Efficient hydrolysis of bagasse cellulose to glucose by mesoporous carbon solid acid derived from industrial lignin

Abstract The lignin-derived ordered mesoporous carbon solid acid (LDMC-SO3H) was prepared by evaporation induced self-assembly and sulfonation using Masson pine alkali lignin as carbon source. And LDMC-SO3H was used as catalyst in the hydrolysis of bagasse cellulose (BSC) with crystallinity index of 70.3% pretreated using deep eutectic solvent. A glucose yield of 42.5% was obtained under the optimized conditions of reaction temperature and time of 180 °C and 7 h, initial BSC concentration of 5 mg/mL and catalyst load of 3 mg/mg. In addition, glucose yield decreased to 31.0% after five runs of LDMC-SO3H due to the loss of -SO3H groups.