▎ 摘　　要

NOVELTY - Preparing non-metallic catalyst comprises (a) ultrasonically stripping 1.6-2 mg/ml graphene oxide aqueous solution for 8 hours to obtain graphene oxide working solution, (b) reducing graphene oxide working solution by hydrothermal method, filtering, and freeze-drying to obtain hydrothermal rGraphene oxide (rGO), and (c) placing hydrothermal rGO in inert atmosphere, raising temperature to 600-900℃ at rate of 2-5℃/minutes and keeping for 2 hours, and naturally cooling to obtain non-metallic catalyst. USE - The method is useful in preparing non-metallic catalyst for liquid-phase hydrogenation of nitroaromatics, preferably nitrobenzene, o-chloronitrobenzene, m-chloronitrobenzene, p-chloronitrobenzene, o-nitrotoluene, m-nitrotoluene, p-nitrotoluene, o-nitrobenzaldehyde, p-nitrobenzaldehyde, p-nitrophenol, m-nitrophenol, p-nitroaniline or p-nitroacetophenone (all claimed). ADVANTAGE - The method: can overcome problems of metal active component poisoning, catalyst deactivation caused by dissolution and environmental pollution in liquid phase hydrogenation reaction of metal hydrogenation catalyst; has easily available raw materials; is simple, and economical; has good cycle performance, which expands industrial application of graphene materials in catalysts. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: non-metallic catalyst, prepared by above method. use of non-metallic catalyst in liquid-phase hydrogenation catalytic reaction of nitroaromatics, where the catalyst and nitroaromatics is added into reaction solvent, and the catalytic reaction is carried out in presence of hydrogen.