Finely Tuned Submicroporous Thin-Film Molecular Sieve Membranes for Highly Efficient Fluid Separations
Type
ArticleAuthors
Ali, Zain
Ghanem, Bader
Wang, Yingge
Pacheco Oreamuno, Federico

Ogieglo, Wojciech
Vovusha, Hakkim
Genduso, Giuseppe
Schwingenschlögl, Udo

Han, Yu

Pinnau, Ingo

KAUST Department
Advanced Membranes and Porous Materials Research CenterChemical Engineering Program
Chemical Science Program
Computational Physics and Materials Science (CPMS)
Material Science and Engineering Program
Nanostructured Functional Materials (NFM) laboratory
Physical Science and Engineering (PSE) Division
KAUST Grant Number
BAS/1/1323-01-01Date
2020-04-21Online Publication Date
2020-04-21Print Publication Date
2020-06Embargo End Date
2021-04-22Submitted Date
2020-02-17Permanent link to this record
http://hdl.handle.net/10754/662615
Metadata
Show full item recordAbstract
Polymeric membranes with increasingly high permselective performances are gaining a significant role in lowering the energy burden and improving the environmental sustainability of complex chemical separations. However, the commercial deployment of newly designed materials with promising intrinsic properties for fluid separations has been stalled by challenges associated with fabrication and scale up of low-cost, high-performance, defect-free thin-film composite (TFC) membranes. Here, a facile method to fabricate next-generation TFC membranes using a bridged-bicyclic triptycene tetra-acyl chloride (Trip) building block with a large fraction of finely tuned structural submicroporosity (pore size < 4 Å) is demonstrated. The TFCs exhibit superb potential for removal of small (≈200 g mol−1) organic microcontaminants from organic solvent streams by showing both improved rejection and permeance in organic systems compared to current state-of-the-art commercial membranes. The TFCs also display unprecedented properties for desalination applications with performance located far above the current water permeance/sodium chloride rejection trendline. The strategy of using highly contorted triptycene building blocks with well-defined interconnected internal free volume elements establishes a scalable, generalized approach to fabricate highly selective, submicroporous TFC membranes for a wide variety of challenging energy-intensive fluid separations.Citation
Ali, Z., Ghanem, B. S., Wang, Y., Pacheco, F., Ogieglo, W., Vovusha, H., … Pinnau, I. (2020). Finely Tuned Submicroporous Thin-Film Molecular Sieve Membranes for Highly Efficient Fluid Separations. Advanced Materials, 2001132. doi:10.1002/adma.202001132Sponsors
The research reported in this publication was supported by funding (BAS/1/1323-01-01) from King Abdullah University of Science and Technology (KAUST). The authors would like to thank Dr. Tiara Puspasari for her help with collecting electrokinetic data.Publisher
WileyJournal
Advanced MaterialsAdditional Links
https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.202001132ae974a485f413a2113503eed53cd6c53
10.1002/adma.202001132