ADVANTAGE - The method is simple, easy to control and environment-friendly compared to other method, and has low cost. The composite material is easy to recycle, can simultaneously adsorb inorganic phosphorus and organic phosphorus pollutants in bodies of water, and has larger adsorption capacity.