Microwave-assisted alkali hydrolysis for cellulose isolation from wheat straw: Influence of reaction conditions and non-thermal effects of microwave

文献类型： 外文期刊

第一作者： Liu, Qi

作者： Liu, Qi;He, Wen-Qing;Xia, Xu;Bai, Wen-Bo;Dong, Yan-Yan;Song, Ji-Qing;Liu, Qi;Goffin, Dorothee;Liu, Qi;Richel, Aurore;Goffin, Dorothee;Aguedo, Mario

作者机构：

关键词： Biomass; Microwave; Cellulose isolation; Purity; Structure; Non-thermal effect

期刊名称：CARBOHYDRATE POLYMERS （ 影响因子：9.381； 五年影响因子：8.678 ）

ISSN： 0144-8617

年卷期： 2021 年 253 卷

页码：

收录情况： SCI

摘要： Microwave-assisted hydrolysis has been widely studied for cellulose fiber isolation, but the influence of reaction conditions and the microwave non-thermal effect are not well clarified. In this study, a series of well-designed experiments were carried out to measure the effects of reaction conditions including temperature, duration and alkali concentration. Compared to the other parameters, temperature was more relevant to the cellulose content in fiber. It could reach the maximum purity of 90.66 % when the temperature was up to 140 degrees C. Moreover, the existence of non-thermal effect of microwave has been confirmed through extensive determination and characterization of the fibers obtained from parallel controlled experiments conducted with or without microwave assistance. Approximately 50 %-75 % reduction in reaction time or 67 % of that in chemical costs would be realized under microwave with respect to traditional heating hydrolysis. Therefore, this work provides both deep insight and efficiency strategy into the microwave-assisted cellulose isolation.

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