TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions
Chitosan (CS) membranes have been widely applied in water/ethanol separation via membrane-based pervaporation, but a bottleneck in the practical application always exists due to their severe swelling behavior in aqueous solution and consequently low permeation flux due to the large membrane thicknes...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2023-01-01
|
| Series: | Advanced Membranes |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772823423000039 |
| _version_ | 1797356884400799744 |
|---|---|
| author | Qing Xia Tengyang Zhu Zhengze Chai Yan Wang |
| author_facet | Qing Xia Tengyang Zhu Zhengze Chai Yan Wang |
| author_sort | Qing Xia |
| collection | DOAJ |
| description | Chitosan (CS) membranes have been widely applied in water/ethanol separation via membrane-based pervaporation, but a bottleneck in the practical application always exists due to their severe swelling behavior in aqueous solution and consequently low permeation flux due to the large membrane thickness. Here, thin film composite (TFC) hollow fiber (HF) membrane with an in-situ-crosslinked ultrathin CS selective layer is developed via multiple supramolecular interaction-crosslinking strategy for efficient water/ethanol separation via pervaporation. With Fe3+-phytic acid (PhA) complex pre-deposited on the substrate, the subsequently introduced CS selective layer is in-situ crosslinked via multiple supramolecular interactions, including coordination, electrostatic, and hydrogen bonding interactions. By varying the cycle number of Fe3+/PhA assembly and the species of employed organophosphorus acid, the anti-swelling properties of the resultant TFC CS membrane is enhanced and the separation performance is maximized. The optimal TFC-CS-Fe2PhA2 membrane with two cycles of Fe3+/PhA assembly has a selective layer thickness of 60 nm and a corresponding ultrahigh flux of 2.87 kg/m2 h, coupled with a permeate water concentration of 99.5 wt% and good long-term stability for the dehydration of 85 wt% ethanol aqueous solution at 50 °C. The supramolecular interaction-crosslinking presented in this work provides an efficient and promising strategy for the construction of TFC CS membrane with excellent anti-swelling property and superior separation performance. |
| first_indexed | 2024-03-08T14:35:20Z |
| format | Article |
| id | doaj.art-85775aa95fd04beaad4d449aa9fc4904 |
| institution | Directory Open Access Journal |
| issn | 2772-8234 |
| language | English |
| last_indexed | 2024-03-08T14:35:20Z |
| publishDate | 2023-01-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Advanced Membranes |
| spelling | doaj.art-85775aa95fd04beaad4d449aa9fc49042024-01-12T04:57:54ZengKeAi Communications Co. Ltd.Advanced Membranes2772-82342023-01-013100062TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactionsQing Xia0Tengyang Zhu1Zhengze Chai2Yan Wang3Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science & Technology), Ministry of Education, Wuhan, 430074, PR China; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, 430074, PR ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science & Technology), Ministry of Education, Wuhan, 430074, PR China; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, 430074, PR ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science & Technology), Ministry of Education, Wuhan, 430074, PR China; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, 430074, PR ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science & Technology), Ministry of Education, Wuhan, 430074, PR China; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science & Technology, Wuhan, 430074, PR China; Corresponding author. Key Laboratory of Material Chemistry for Energy Conversion and Storage (Huazhong University of Science & Technology), Ministry of Education, Wuhan, 430074, PR China.Chitosan (CS) membranes have been widely applied in water/ethanol separation via membrane-based pervaporation, but a bottleneck in the practical application always exists due to their severe swelling behavior in aqueous solution and consequently low permeation flux due to the large membrane thickness. Here, thin film composite (TFC) hollow fiber (HF) membrane with an in-situ-crosslinked ultrathin CS selective layer is developed via multiple supramolecular interaction-crosslinking strategy for efficient water/ethanol separation via pervaporation. With Fe3+-phytic acid (PhA) complex pre-deposited on the substrate, the subsequently introduced CS selective layer is in-situ crosslinked via multiple supramolecular interactions, including coordination, electrostatic, and hydrogen bonding interactions. By varying the cycle number of Fe3+/PhA assembly and the species of employed organophosphorus acid, the anti-swelling properties of the resultant TFC CS membrane is enhanced and the separation performance is maximized. The optimal TFC-CS-Fe2PhA2 membrane with two cycles of Fe3+/PhA assembly has a selective layer thickness of 60 nm and a corresponding ultrahigh flux of 2.87 kg/m2 h, coupled with a permeate water concentration of 99.5 wt% and good long-term stability for the dehydration of 85 wt% ethanol aqueous solution at 50 °C. The supramolecular interaction-crosslinking presented in this work provides an efficient and promising strategy for the construction of TFC CS membrane with excellent anti-swelling property and superior separation performance.http://www.sciencedirect.com/science/article/pii/S2772823423000039In-situ crosslinked chitosan layerPhytic acid-metal ion complexSupramolecular interactionPervaporationThin film composite hollow fiber membrane |
| spellingShingle | Qing Xia Tengyang Zhu Zhengze Chai Yan Wang TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions Advanced Membranes In-situ crosslinked chitosan layer Phytic acid-metal ion complex Supramolecular interaction Pervaporation Thin film composite hollow fiber membrane |
| title | TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions |
| title_full | TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions |
| title_fullStr | TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions |
| title_full_unstemmed | TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions |
| title_short | TFC membrane with in-situ crosslinked ultrathin chitosan layer for efficient water/ethanol separation enabled by multiple supramolecular interactions |
| title_sort | tfc membrane with in situ crosslinked ultrathin chitosan layer for efficient water ethanol separation enabled by multiple supramolecular interactions |
| topic | In-situ crosslinked chitosan layer Phytic acid-metal ion complex Supramolecular interaction Pervaporation Thin film composite hollow fiber membrane |
| url | http://www.sciencedirect.com/science/article/pii/S2772823423000039 |
| work_keys_str_mv | AT qingxia tfcmembranewithinsitucrosslinkedultrathinchitosanlayerforefficientwaterethanolseparationenabledbymultiplesupramolecularinteractions AT tengyangzhu tfcmembranewithinsitucrosslinkedultrathinchitosanlayerforefficientwaterethanolseparationenabledbymultiplesupramolecularinteractions AT zhengzechai tfcmembranewithinsitucrosslinkedultrathinchitosanlayerforefficientwaterethanolseparationenabledbymultiplesupramolecularinteractions AT yanwang tfcmembranewithinsitucrosslinkedultrathinchitosanlayerforefficientwaterethanolseparationenabledbymultiplesupramolecularinteractions |