A Highly Ordered Nanoporous, Two-Dimensional Covalent Organic Framework with Modifiable Pores, and Its Application in Water Purification and Ion Sieving

The preparation of membranes with high selectivity based on specific chemical properties such as size and charge would impact the efficiency of the world’s energy supply, the production of clean water, and many other separation technologies. We report a flexible synthetic protocol for preparing high...

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Published inJournal of the American Chemical Society Vol. 140; no. 51; pp. 18200 - 18207
Main Authors Kuehl, Valerie A, Yin, Jiashi, Duong, Phuoc H. H, Mastorovich, Bruce, Newell, Brian, Li-Oakey, Katie Dongmei, Parkinson, Bruce A, Hoberg, John O
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 26.12.2018
Amer Chemical Soc
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
CHEMISTRY
MEMBRANES
GRAPHENE OXIDE
CONDUCTION
CRYSTALLINITY
PERMEATION
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Summary:The preparation of membranes with high selectivity based on specific chemical properties such as size and charge would impact the efficiency of the world’s energy supply, the production of clean water, and many other separation technologies. We report a flexible synthetic protocol for preparing highly ordered two-dimensional nanoporous polymeric materials (termed covalent organic frameworks or COFs) that allow for placing virtually any function group within the nanopores. We demonstrate that membranes, fabricated with this new family of materials with carboxylated pore walls, are very water permeable, as well as highly charged and size selective.
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ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.8b11482