Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1171, Issue -, Pages 639-643Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molstruc.2018.06.066
Keywords
Bamboo powder; Ionic liquid; FT-IR; PCA; PLMW2DCOS
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Funding
- National Natural Science Foundation of China [31370556]
- Beijing Municipality Science and Technology Planning Project [D161100002116001]
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Bamboo powder and its dissolution process in ionic liquids were analyzed according to Fourier Transform Infrared Spectroscopy (FT-IR) coupled with two-dimensional correlation spectroscopy and chemometrics. Second derivative spectroscopy was applied to enhance the spectra resolution, obtaining more molecular vibration information. After executing the principal component analysis (PCA) on ATR-FTIR spectra of undissolved bamboo powder residue, we obtained a three-staged dissolution process model. In addition, the conclusion that cellulose/hemicellulose dissolving prior to lignin was summarized through the PCA loading spectrum. Point-line moving window two dimensional correlation spectroscopy (PL-MW2DCOS) furtherly unveiled the dissolution details. This work provided us a clear dissolution process of biomass using a rapid, label-free and easy-operation method. (C) 2018 Elsevier B.V. All rights reserved.
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