▎ 摘　　要

NOVELTY - Preparing graphene oxide/ferroferric oxide composite material comprises (A) mixing graphene oxide polyol dispersion, trivalent iron source, alkaline regulator, surfactant, and accelerator to obtain a mixed solution; and (B) using the resulting mixed solution, subjecting to a thermal reaction under normal pressure to obtain the graphene oxide/ferroferric oxide composite material. USE - The method is useful for preparing graphene oxide-ferroferric oxide composite material. ADVANTAGE - The method: realizes the thermal reaction of the graphene oxide/ferric oxide composite material under the normal pressure and low temperature by adding the active material and improving the production process, and achieves the uniform distribution of the ferroferric oxide, and effectively avoids the agglomeration of the graphene oxide, does not use high-hazard reducing agent and avoids the environment pollution, has simple and easy to operate technique, and can realize large-scale preparation. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for wave absorbing material comprising graphene oxide-ferroferric oxide composite material.