Acid site-regulated solid acids for polysaccharide Se-functionalization : Structural explanations for high reactivity
Copyright © 2020 Elsevier Ltd. All rights reserved..
In this work, the application of acid site-regulated solid acids in Se-functionalization of polysaccharide is evaluated for the first time, which aimed to further improve reaction efficiency and realize environmentally friendly chemistry. A series prepared MxOy/HZSM-5 catalysts possesses standard crystal structure, large specific surface area, pore volume, aperture as well as strong acidity. An efficient substitution of seleno-group on polysaccharide backbone is promoted by regulating the acid site of solid acids (Se content up to 15,170.49 μg/g) compared with the conventional Se-functionalization method (1703 μg/g). Strong Lewis and Brønsted acid sites lead to the driving forces toward low molecular mass polysaccharide fragments, but the deletion of main monosaccharide components is not observed. In summary, it is proved that solid acid can be employed in acid-dependent polysaccharide Se-functionalization which will promote useful in expanding our understanding of how to further develop polysaccharide resources.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:251 |
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| Enthalten in: |
Carbohydrate polymers - 251(2021) vom: 01. Jan., Seite 117028 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Zhu, Shengyong [VerfasserIn] |
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| Links: |
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| Themen: |
Artemisia sphaerocephala polysaccharide |
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| Anmerkungen: |
Date Completed 05.11.2020 Date Revised 05.11.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.carbpol.2020.117028 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2020 Elsevier Ltd. All rights reserved. | ||
| 520 | |a In this work, the application of acid site-regulated solid acids in Se-functionalization of polysaccharide is evaluated for the first time, which aimed to further improve reaction efficiency and realize environmentally friendly chemistry. A series prepared MxOy/HZSM-5 catalysts possesses standard crystal structure, large specific surface area, pore volume, aperture as well as strong acidity. An efficient substitution of seleno-group on polysaccharide backbone is promoted by regulating the acid site of solid acids (Se content up to 15,170.49 μg/g) compared with the conventional Se-functionalization method (1703 μg/g). Strong Lewis and Brønsted acid sites lead to the driving forces toward low molecular mass polysaccharide fragments, but the deletion of main monosaccharide components is not observed. In summary, it is proved that solid acid can be employed in acid-dependent polysaccharide Se-functionalization which will promote useful in expanding our understanding of how to further develop polysaccharide resources | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Artemisia sphaerocephala polysaccharide | |
| 650 | 4 | |a Se-functionalization | |
| 650 | 4 | |a Solid acid catalyst | |
| 700 | 1 | |a Sun, Yaxu |e verfasserin |4 aut | |
| 700 | 1 | |a Jia, Yue |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Wenyu |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Yuxin |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Ji |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Junlong |e verfasserin |4 aut | |
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