▎ 摘　　要

NOVELTY - Preparing biomass graphene involves drying, crushing, and sieving the hydrolyzed residue of kitchen waste, mixing the kitchen waste hydrolyzed residue with carbonate, placing the mixture obtained into a tube furnace for pyrolysis, using an inert gas protective atmosphere, washing the crude product obtained with dilute hydrochloric acid solution and deionized water in sequence until the pH of the washing liquid is neutral and drying to obtain product. USE - Method for preparing biomass graphene used as an adsorbent and potassium peroxymonosulfonate catalyst to treat organic pollutants (claimed). ADVANTAGE - The method improves the utilization rate of the waste biomass resource and the conversion benefit of kitchen garbage hydrolysis residue.