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

Ghada Ayoub, Mihails Arhangelskis, Xuan Zhang, Florencia Son, Timur Islamoglu, Tomislav Friščić*, Omar K. Farha

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number232
Pages (from-to)2422-2427
Number of pages6
JournalBeilstein Journal of Nanotechnology
Volume10
DOIs
StatePublished - 2019

Keywords

  • Metal-organic frameworks
  • Oxidation
  • Photocatalysis
  • Singlet oxygen
  • Sulfur mustard gas

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)
  • Electrical and Electronic Engineering

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