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High-Performance Polymer-Based Membranes for CO2 Separation: Recent Advances and Perspectives.
Huimin Ma1, Xiaoxue Jiang1, Nianwei Man1
1State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China.
Membranes
|June 25, 2026
Summary
Polymer membranes for carbon dioxide (CO2) separation are advancing rapidly. This review covers dense, microporous, and mixed matrix membranes (MMMs), highlighting challenges and future directions for energy-efficient CO2 capture.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Growing demand for energy-efficient carbon dioxide (CO2) separation technologies.
- Significant progress in polymer-based CO2 separation membranes over the last decade.
- Need for effective solutions in sustainable carbon management.
Purpose of the Study:
- To systematically review three main classes of polymer-based CO2 separation membranes.
- To analyze their transport mechanisms, benefits, and limitations.
- To identify future research directions for industrial applicability.
Main Methods:
- Review of conventional dense polymer membranes.
- Examination of microporous polymer membranes.
- Analysis of mixed matrix membranes (MMMs).
Main Results:
- Polymer membranes show promise but face challenges like permeability-selectivity trade-offs, physical aging, and scalability.
- Distinct transport mechanisms identified for each membrane class.
- Laboratory successes have not yet translated to widespread industrial adoption.
Conclusions:
- Future research should focus on stable microporous polymer design and scalable ultrathin membrane fabrication.
- Advancements in mixed matrix membranes (MMMs) towards continuous hybrid architectures are crucial.
- Integrating materials innovation with engineering practicality will enable polymer membranes for sustainable carbon management.
