Nanoscale control of internal inhomogeneity enhances water transport in desalination membranes

Autor:	Biswajit Khara, Steven D. Jons, Enrique D. Gomez, Abhishek Roy, Manish Kumar, Michael Geitner, Tawanda J. Zimudzi, Andrew L. Zydney, Mou Paul, Kaitlyn P. Brickey, Jeffrey Wilbur, Tyler E. Culp, Baskar Ganapathysubramanian
Rok vydání:	2021
Předmět:	Multidisciplinary Water transport Materials science Biological membrane 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Desalination 0104 chemical sciences Active layer Membrane Chemical engineering Permeability (electromagnetism) Polyamide 0210 nano-technology Nanoscopic scale
Zdroj:	Science. 371:72-75
ISSN:	1095-9203 0036-8075
DOI:	10.1126/science.abb8518
Popis:	Finding the path to better desalination Polyamide membranes have been used in large-scale desalination for decades. However, because of the thinness of the membranes and their internal variability, it has been hard to determine which aspects of the membranes most affect their performance. Culp et al. combined electron tomography, nanoscale three-dimensional (3D) polyamide density mapping, and modeling of bulk water permeability with zero adjustable parameters to quantify the effect of 3D nanoscale variations in polymer mass on water transport within the polyamide membrane (see the Perspective by Geise). They found that variability in local density most affects the performance of the membranes. Better synthesis methods could thus improve performance without affecting selectivity. Science , this issue p. 72 ; see also p. 31
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::283034cd569a08ad960511cc813dce3d https://doi.org/10.1126/science.abb8518 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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