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 TiO 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-NH , 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.
The threat associated with chemical warfare agents (CWAs) motivates the development of new materials to providee nhanced protection with ar educed burden. Metalorganic 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 aseries of MOFnanofiber kebab structures for fast degradation of CWAs.W e found TiO 2 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-NH 2 ,a nd UiO-67. Cross-sectional TEM images show that these MOF crystals nucleate and growdirectly on and around the nanofibers,with strong attachment to the substrates.These MOF-functionalized nanofibers exhibit excellent reactivity for detoxifying CWAs.T he half-lives of aC WA simulant compound and nerve agent soman (GD) are as short as 7.3 min and 2.3 min, respectively.T hese results therefore provide the earliest report of MOF-nanofiber textile composites capable of ultra-fast degradation of CWAs.
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