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Ultrapermeable Composite Membranes Enhanced Via Doping with Amorphous MOF Nanosheets by Min Liu; Ke Xie; Mitchell D. Nothling; Lianhai Zu; Shenlong Zhao; Dalton J.E. Harvie; Qiang Fu; Paul A. Webley; Greg G. Qiao is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.
What is Ultrapermeable Composite Membranes Enhanced Via Doping with Amorphous MOF Nanosheets about?
Thin-film composite (TFC) polymeric membranes have attracted increasing interest to meet the demands of industrial gas separation. However, the development of high-performance TFC membranes within their current configuration faces two key challenges: (i) the thickness-dependent gas permeability of polymeric materials (mainly poly(dimethylsiloxane) (PDMS)) and (ii) the geometric restriction effect due to the limited pore accessibility of the underlying porous substrate. Here we demonstrate that the incorporation of trace amounts (∼1.8 wt %) of amorphous metal-organic framework (MOF) nanosheets into the gutter layer of TFC assemblies can simultaneously address these two limitations by the creation of rapid, transmembrane gas diffusion pathways. The resultant PDMS&MOF membrane displayed excellent CO 2 permeance of 10450 GPU and CO 2 /N 2 selectivity of 9.1. Leveraging this strategy, we successfully fabricate a novel TFC membrane, consisting of a PDMS&MOF gutter and an ultrathin (∼54 nm) poly(ethylene glycol) top selective layer via surface-initiated atom transfer radical polymerization. The complete TFC membrane exhibits excellent processability and remarkable CO 2 /N 2 separation per
Who reads Ultrapermeable Composite Membranes Enhanced Via Doping with Amorphous MOF Nanosheets?
It is typically read by researchers, students, and practitioners in Biochemistry, Genetics and Molecular Biology.
- Author
- Min Liu; Ke Xie; Mitchell D. Nothling; Lianhai Zu; Shenlong Zhao; Dalton J.E. Harvie; Qiang Fu; Paul A. Webley; Greg G. Qiao
- Publisher
- American Chemical Society (ACS)
- Published
- 2021
- Language
- EN
- Field
- Biochemistry, Genetics and Molecular Biology (Physical Sciences)