Modified activated carbon material, preparation method and use thereof

The invention provides a modified activated carbon material which comprises activated carbon particles and a graphene sheet layer adsorbed onto the activated carbon particles. According to the invention, a graphene material is used for modifying activated carbon; the graphene material and the activated carbon are crosslinked at least partially by a covalent bond to achieve a purpose of firmly binding the graphene material to the activated carbon and play roles of increasing a specific surface area and enhancing adsorption capacity of the activated carbon; from a perspective of dispersibility,the graphene material and the activated carbon are firmly and effectively combined to reduce the dispersibility of the graphene material and improve the uniformity of the modified activated carbon material during use; and the reduced graphene oxide-modified activated carbon material has enhanced conductivity, increased specific surface area and good dispersibility. 本发明提供种改性活性炭材料，其特征在于，所述改性活性炭材料包括活性炭粒子，以及吸附在所述活性炭粒子上的石墨烯片层。