▎ 摘　　要

NOVELTY - Catalytic method of high-dispersion sulfonated graphene oxide involves adding N,N-dimethyl acetamide with strong electron donating ability in water, ultrasonically dispersing sulfonated graphene oxide, and improving electro-negativity of sulfonated graphene oxide surface. USE - Method for catalyzing high-dispersion sulfonated graphene oxide used as solid acid catalyst for catalyzing and degrading cellulose (claimed). ADVANTAGE - The method is simple, easy and controllable, and has high yield and easy to separate and recycle catalyst and can be used repeatedly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for degradation of cellulose comprising adding high-dispersion sulfonated graphene oxide solution with 20-50 mg cellulose in reaction kettle at 80-130 degrees C, reacting for 8-24 hours, cooling reaction liquid, centrifuging, and taking supernatant for analysis for total reducing sugar yield and glucose yield.