Effective Hydrolysis of Cellulose into Glucose over Sulfonated Sugar-Derived Carbon in an Ionic Liquid
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- 作者：Min Liu ; Songyan Jia ; Yanyan Gong ; Chunshan Song ; Xinwen Guo
- 刊名：Industrial & Engineering Chemistry Research
- 出版年：2013
- 出版时间：June 19, 2013
- 年：2013
- 卷：52
- 期：24
- 页码：8167-8173
- 全文大小：293K
- 年卷期：v.52,no.24(June 19, 2013)
- ISSN：1520-5045
文摘
Sulfonated sucrose-derived carbon, glucose-derived carbon, and nut shell activated carbon (NSAC) catalysts were prepared and characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray photoelectron spectroscopy (XPS). FT-IR and XPS spectra showed that 鈭扴O3H groups could be introduced into the carbon precursors after the sulfonation treatment. Higher concentration of 鈭扴O3H groups in the sulfonated sucrose-carbon and glucose-carbon most likely accounts for their higher activities compared to sulfonated NSAC. Hydrolysis of microcrystalline cellulose was examined in a common ionic liquid, 1-butyl-3-methylimidazolium chloride ([BMIM]Cl), with the sulfonated carbon catalysts. Maximum yields of glucose (59%) and total products (80%, defined as the sum of glucose, cellobiose, and 5-hydroxymethylfurfural) could be obtained with sulfonated sucrose-carbon at 120 掳C for 4 h. With a regeneration procedure, the catalyst could be reused.