▎ 摘　　要

NOVELTY - Preparing aminated bagasse-graphene composite aerogel involves performing under stirring condition, adding successively graphite, concentrated sulfuric acid, potassium permanganate, deionized water, hydrogen peroxide, deionized water washing to the three-necked flask, centrifuging to neutral, performing ultrasonic peeling to obtain graphene oxide dispersion, using polyethyleneimine and diethylenetriamine to aminate bagasse to obtain aminated bagasse, adding the obtained amination bagasse to the sodium hydroxide and urea mixture, stirring, storing, freezing to obtain an amination bagasse solution, adding graphene oxide dispersion, aminated bagasse solution and ascorbic acid to the reaction kettle, reacting at 90degrees Celsius for 2 hours, soaking in deionized water to neutrality, freezing, and drying to obtain aminated bagasse-graphene composite aerogel. USE - Method for preparing aminated bagasse-graphene composite aerogel used in wastewater treatment (claimed). ADVANTAGE - The prepared aminated bagasse-graphene composite aerogel has a good adsorption effect on heavy metal ion and organic dye.