Production and characterization of lignin containing nanocellulose from luffa through an acidic deep eutectic solvent treatment and systematic fractionation |
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Author: | Hong, Shu1,2; Song, Yandan1; Yuan, Yang1; |
Organizations: |
1College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China 2Fibre and Particle Engineering Research Unit, University of Oulu, P.O. Box 4300, FI-90014, Finland |
Format: | article |
Version: | accepted version |
Access: | open |
Online Access: | PDF Full Text (PDF, 1.6 MB) |
Persistent link: | http://urn.fi/urn:nbn:fi-fe2022021018496 |
Language: | English |
Published: |
Elsevier,
2020
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Publish Date: | 2022-02-10 |
Description: |
AbstractIn this study, lignin and hemicelluloses were partially separated from non-wood biomass of luffa sponge using an acidic deep eutectic solvent (ADES) composed of choline chloride and oxalic acid dihydrate, and the obtained cellulose-rich residue was further disintegrated into lignin containing cellulose nanocrystal (OA-CNC) and nanofiber (OA-CNF) fractions with a two-step ultrasonication treatment. The ADES had a dual purpose: to produce fractions of biomass and to accelerate the nanofibrillation of cellulose. Under optimal reaction conditions (at 90 °C for 150 min), solid fractions with cellulose content of 76.4 wt% (initially 51.8 wt%) and residual lignin content of 10.7 wt% (initially 17.8 wt%) were achieved. Ultrasonication resulted in lignin containing nanocelluloses with a high total yield (59.1 wt% vs. 50.5 wt% from reference 60% sulfuric acid hydrolysis). They consisted mainly of elongated cellulose nanofibers (OA-CNF) with an average diameter of 28 nm. The OA-CNF were further converted to flexible and foldable self-standing films with tensile strength of 134 MPa and elongation at break of 10.6%. This simplified method also presents great potential for using biomass waste (e.g., wheat straw, branches, and sawdust) to produce lignin containing nanocellulose. see all
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Series: |
Industrial crops and products |
ISSN: | 0926-6690 |
ISSN-E: | 1872-633X |
ISSN-L: | 0926-6690 |
Volume: | 143 |
Article number: | 111913 |
DOI: | 10.1016/j.indcrop.2019.111913 |
OADOI: | https://oadoi.org/10.1016/j.indcrop.2019.111913 |
Type of Publication: |
A1 Journal article – refereed |
Field of Science: |
215 Chemical engineering 220 Industrial biotechnology 216 Materials engineering 221 Nanotechnology |
Subjects: | |
Funding: |
This research was supported by grants from the National Natural Science Foundation of China (31370567), the Doctorate Fellowship Foundation of Nanjing Forestry University, the National First-Class disciplines, the Priority Academic Program Development of Jiangsu Higher Education Institutions, and the Academy of Finland project “Bionanochemicals” (298295). |
Academy of Finland Grant Number: |
298295 |
Detailed Information: |
298295 (Academy of Finland Funding decision) |
Copyright information: |
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http:/creativecommons.org/licenses/by-nc-nd/4.0/ |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |