Highly Water-Stable Zirconium Metal-Organic Framework UiO-66 Membranes Supported on Alumina Hollow Fibers for Desalination

Liu, Xinlei, Demir, Nilay Keser, Wu, Zhentao and Li, Kang (2015). Highly Water-Stable Zirconium Metal-Organic Framework UiO-66 Membranes Supported on Alumina Hollow Fibers for Desalination. Journal of the American Chemical Society, 137 (22), pp. 6999-7002.

Abstract

In this study, continuous zirconium(IV)-based metal-organic framework (Zr-MOF) membranes were prepared. The pure-phase Zr-MOF (i.e., UiO-66) polycrystalline membranes were fabricated on alumina hollow fibers using an in situ solvothermal synthesis method. Single-gas permeation and ion rejection tests were carried out to confirm membrane integrity and functionality. The membrane exhibited excellent multivalent ion rejection (e.g., 86.3% for Ca2+, 98.0% for Mg2+, and 99.3% for Al3+) on the basis of size exclusion with moderate permeance (0.14 L m-2 h-1 bar-1) and good permeability (0.28 L m-2 h-1 bar-1 μm). Benefiting from the exceptional chemical stability of the UiO-66 material, no degradation of membrane performance was observed for various tests up to 170 h toward a wide range of saline solutions. The high separation performance combined with its outstanding water stability suggests the developed UiO-66 membrane as a promising candidate for water desalination.

Publication DOI: https://doi.org/10.1021/jacs.5b02276
Divisions: Engineering & Applied Sciences > Polymer and advanced materials research group
Engineering & Applied Sciences
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Additional Information: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of the American Chemical Society, © 2015 American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see http://dx.doi.org/10.1021/jacs.5b02276.
Uncontrolled Keywords: Catalysis,Chemistry(all),Biochemistry,Colloid and Surface Chemistry
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://pubs.ac ... 21/jacs.5b02276 (Publisher URL)
Published Date: 2015-06-10
Authors: Liu, Xinlei
Demir, Nilay Keser
Wu, Zhentao ( 0000-0002-4934-8046)
Li, Kang

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