Monitoring the crystalline structure of sugar cane bagasse in aqueous ionic liquids

Avtar Singh Matharu, Ming-Jie Chen, Xue-Qin Zhang, Rui-Min Li, Chuan-Fu Liu, Qing-Shan Shi

Research output: Contribution to journalArticlepeer-review


The use of aqueous ionic liquids as a pretreatment for enhancing enzymatic saccharification of lignocellulosic biomass is well-known with focus on lignin and hemicellulose removal. However, an in-depth knowledge of changes in cellulose crystallinity during the pretreatment is limited. To this effect, detailed FT-IR, CP/MAS 13C NMR and XRD studies sugarcane bagasse pretreated with aqueous ionic liquids is presented. Secondary-derivatives of FT-IR spectra and Gauss deconvolution of XRD patterns were applied to give detailed understanding of sugarcane bagasse cellulose crystalline changes upon the pretreatment. The results showed that aqueous ionic liquids pretreatment destroys the semi-crystalline region of sugarcane bagasse cellulose, thus disordering the orientation of cellulose crystallite.
Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalACS Sustainable Chemistry & Engineering
Early online date17 Jun 2017
Publication statusE-pub ahead of print - 17 Jun 2017

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