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

doi:10.1021/acssuschemeng.7b01526

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

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English
Pages (from-to)	1-6
Number of pages	6
Journal	ACS Sustainable Chemistry & Engineering
Early online date	17 Jun 2017
DOIs	https://doi.org/10.1021/acssuschemeng.7b01526
Publication status	E-pub ahead of print - 17 Jun 2017

Bibliographical note

© 2017 American Chemical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.

Access to Document

10.1021/acssuschemeng.7b01526

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© 2017 American Chemical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details.
Accepted author manuscript, 4.81 MB

Cite this

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abstract = "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.",

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AU - Liu, Chuan-Fu

AU - Shi, Qing-Shan

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