▎ 摘　　要

NOVELTY - The utility model relates to the technical field of chemical experiment apparatus, and claims a device for preparing graphene by graphene oxide, comprising a main body, the bottom wall of the main body is fixedly mounted with a rotating disc; the bottom of the rotating disc is provided with a base; the top wall of the base is embedded with a bearing; the top wall surface of the bearing and the top wall surface of the base are located on the same plane; the inner wall of the bearing is fixedly mounted with a rotating shaft; the position of the top wall of the rotating disc close to the right side is provided with a pneumatic pump; the bottom wall of the pneumatic pump is fixedly installed with the position of the top wall of the rotating disc close to the right side. In the utility model, the graphene oxide for preparing graphene device, through pneumatic control telescopic rod, telescopic rod control injector quantitative adding potassium permanganate solution into the beaker, avoids the manual dropping cannot accurately adding high acid solution of the measurement caused by the reaction failure.