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Updated: Jul 4, 2025
Electrophoretic Crystallization of Ultrathin High-performance Metal-organic Framework Membranes
Published on: August 16, 2018
A novel threefold interpenetrated zirconium metal-organic framework exhibiting separation ability for strong acids
Kyoko Shiraishi1, Kazuya Otsubo2, Kenichi Kato3
1Department of Applied Chemistry, Faculty of Science Division I, Tokyo University of Science 1-3 Kagurazaka Shinjuku-ku Tokyo 162-8601 Japan sadakiyo@rs.tus.ac.jp.
Abstract:
We report on the synthesis and selective adsorption property of a novel threefold interpenetrated Zr-based metal-organic framework (MOF), [Zr12O8(OH)8(HCOO)15(BPT)3] (BPT3- = [1,1'-biphenyl]-3,4',5-tricarboxylate) (abbreviated as Zr-BPT). This MOF shows a high tolerance to acidic conditions and has permanent pores, the size of which (approx. <5.6 Å) is the smallest ever reported among porous Zr-based MOFs with high acid tolerance. Zr-BPT selectively adsorbs aryl acids due to its strong affinity for them and exhibits separation ability, even between strong acid molecules, such as sulfonic and phosphonic acids. This is the first demonstration of a MOF exhibiting selective adsorption and separation ability for strong acids.
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