Journal
SMALL
Volume 17, Issue 33, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.202101639
Keywords
amorphous nanosheets; chemical warfare agents; core-shell structure; electrospun nanofibers; zirconium hydroxide
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Funding
- National Natural Science Foundation of China [21961132024, 51925302, 51873029]
- Innovation Program of Shanghai Municipal Education Commission [2017-01-07-00-03-E00024]
- Program of Shanghai Academic Research Leader [18XD1400200]
- Fundamental Research Funds for the Central Universities [CUSF-DH-D-2018028, CUSF-DH-D-2020003]
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A surface-confined strategy for the direct growth of vertically aligned zirconium hydroxide nanosheets on nanofibers was reported, showing superior catalytic performance to degrade nerve agent simulants. The resulting membrane-type nanofibrous membranes exhibit integrated properties of exceptional breathability, flexibility, and fatigue resistance, providing a novel route for manufacturing new classes of nanosheet-supported membranes for chemical-protective materials.
Organophosphorus-based chemical warfare agents (CWAs) are highly poisonous, and recent attacks using nerve agents have stimulated researchers to develop breakthrough materials for their fast degradation. Zr-based materials have been identified as the most effective catalysts for breaking down CWAs, but in their powdered form, their practical application in personal protective equipment is limited. Herein, a surface-confined strategy for the direct growth of vertically aligned zirconium hydroxide (Zr(OH)(4)) nanosheets with ultrathin and tortuous structures on nanofibers is reported. The freestanding Zr(OH)(4) nanosheet-assembled nanofibrous membranes (NANMs) show superior catalytic performance to degrade dimethyl methylphosphonate, a nerve agent simulant, with a half-life of 4 min. In addition, intriguing membrane-type NANMs feature integrated properties of exceptional breathability, prominent flexibility, and robust fatigue resistance over one million buckling loads. This facile strategy provides a novel route to manufacture new classes of nanosheet-supported membranes for chemical-protective materials, in particular for gas filters, protective suits, and clothing.
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