Building high-performance mixed matrix membranes from stable COF colloids for CO <sub>2</sub> /N <sub>2</sub> separation
A "retardation & solvation" strategy was developed for synthesizing stable β-ketoenamine-linked covalent organic framework (COF) colloids. Their mixed matrix membranes (MMMs) with a Pebax-1657 matrix exhibited exceptional gas separation performance with a CO<sub>2</sub> permeability up to 322 Barrer and a CO<sub>2</sub>/N<sub>2</sub> selectivity over 72.1. These represent improvements of 4.25 and 1.49-fold over the pristine Pebax-1657 membrane under identical conditions, closely approaching the 2019 Robeson upper boundary.
Authors
- Guipeng Yu (ORCID: https://orcid.org/0000-0001-8712-0512)
- Baosheng Wei (ORCID: https://orcid.org/0000-0002-2708-2435)
- Shuai Gu (ORCID: https://orcid.org/0000-0001-5322-6976)
- Chenxiang Ai
- Juntao Tang (ORCID: https://orcid.org/0000-0002-7398-3605)
- Chunyue Pan
- Qixin Guo (ORCID: https://orcid.org/0000-0002-9471-2353)
- Yufei Liu (ORCID: https://orcid.org/0009-0000-0454-2016)
- Hu Cui (ORCID: https://orcid.org/0000-0001-7525-9285)
- Feng Zhang (ORCID: https://orcid.org/0009-0002-6968-2970)
- Qingyang Zou
Institutions
- Central South University (CN)
- Hunan University (CN)
- Nankai University (CN)
- The First People's Hospital of Changde (CN)
Publication Details
- Journal
- Chemical Communications
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5cc03304g
- Primary Topic
- Covalent Organic Framework Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.00