Air oxidation of sulfur mustard gas simulants using a pyrene-based metal-organic framework photocatalyst.
metal-organic frameworks
oxidation
photocatalysis
singlet oxygen
sulfur mustard gas
Journal
Beilstein journal of nanotechnology
ISSN: 2190-4286
Titre abrégé: Beilstein J Nanotechnol
Pays: Germany
ID NLM: 101551563
Informations de publication
Date de publication:
2019
2019
Historique:
received:
26
08
2019
accepted:
03
12
2019
entrez:
11
1
2020
pubmed:
11
1
2020
medline:
11
1
2020
Statut:
epublish
Résumé
We demonstrate a microporous metal-organic framework NU-400 based on a 2,7-disubstituted pyrene linker as a highly efficient photosensitizer for generating singlet oxygen and subsequent oxidative degradation of chemical warfare agents (CWAs). The high activity of NU-400 permits photocatalytic conversion of the 2-chloroethyl ethyl sulfide (CEES) mustard gas simulant into a benign sulfoxide derivative, in air, with less than 15 minutes' half-life. This is a considerable improvement to NU-1000, based on a 1,3,6,8-tetrasubstituted pyrene unit, demonstrating how variation of the substitution pattern of a metal-organic framework linker permits modification of its photoactive behavior.
Identifiants
pubmed: 31921520
doi: 10.3762/bjnano.10.232
pmc: PMC6941406
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2422-2427Informations de copyright
Copyright © 2019, Ayoub et al.; licensee Beilstein-Institut.
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