Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation
Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic f...
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KeAi Communications Co. Ltd.
2025-01-01
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| Series: | Advanced Membranes |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772823425000247 |
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| author | Zhibin Ma Peitong Lian Jie Li Yanxiong Ren Yonghui Shi Hanze Ma Yuhang Guo Qianfeng Pan Sheng Yuan Yutong Wang Heyang Liu Lixuan Liu Yuao Dong Yanlei Su Jing Zhao Quanfu An Guangwei He Zhongyi Jiang |
| author_facet | Zhibin Ma Peitong Lian Jie Li Yanxiong Ren Yonghui Shi Hanze Ma Yuhang Guo Qianfeng Pan Sheng Yuan Yutong Wang Heyang Liu Lixuan Liu Yuao Dong Yanlei Su Jing Zhao Quanfu An Guangwei He Zhongyi Jiang |
| author_sort | Zhibin Ma |
| collection | DOAJ |
| description | Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic framework (COF, TpBD-CH3) into PDMS membranes to prepare mixed matrix membranes (MMMs), greatly increasing ethanol flux by 2.7 times. Under testing conditions of 60 °C with a feed solution containing 5 wt% ethanol in water, the permeation flux of the membrane incorporating 0.1 wt% TpBD-CH3 significantly increased from 1738 g/(m2·h) to 4648 g/(m2·h) compared to the original PDMS membrane, while the separation factor improved from 7.32 to 8.40. The improved separation performance is attributed to that the incorporation of the COF enhances the hydrophobicity as well as the free volume cavities of the membranes as evidenced by the significantly increased gas permeability (CO2 permeability reaches 26,720 Barrer). This study indicates the potential of COF in the development of PDMS-based MMMs for the separation of organic aqueous solutions or gas components. |
| format | Article |
| id | doaj-art-a97a756d247b465ab9e4f3f6e4e9f27f |
| institution | OA Journals |
| issn | 2772-8234 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co. Ltd. |
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| series | Advanced Membranes |
| spelling | doaj-art-a97a756d247b465ab9e4f3f6e4e9f27f2025-08-20T02:31:54ZengKeAi Communications Co. Ltd.Advanced Membranes2772-82342025-01-01510015010.1016/j.advmem.2025.100150Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separationZhibin Ma0Peitong Lian1Jie Li2Yanxiong Ren3Yonghui Shi4Hanze Ma5Yuhang Guo6Qianfeng Pan7Sheng Yuan8Yutong Wang9Heyang Liu10Lixuan Liu11Yuao Dong12Yanlei Su13Jing Zhao14Quanfu An15Guangwei He16Zhongyi Jiang17Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, ChinaBeijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, ChinaBeijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China; Corresponding author. Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China.Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, 30 Puzhu Road, Nanjing, 211816, ChinaBeijing Key Laboratory for Green Catalysis and Separation, Department of Chemical Engineering, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, ChinaKey Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China; Corresponding author. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China.Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China; Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China; Corresponding author. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, China.Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and selectivity. In this study, we reported the incorporation of methyl-functionalized covalent organic framework (COF, TpBD-CH3) into PDMS membranes to prepare mixed matrix membranes (MMMs), greatly increasing ethanol flux by 2.7 times. Under testing conditions of 60 °C with a feed solution containing 5 wt% ethanol in water, the permeation flux of the membrane incorporating 0.1 wt% TpBD-CH3 significantly increased from 1738 g/(m2·h) to 4648 g/(m2·h) compared to the original PDMS membrane, while the separation factor improved from 7.32 to 8.40. The improved separation performance is attributed to that the incorporation of the COF enhances the hydrophobicity as well as the free volume cavities of the membranes as evidenced by the significantly increased gas permeability (CO2 permeability reaches 26,720 Barrer). This study indicates the potential of COF in the development of PDMS-based MMMs for the separation of organic aqueous solutions or gas components.http://www.sciencedirect.com/science/article/pii/S2772823425000247PervaporationCovalent organic frameworkMixed matrix membraneBioethanolPDMS |
| spellingShingle | Zhibin Ma Peitong Lian Jie Li Yanxiong Ren Yonghui Shi Hanze Ma Yuhang Guo Qianfeng Pan Sheng Yuan Yutong Wang Heyang Liu Lixuan Liu Yuao Dong Yanlei Su Jing Zhao Quanfu An Guangwei He Zhongyi Jiang Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation Advanced Membranes Pervaporation Covalent organic framework Mixed matrix membrane Bioethanol PDMS |
| title | Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation |
| title_full | Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation |
| title_fullStr | Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation |
| title_full_unstemmed | Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation |
| title_short | Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation |
| title_sort | mixed matrix membranes by incorporating methyl functionalized covalent organic framework into pdms for high flux ethanol water separation |
| topic | Pervaporation Covalent organic framework Mixed matrix membrane Bioethanol PDMS |
| url | http://www.sciencedirect.com/science/article/pii/S2772823425000247 |
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