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- Title
Ultra-Fast Degradation of Chemical Warfare Agents Using MOF-Nanofiber Kebabs.
- Authors
Zhao, Junjie; Lee, Dennis T.; Yaga, Robert W.; Hall, Morgan G.; Barton, Heather F.; Woodward, Ian R.; Oldham, Christopher J.; Walls, Howard J.; Peterson, Gregory W.; Parsons, Gregory N.
- Abstract
The threat associated with chemical warfare agents (CWAs) motivates the development of new materials to provide enhanced protection with a reduced burden. Metal-organic frame-works (MOFs) have recently been shown as highly effective catalysts for detoxifying CWAs, but challenges still remain for integrating MOFs into functional filter media and/or protective garments. Herein, we report a series of MOF-nanofiber kebab structures for fast degradation of CWAs. We found TiO2 coatings deposited via atomic layer deposition (ALD) onto polyamide-6 nanofibers enable the formation of conformal Zr-based MOF thin films including UiO-66, UiO-66-NH2, and UiO-67. Cross-sectional TEM images show that these MOF crystals nucleate and grow directly on and around the nanofibers, with strong attachment to the substrates. These MOF-functionalized nanofibers exhibit excellent reactivity for detoxifying CWAs. The half-lives of a CWA simulant compound and nerve agent soman (GD) are as short as 7.3 min and 2.3 min, respectively. These results therefore provide the earliest report of MOF-nanofiber textile composites capable of ultra-fast degradation of CWAs.
- Subjects
CHEMICAL warfare agents; CHEMICAL decomposition; NANOFIBERS; METAL-organic frameworks; ATOMIC layer deposition; POLYAMIDES
- Publication
Angewandte Chemie, 2016, Vol 128, Issue 42, p13418
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201606656