Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide
Carbon molecular sieve (CMS) membranes are very promising for efficient gas separation. In this work, a novel CMS membrane was constructed from the zero-dimension material doped polyimide precursor. The introduction of carbon quantum dots into the polyimide matrix precursor regulated the nanopores s...
| Published in: | Journal of Membrane Science Letters |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-12-01
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| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772421225000145 |
| _version_ | 1849265744846520320 |
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| author | Lujie Sheng Xianglong Zhang Qingdi Mu Hui Li Jizhong Ren |
| author_facet | Lujie Sheng Xianglong Zhang Qingdi Mu Hui Li Jizhong Ren |
| author_sort | Lujie Sheng |
| collection | DOAJ |
| container_title | Journal of Membrane Science Letters |
| description | Carbon molecular sieve (CMS) membranes are very promising for efficient gas separation. In this work, a novel CMS membrane was constructed from the zero-dimension material doped polyimide precursor. The introduction of carbon quantum dots into the polyimide matrix precursor regulated the nanopores structure of the derived CMS membranes precisely for CO2 separation. The PSD (pore size distribution) near 0.35 nm became narrower after the carbon quantum dots incorporation. And, the novel CMS membranes showed attracting enhancement of gas permeability (114.6 Barrer) and selectivity (94.7) for CO2/CH4 separation simultaneously, which broke 2008 upper bound. Furthermore, the zero-dimension materials are the promising fillers to regulate the nanopores structure of the CMS membranes. |
| format | Article |
| id | doaj-art-c709d0b25fec49679aa094cbffd75bcd |
| institution | Directory of Open Access Journals |
| issn | 2772-4212 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Elsevier |
| record_format | Article |
| spelling | doaj-art-c709d0b25fec49679aa094cbffd75bcd2025-09-15T05:22:43ZengElsevierJournal of Membrane Science Letters2772-42122025-12-015210010510.1016/j.memlet.2025.100105Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimideLujie Sheng0Xianglong Zhang1Qingdi Mu2Hui Li3Jizhong Ren4Corresponding authors.; National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaNational Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaNational Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaNational Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaCorresponding authors.; National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, ChinaCarbon molecular sieve (CMS) membranes are very promising for efficient gas separation. In this work, a novel CMS membrane was constructed from the zero-dimension material doped polyimide precursor. The introduction of carbon quantum dots into the polyimide matrix precursor regulated the nanopores structure of the derived CMS membranes precisely for CO2 separation. The PSD (pore size distribution) near 0.35 nm became narrower after the carbon quantum dots incorporation. And, the novel CMS membranes showed attracting enhancement of gas permeability (114.6 Barrer) and selectivity (94.7) for CO2/CH4 separation simultaneously, which broke 2008 upper bound. Furthermore, the zero-dimension materials are the promising fillers to regulate the nanopores structure of the CMS membranes.http://www.sciencedirect.com/science/article/pii/S2772421225000145Gas separationCo2 separationCarbon molecular sieve membraneCarbon quantum dotsZero-dimension materials |
| spellingShingle | Lujie Sheng Xianglong Zhang Qingdi Mu Hui Li Jizhong Ren Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide Gas separation Co2 separation Carbon molecular sieve membrane Carbon quantum dots Zero-dimension materials |
| title | Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide |
| title_full | Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide |
| title_fullStr | Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide |
| title_full_unstemmed | Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide |
| title_short | Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide |
| title_sort | novel carbon molecular sieve membranes for co2 separation derived from the zero dimension carbon quantum dots doped polyimide |
| topic | Gas separation Co2 separation Carbon molecular sieve membrane Carbon quantum dots Zero-dimension materials |
| url | http://www.sciencedirect.com/science/article/pii/S2772421225000145 |
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