Covalent organic framework membranes for efficient separation of monovalent cations
Tianjin University · Collaborative Innovation Center of Chemical Science and Engineering Tianjin · +7 more institutions
Abstract
Abstract Covalent organic frameworks (COF), with rigid, highly ordered and tunable structures, can actively manipulate the synergy of entropic selectivity and enthalpic selectivity, holding great potential as next-generation membrane materials for ion separations. Here, we demonstrated the efficient separation of monovalent cations by COF membrane. The channels of COF membrane are decorated with three different kinds of acid groups. A concept of confined cascade separation was proposed to elucidate the separation process. The channels of COF membrane comprised two kinds of domains, acid-domains and acid-free-domains. The acid-domains serve as confined stages, rendering high selectivity, while the…
Citation impact
- FWCI
- 17.48
- Percentile
- 100%
- References
- 37
Authors
15- HWHongjian WangCorresponding
Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering Tianjin
- YZYeming Zhai
Tianjin University, Unité Matériaux et Transformations
- YLYang Li
Tianjin University
- YCYu Cao
Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering Tianjin
- BSBenbing Shi
Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering Tianjin
Topics & keywords
- Selectivity
- Membrane
- Permeation
- Covalent organic framework
- Covalent bond
- Chemistry
- Ion
- Chemical engineering
- Clean water and sanitation
Funding
- LULanzhou UniversityAward: lzujbky-2021-kb06
- NNNational Natural Science Foundation of ChinaAwards: BP0618007, 2021YFB3802200, 21838008
- NUNanjing University
- NLNational Laboratory of Solid State Microstructures, Nanjing University
- NKNational Key Research and Development Program of ChinaAward: 2021YFB3802200
- P2Project 211Award: BP0618007