Study on cellulose hydrolysis catalyzed by porous straw carbon sulfonic acid
Porous straw carbon sulfonic acid was prepared by carbonization-activation for cellulose hydrolysis using corn stover as the raw material and NaOH as the pore-forming agent.The characterization of PSCSA by XRD,FTIR,BET and SEM showed that PSCSA was an amorphous carbon structure with some weak graphite crystals,and contains hydroxyl(-OH),carboxyl(-COOH),sulfonic acid group(-SO3H),and the surface is porous morphology.When the addition amount of porous straw carbon sulfonic acid was 2.5g·g-1(cellulose)and the concentration of substrate cellulose was 3mg·mL-1,the yield of reducing sugar obtained from cellulose hydrolysis catalyzed by porous straw carbon sulfonic acid was up to 60.61％at 190℃ for 1 hour.
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