A Lignin-Derived Carbonaceous Acid for Efficient Catalytic Hydrolysis of Cellulose  

作　　者：Linhuo Gan Jundong Zhu 

机构地区：[1]College of Chemical Engineering,Huaqiao University,Xiamen,361021,China [2]College of Chemical Engineering,Huaqiao University,Jimei Avenue 668,Jimei District,Xiamen 361021,China

出　　处：《Journal of Bioresources and Bioproducts》2018年第4期160-165,共6页生物质资源与工程（英文）

基　　金：the financial support from the Natural Science Foundation of Fujian Province,China(2015J01055);the Scientific Research Allowance of Huaqiao University of China(13BS417);the Open Foundation of Guangdong Provincial Engineering Research Center of Green Fine Chemicals of China.

摘　　要：1A solid acid catalyst was prepared from masson pine alkali lignin in waste liquor of soda pulping by a combined process of chemical activation,carbonization,and sulfonation.The lignin-derived solid acid(LDSA)was characterized by FESEM,XRD,FTIR,TGA,XPS,BET analyses,and acid-base back titration.The carbonaceous material had high thermal stability and large specific surface area(488.4 m^(2)/g),and the structural analyses showed that it was composed of amorphous carbon bearing-SO_(3)H,-COOH,and phenolic-OH groups.The lignin-derived catalyst was then applied to the hydrolysis of a microcrystalline cellulose(MCC)in aqueous system,and the yield of total reducing sugars was found to be 46.1%.It was proposed that good adsorption capacities of cellulose and desorption property of glucose on LDSA probably contributed to efficient catalytic hydrolysis.

关 键 词：LIGNIN CELLULOSE Carbon-based solid acid CATALYSIS HYDROLYSIS 

分 类 号：O64[理学—物理化学]