Textile/Metal-Organic-Framework Composites as Self-Detoxifying Filters for Chemical-Warfare Agents

The current technology of air‐filtration materials for protection against highly toxic chemicals, that is, chemical‐warfare agents, is mainly based on the broad and effective adsorptive properties of hydrophobic activated carbons. However, adsorption does not prevent these materials from behaving as...

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Bibliographic Details
Published in:Angewandte Chemie 2015-06, Vol.127 (23), p.6894-6898
Main Authors: López-Maya, Elena, Montoro, Carmen, Rodríguez-Albelo, L. Marleny, Aznar Cervantes, Salvador D., Lozano-Pérez, A. Abel, Cenís, José Luis, Barea, Elisa, Navarro, Jorge A. R.
Format: Article
Language:eng ; ger
Subjects:
Adsorbents
Adsorption
Alkoxides
Biological & chemical weapons
Catalytic activity
Chemistry
Contamination
Filters
Filters (fluid)
Heterogene Katalyse
Hydrolyse
Lithium
Metal-organic frameworks
Metall-organische Gerüstmaterialien
Nervenkampfstoffe
Seidenfibroin
Textiles
Toxicology
Zirconium
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Summary:The current technology of air‐filtration materials for protection against highly toxic chemicals, that is, chemical‐warfare agents, is mainly based on the broad and effective adsorptive properties of hydrophobic activated carbons. However, adsorption does not prevent these materials from behaving as secondary emitters once they are contaminated. Thus, the development of efficient self‐cleaning filters is of high interest. Herein, we report how we can take advantage of the improved phosphotriesterase catalytic activity of lithium alkoxide doped zirconium(IV) metal–organic framework (MOF) materials to develop advanced self‐detoxifying adsorbents of chemical‐warfare agents containing hydrolysable PF, PO, and CCl bonds. Moreover, we also show that it is possible to integrate these materials onto textiles, thereby combining air‐permeation properties of the textiles with the self‐detoxifying properties of the MOF material. MOF‐Filter: Die Insertion von Lithiumalkoxiden in Zirconium‐haltige Metall‐organische Gerüste (MOF) und deren Abscheidung auf Seidenfasern führt zu Sicherheitsstoffen, die in der Lage sind, chemische Kampfmittel zu entgiften. Die Stoffe kombinieren die luftdurchlässige Eigenschaft der Textilien mit der katalytischen Phosphotriesteraseaktivität des MOF für die Hydrolyse von P‐F‐, P‐O‐ und C‐Cl‐Bindungen.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201502094