Efficient hydrolysis of cellulose to glucose in water by agricultural residue-derived solid acid catalyst

文献类型： 外文期刊

第一作者： Su, Jialei

作者： Su, Jialei;Qiu, Mo;Shen, Feng;Qi, Xinhua

作者机构：

关键词： Agricultural waste;Cellulose;Glucose;Hydrolysis;Biomass

期刊名称：CELLULOSE （ 影响因子：5.044； 五年影响因子：5.271 ）

ISSN： 0969-0239

年卷期： 2018 年 25 卷 1 期

页码：

收录情况： SCI

摘要： A carbonaceous solid acid catalyst bearing weakly acidic carboxylic and phenolic functional groups was facilely prepared by the pyrolysis of cow dung followed by KOH activation. The prepared carbonaceous material showed low activity for the catalytic hydrolysis of raw cellulose in water (3.6% glucose yield). However, after the cellulose was pretreated by mixing with the carbonaceous catalyst in a ball mill, cellulose hydrolysis afforded a high glucose yield of 59.3% in water at 200 degrees C, and the glucose yield increased to 74% under the same reaction conditions in 0.015 wt% HCl aqueous solution. The increases were attributed to the decrease in degree of crystallinity of the cellulose, as well as good contact between the catalytic domain in the catalyst and the beta-1,4-glycosidic bonds in the cellulose molecules by the mix-milling pretreatment. This work provides a promising strategy for efficient cellulose hydrolysis in water by a weakly acidic solid catalyst prepared from the agricultural residues.

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