▎ 摘　　要

NOVELTY - A graphene rotary brush has a stem and graphene solid bristles. The graphene rotary brush is rod-shaped or long-handle-shaped brush. The graphene solid bristles are provided at the end of the graphene rotary brush. The length of the graphene solid bristles is 1/3-2/3 of stem. USE - Graphene rotary brush (claimed). ADVANTAGE - The graphene rotary brush has improved adsorption effect on graphene, and recovery rate of graphene is improved, and is economically prepared by a simple process using easily available raw material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphene rotary brush, which involves preparing 2-10 mg/mL aqueous solution of graphene oxide, mixing the aqueous solution and ascorbic acid in mass ratio of 1:6-1:8, stirring uniformly, obtaining mixed solution, taking bar-shaped or long handle-shaped brush rod with a length of 20-50 cm, vertically soaking the front end of the brush rod into the mixed solution, fixing the brush rod in the mixed solution, heating the solution fixed with the brush rod at 70-90 degrees C for 10-30 minutes, taking the brush rod out, and cleaning the brush rod by using deionized water for 3-5 times.