▎ 摘　　要

NOVELTY - Preparation of reduced graphene oxide comprises mixing reductant with aqueous solution of graphene oxide in the absence of oxygen, using a high-energy ray for irradiating so as to perform radiation reduction reaction, and then, obtaining reduced graphene oxide. The reductant is alcohol having 1-8C atoms. The mixed solution is the solution containing graphene oxide, reductant and water. USE - A preparation method of reduced graphene oxide (claimed). ADVANTAGE - Problems that the current preparation method is high in temperature, toxic, low in efficiency, and high in energy consumption, are solved. The method is highly efficient, economic and environmental-friendly; has no any decorative treatment on the reduced graphene oxide before grafting and no special reagent; has simple operation, wide application range and is capable of realizing large-scale massive production. The reduced graphene oxide has improved conductivity and wider application field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for reduced graphene oxide prepared by the above preparation method.