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Merging Proline:Xylitol Eutectic Solvent in Crosslinked Chitosan Pervaporation Membranes for Enhanced Water Permeation in Dehydrating Ethanol
Abstract
The scope of this research aims at merging a new deep eutectic mixture (DES) into a biopolymer-based membrane for a pervaporation application in dehydrating ethanol. Herein, an L-proline:xylitol (at 5:1) eutectic mixture was successfully synthesized and blended with chitosan (CS). A complete characterization of the hybrid membranes, in terms of morphology, solvent uptake, and hydrophilicity, has been conducted. As part of their applicability, the blended membranes were assayed for their ability to separate water from ethanolic solutions by means of pervaporation. At the highest temperature (50 °C), a water permeation of ca. 0.46 kg m−2 h−1 was acquired, representing a higher permeation than the pristine CS membranes (ca. 0.37 kg m−2 h−1). Therefore, CS membranes demonstrated an enhanced water permeation thanks to their blending with the hydrophilic L-proline:xylitol agent, making these membranes a good candidate for other separations containing polar solvents.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/membranes13040451
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Membranes
no. 13,
ISSN: 2077-0375 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Castro Munoz R., Plata-Gryl M., Boczkaj G.: Merging Proline:Xylitol Eutectic Solvent in Crosslinked Chitosan Pervaporation Membranes for Enhanced Water Permeation in Dehydrating Ethanol// Membranes -,iss. 13 (2023), s.451-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/membranes13040451
- Sources of funding:
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- COST_FREE
- Verified by:
- Gdańsk University of Technology
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