Fourier transform infrared spectroscopy analysis for hydrothermal transformation of microcrystalline cellulose on montmorillonite
Article
Article Title | Fourier transform infrared spectroscopy analysis for hydrothermal transformation of microcrystalline cellulose on montmorillonite |
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ERA Journal ID | 4316 |
Article Category | Article |
Authors | Wu, Lin Mei (Author), Tong, Dong Shen (Author), Zhao, Li Zhi (Author), Yu, Wei Hua (Author), Zhou, Chun Hui (Author) and Wang, Hao (Author) |
Journal Title | Applied Clay Science |
Journal Citation | 95, pp. 74-82 |
Number of Pages | 9 |
Year | 2014 |
Place of Publication | Amsterdam, Netherlands |
ISSN | 0169-1317 |
1872-9053 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.clay.2014.03.014 |
Abstract | Specifying the interactions between montmorillonite and cellulose is helpful for understanding the evolution of biomass in soil and the geological formation of fossil fuels in nature. In this work, Fourier transform infrared spectroscopy was used to investigate the hydrothermal transformation of microcrystalline cellulose on montmorillonite. A series of samples were obtained from hydrothermal treatments of microcrystalline cellulose with montmorillonite in various ratios at 200°C for 16h. The resulting solid samples were analyzed by using Fourier transform infrared (FTIR) spectroscopy. The subtle changes before and after hydrothermal treatments were particularly studied by using mathematical methods to generate second derivatives of absorbance spectra. It was found that there were interactions between montmorillonite and microcrystalline cellulose during the hydrothermal process. In the presence of montmorillonite, the cellulose was transformed to yield a product with aliphatic CHx and aromatic groups. These were further confirmed by the FTIR spectra of the samples which were further treated by using an HCl/HF acid solution to remove the montmorillonite in them (demineralization). The structural parameters ('A Factor', 'C Factor' and CH3/CH2 ratio) were calculated. The values of the 'A Factor' and CH3/CH2 ratio of the resulting solid samples increased with the increase of montmorillonite. The values of 'C Factor' were little affected by the montmorillonite minerals. The findings suggested that montmorillonite-assisted hydrothermal treatment of cellulose was able to produce kerogen analogs. |
Keywords | clay minerals; curve-fitting analysis; Fourier transform infrared spectroscopy; microcrystalline cellulose; montmorillonite |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
490406. Lie groups, harmonic and Fourier analysis | |
310602. Bioprocessing, bioproduction and bioproducts | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang University of Technology, China |
Institute for Agriculture and the Environment | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2771/fourier-transform-infrared-spectroscopy-analysis-for-hydrothermal-transformation-of-microcrystalline-cellulose-on-montmorillonite
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