Microwave-assisted solid-state pretreatment for fabrication of hemp fibres using ethanolamine at low temperature
Copyright © 2024. Published by Elsevier Ltd..
Conventional methods faced challenges in pretreating natural cellulose fibres due to their high energy consumption and large wastewater drainage. This research devised an efficient solid-state pretreatment method for pretreating hemp fibres using ethanolamine (ETA) assisted by microwave (MW) heating. This method produced a notable removal rate of lignin (85.4 %) with the highest cellulose content (83.0 %) at a high solid content (30 %) and low temperature (70 °C). Both FT-IR and XRD analyses indicated that the pretreatment did not alter the structure of cellulose within the hemp fibres but increased crystallinity as the CrI increased from 84 % in raw hemp fibre to 89 % in pretreated fibre. As a result, it produced hemp fibres with impressive fineness (4.6 dtex) and breaking strength (3.81 cN/dtex), meeting the requirement of textile fibre. In addition, an improvement in glucose concentration (15.6 %) was observed in enzymatic hydrolysis of the MW pretreated hemp fibres compared to the fibres pretreated without MW. Furthermore, the FT-IR and NMR data confirmed that the amination of lignin occurred even at low temperature, which contributed to the high lignin removal rate. Thus, this study presents a potentially effective energy-saving, and environmentally sustainable solid-state method for pretreating hemp fibres.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:332 |
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| Enthalten in: |
Carbohydrate polymers - 332(2024) vom: 15. März, Seite 121906 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Xia, Wenying [VerfasserIn] |
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| Links: |
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| Themen: |
5KV86114PT |
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| Anmerkungen: |
Date Completed 05.03.2024 Date Revised 05.03.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.carbpol.2024.121906 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Conventional methods faced challenges in pretreating natural cellulose fibres due to their high energy consumption and large wastewater drainage. This research devised an efficient solid-state pretreatment method for pretreating hemp fibres using ethanolamine (ETA) assisted by microwave (MW) heating. This method produced a notable removal rate of lignin (85.4 %) with the highest cellulose content (83.0 %) at a high solid content (30 %) and low temperature (70 °C). Both FT-IR and XRD analyses indicated that the pretreatment did not alter the structure of cellulose within the hemp fibres but increased crystallinity as the CrI increased from 84 % in raw hemp fibre to 89 % in pretreated fibre. As a result, it produced hemp fibres with impressive fineness (4.6 dtex) and breaking strength (3.81 cN/dtex), meeting the requirement of textile fibre. In addition, an improvement in glucose concentration (15.6 %) was observed in enzymatic hydrolysis of the MW pretreated hemp fibres compared to the fibres pretreated without MW. Furthermore, the FT-IR and NMR data confirmed that the amination of lignin occurred even at low temperature, which contributed to the high lignin removal rate. Thus, this study presents a potentially effective energy-saving, and environmentally sustainable solid-state method for pretreating hemp fibres | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Cellulose fibre | |
| 650 | 4 | |a Ethanolamine | |
| 650 | 4 | |a Hemp | |
| 650 | 4 | |a Microwave | |
| 650 | 4 | |a Solid-state pretreatment | |
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| 700 | 1 | |a Anwar, Almas |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Lingyu |e verfasserin |4 aut | |
| 700 | 1 | |a Cao, Zhihao |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Boya |e verfasserin |4 aut | |
| 700 | 1 | |a Nie, Kai |e verfasserin |4 aut | |
| 700 | 1 | |a Zhou, Chengfeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Yuanming |e verfasserin |4 aut | |
| 700 | 1 | |a Han, Guangting |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Wei |e verfasserin |4 aut | |
| 700 | 1 | |a Ben, Haoxi |e verfasserin |4 aut | |
| 700 | 1 | |a Zhao, Tao |e verfasserin |4 aut | |
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