▎ 摘　　要

NOVELTY - Method for preparing graphene wave-absorbing material, involves (a) grinding graphite oxide, dispersing graphite oxide into ethylene glycol aqueous solution, adding ferric iron salt and reducing agent, evenly mixing, adding chemical reducing agent of graphene oxide to obtain a mixture, where the mass ratio of ferric iron salt to graphite oxide is 1:(1-20), the mass ratio of ferric salt and reducing agent is 1:(0.5-2), and the mass ratio of graphite oxide and graphene oxide chemical reducing agent is 1:(0.01-0.5), and (b) adding the mixture into a PTFE reaction kettle, controlling the temperature to 120-250 degrees C, reacting for 3-24 hours, filtering, washing and drying to obtain the product. USE - The method is useful for preparing graphene wave-absorbing material. ADVANTAGE - The method is completed in a one-step reaction, reduces the pollution introduced into the final material, and prevents the agglomeration of the graphene sheets by the one-step method.