Jump to main content
Jump to site search


Flexible Self-Supported Metal-Organic Frameworks Membranes with Exception High Porosity for Enhanced Separation and Catalysis

Abstract

Porous membranes/mats with both the high porosity and flexibility are strongly required for practical applications. Metal-organic frameworks (MOFs) are excellent candidates owing to their ultra-high porosity compared to most of the porous materials. However, the intrinsic fragility of MOFs crystals drives the fabrication of flexible MOF-only membranes/mats to be rather challenging. This article presents a facile and general strategy to prepare flexible self-supported MOF-only mats that have exceptionally high porosity compared with the reported flexible membranes/mats (even remarkably higher than that of MOFs powders), and can be produced on a large scale, easily manipulated, and highly adaptive for a variety of uses. A wide range of flexible MOFs mats including MIL-53(Al), MIL-53(Al)-NH2, HKUST-1, ZIF-8, ZIF-67, UiO-66 and MIL-88B(Fe) have been prepared by the complete phase transformation of electrospun fibrous metal oxide mats. The hierarchical porous structure endows the mats with extra large surface area, excellent pore accessibility and efficient mass transport. Water treatment, air filtration and catalytic applications have been demonstrated, revealing the significantly enhanced performance of the flexible self-supported MOFs mats over supported ones and/or MOFs powders . This work overcomes the longstanding challenge of processing pure MOFs into a flexible and tailorable form, opens a new opportunity for MOF-only materials in high-performance devices, and greatly broadens the scope of functional membranes/mats.

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Sep 2017, accepted on 10 Oct 2017 and first published on 12 Oct 2017


Article type: Communication
DOI: 10.1039/C7TA08210J
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Flexible Self-Supported Metal-Organic Frameworks Membranes with Exception High Porosity for Enhanced Separation and Catalysis

    H. Liang, X. Jiao, C. Li and D. Chen, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA08210J

Search articles by author

Spotlight

Advertisements