Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation
Mixed matrix membranes (MMMs) have demonstrated significant promise in energy-intensive gas separations by amalgamating the unique properties of fillers with the facile processability of polymers. However, achieving a simultaneous enhancement of permeability and selectivity remains a formidable chal...
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KeAi Communications Co., Ltd.
2025-01-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025724000657 |
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| author | Muning Chen Jiemei Zhou Jing Ma Weigang Zheng Guanying Dong Xin Li Zhihong Tian Yatao Zhang Jing Wang Yong Wang |
| author_facet | Muning Chen Jiemei Zhou Jing Ma Weigang Zheng Guanying Dong Xin Li Zhihong Tian Yatao Zhang Jing Wang Yong Wang |
| author_sort | Muning Chen |
| collection | DOAJ |
| description | Mixed matrix membranes (MMMs) have demonstrated significant promise in energy-intensive gas separations by amalgamating the unique properties of fillers with the facile processability of polymers. However, achieving a simultaneous enhancement of permeability and selectivity remains a formidable challenge, due to the difficulty of achieving an optimal match between polymers and fillers. In this study, we incorporate a porous carbon-based zinc oxide composite (C@ZnO) into high-permeability polymers of intrinsic microporosity (PIMs) to fabricate MMMs. The dipole–dipole interaction between C@ZnO and PIMs ensures their exceptional compatibility, mitigating the formation of non-selective voids in the resulting MMMs. Concurrently, C@ZnO with abundant interconnected pores can provide additional low-resistance pathways for gas transport in MMMs. As a result, the CO2 permeability of the optimized C@ZnO/PIM-1 MMMs is elevated to 13,215 barrer, while the CO2/N2 and CO2/CH4 selectivity reached 21.5 and 14.4, respectively, substantially surpassing the 2008 Robeson upper bound. Additionally, molecular simulation results further corroborate that the augmented membrane gas selectivity is attributed to the superior CO2 affinity of C@ZnO. In summary, we believe that this work not only expands the application of MMMs for gas separation but also heralds a paradigm shift in the application of porous carbon materials. |
| format | Article |
| id | doaj-art-c90bde328add48c6b2f95c0dec80eb94 |
| institution | Kabale University |
| issn | 2468-0257 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj-art-c90bde328add48c6b2f95c0dec80eb942025-01-05T04:28:27ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572025-01-01101203213Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separationMuning Chen0Jiemei Zhou1Jing Ma2Weigang Zheng3Guanying Dong4Xin Li5Zhihong Tian6Yatao Zhang7Jing Wang8Yong Wang9School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, ChinaState Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu, ChinaSchool of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, ChinaSchool of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, ChinaSchool of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, ChinaSingapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore, 637141, SingaporeEngineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, Henan, China; Corresponding authors.School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, China; State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450001, ChinaSchool of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, Henan, China; State Key Laboratory of Coking Coal Resources Green Exploitation, Zhengzhou University, Zhengzhou 450001, China; Corresponding authors.State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemical Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu, China; School of Energy and Environment, Southeast University, Nanjing, 210096, Jiangsu, ChinaMixed matrix membranes (MMMs) have demonstrated significant promise in energy-intensive gas separations by amalgamating the unique properties of fillers with the facile processability of polymers. However, achieving a simultaneous enhancement of permeability and selectivity remains a formidable challenge, due to the difficulty of achieving an optimal match between polymers and fillers. In this study, we incorporate a porous carbon-based zinc oxide composite (C@ZnO) into high-permeability polymers of intrinsic microporosity (PIMs) to fabricate MMMs. The dipole–dipole interaction between C@ZnO and PIMs ensures their exceptional compatibility, mitigating the formation of non-selective voids in the resulting MMMs. Concurrently, C@ZnO with abundant interconnected pores can provide additional low-resistance pathways for gas transport in MMMs. As a result, the CO2 permeability of the optimized C@ZnO/PIM-1 MMMs is elevated to 13,215 barrer, while the CO2/N2 and CO2/CH4 selectivity reached 21.5 and 14.4, respectively, substantially surpassing the 2008 Robeson upper bound. Additionally, molecular simulation results further corroborate that the augmented membrane gas selectivity is attributed to the superior CO2 affinity of C@ZnO. In summary, we believe that this work not only expands the application of MMMs for gas separation but also heralds a paradigm shift in the application of porous carbon materials.http://www.sciencedirect.com/science/article/pii/S2468025724000657Mixed matrix membranesPolymers of intrinsic microporosityCO2 separationPorous carbon materials |
| spellingShingle | Muning Chen Jiemei Zhou Jing Ma Weigang Zheng Guanying Dong Xin Li Zhihong Tian Yatao Zhang Jing Wang Yong Wang Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation Green Energy & Environment Mixed matrix membranes Polymers of intrinsic microporosity CO2 separation Porous carbon materials |
| title | Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation |
| title_full | Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation |
| title_fullStr | Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation |
| title_full_unstemmed | Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation |
| title_short | Merging polymers of intrinsic microporosity and porous carbon-based zinc oxide composites in novel mixed matrix membranes for efficient gas separation |
| title_sort | merging polymers of intrinsic microporosity and porous carbon based zinc oxide composites in novel mixed matrix membranes for efficient gas separation |
| topic | Mixed matrix membranes Polymers of intrinsic microporosity CO2 separation Porous carbon materials |
| url | http://www.sciencedirect.com/science/article/pii/S2468025724000657 |
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