Air oxidation of sulfur mustard gas simulants using a pyrene-based metal–organic framework photocatalyst

Autor: Ghada Ayoub, Mihails Arhangelskis, Xuan Zhang, Florencia Son, Timur Islamoglu, Tomislav Friščić, Omar K. Farha
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 2422-2427 (2019)
Druh dokumentu: article
ISSN: 2190-4286
DOI: 10.3762/bjnano.10.232
Popis: 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.
Databáze: Directory of Open Access Journals