Format

Send to

Choose Destination
Science. 2017 Jun 16;356(6343). pii: eaab0530. doi: 10.1126/science.aab0530.

Maximizing the right stuff: The trade-off between membrane permeability and selectivity.

Author information

1
Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of Korea.
2
Department of Chemical Engineering, Texas Materials Institute, Center for Research in Water Resources, and Center for Energy and Environmental Research, The University of Texas at Austin, 10100 Burnet Road, Building 133 (CEER), Austin, TX 78758, USA.
3
Department of Materials Science and Engineering, Lehigh University, 1801 Mill Creek Road, Macungie, PA 18062, USA.
4
Department of Chemical and Environmental Engineering, Yale University, New Haven, CT 06520-8286, USA.
5
Department of Chemical Engineering, Texas Materials Institute, Center for Research in Water Resources, and Center for Energy and Environmental Research, The University of Texas at Austin, 10100 Burnet Road, Building 133 (CEER), Austin, TX 78758, USA. freeman@che.utexas.edu.

Abstract

Increasing demands for energy-efficient separations in applications ranging from water purification to petroleum refining, chemicals production, and carbon capture have stimulated a vigorous search for novel, high-performance separation membranes. Synthetic membranes suffer a ubiquitous, pernicious trade-off: highly permeable membranes lack selectivity and vice versa. However, materials with both high permeability and high selectivity are beginning to emerge. For example, design features from biological membranes have been applied to break the permeability-selectivity trade-off. We review the basis for the permeability-selectivity trade-off, state-of-the-art approaches to membrane materials design to overcome the trade-off, and factors other than permeability and selectivity that govern membrane performance and, in turn, influence membrane design.

PMID:
28619885
DOI:
10.1126/science.aab0530
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for HighWire
Loading ...
Support Center