▎ 摘　　要

NOVELTY - Nano iron oxide graphene composite material is claimed, and is prepared by taking graphene oxide powder dispersed in deionized water, ultrasonically dispersing it uniformly, placing the solution in a three-neck flask, adding anhydrous ethanol and polyethylene glycol, adding certain amount of ferrous sulfate to the solution, stirring and dissolving, adding triethylamine dropwise, continuously stirring and reacting, filtering and washing by anhydrous ethanol thrice, and drying under vacuum to obtain the product. USE - The nano iron oxide graphene composite material is useful for adsorbing ciprofloxacin in water.