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Effective low-temperature hydrolysis of cellulose catalyzed by concentrated H3PW12O40 under microwave irradiation
Li, Xiutao; Jiang, Yijun; Wang, Lili; Meng, Lingqian; Wang, Wei; Mu, Xindong
2012
发表期刊RSC ADVANCES
卷号2期号:17页码:6921-6925
摘要

Concentrated H3PW12O40 (HPW) was first employed to decompose cellulose under microwave irradiation at low temperatures. 75.6% yield of glucose was obtained at 90 °C under microwave irradiation for 3 h, which was considerably high under such mild conditions using phosphotungstic acid as a catalyst. With the same effective acid concentration, HPW gave the highest cellulose conversion and glucose yield among the Brønsted acid catalysts, indicating that the strong Brønsted acid played an important role during cellulose hydrolysis. In the hydrolysis of cellulose with HPW as catalysts, microwave irradiation led to higher glucose yields than the conventional heating method. The recovery and reusability of HPW were investigated by extraction with diethyl ether from the reaction solution. At the same time, the performance of the concentrated HPW for real lignocellulosic biomass (corncob, corn stover and bagasse) hydrolysis was also investigated.



Graphical abstract: Effective low-temperature hydrolysis of cellulose catalyzed by concentrated H3PW12O40 under microwave irradiation
; Concentrated H3PW12O40 (HPW) was first employed to decompose cellulose under microwave irradiation at low temperatures. 75.6% yield of glucose was obtained at 90 degrees C under microwave irradiation for 3 h, which was considerably high under such mild conditions using phosphotungstic acid as a catalyst. With the same effective acid concentration, HPW gave the highest cellulose conversion and glucose yield among the Bronsted acid catalysts, indicating that the strong Bronsted acid played an important role during cellulose hydrolysis. In the hydrolysis of cellulose with HPW as catalysts, microwave irradiation led to higher glucose yields than the conventional heating method. The recovery and reusability of HPW were investigated by extraction with diethyl ether from the reaction solution. At the same time, the performance of the concentrated HPW for real lignocellulosic biomass (corncob, corn stover and bagasse) hydrolysis was also investigated.
文章类型Article
学科领域绿色化学催化
WOS标题词Science & Technology ; Physical Sciences
DOI10.1039/c2ra21022c
关键词[WOS]CLOSTRIDIUM-BEIJERINCKII ; ACID CATALYST ; GLUCOSE ; TRANSFORMATION ; ENZYME ; SO3H ; COOH
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000306669300032
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/1401
专题绿色化学催化研究组
作者单位Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Shandong, Peoples R China
推荐引用方式
GB/T 7714
Li, Xiutao,Jiang, Yijun,Wang, Lili,et al. Effective low-temperature hydrolysis of cellulose catalyzed by concentrated H3PW12O40 under microwave irradiation[J]. RSC ADVANCES,2012,2(17):6921-6925.
APA Li, Xiutao,Jiang, Yijun,Wang, Lili,Meng, Lingqian,Wang, Wei,&Mu, Xindong.(2012).Effective low-temperature hydrolysis of cellulose catalyzed by concentrated H3PW12O40 under microwave irradiation.RSC ADVANCES,2(17),6921-6925.
MLA Li, Xiutao,et al."Effective low-temperature hydrolysis of cellulose catalyzed by concentrated H3PW12O40 under microwave irradiation".RSC ADVANCES 2.17(2012):6921-6925.
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