▎ 摘　　要

NOVELTY - Preparing chitosan/aminated graphene oxide nano composite membrane adsorbent comprises (i) adding 100 mg graphite oxide into 100 ml distilled water, stirring uniformly, dispersing ultrasonically for a specific time, centrifuging in a high-speed centrifuge and taking a specific amount of supernatant; (ii) adding a specific amount of ethylenediamine into graphene oxide solution under stirring, heating the mixed solution under magnetic stirring, reacting and dialyzing the mixed solution for 24 hours to a conductivity of 0; (iii) adding the mixed solution into chitosan acetic acid solution with a specific mass fraction, mechanically stirring for 6 hours, allowing to stand and defoaming, scraping a film by casting method, drying and placing in alkaline solution for 30 minutes; and (iv) repeatedly washing composite film to neutrality with a large amount of distilled water and drying the composite film in a vacuum drying box. USE - The method is useful for preparing chitosan/aminated graphene oxide nano composite membrane adsorbent. ADVANTAGE - The method is simple, the raw materials are environmentally friendly and the adsorption effect of the product on cupric ion is enhanced.