abstract
Selectivity control of the decomposition of sulfur mustard (bis(2-chloroethyl)sulfide) under photo-oxidation conditions using molecular oxygen remains a challenge. In this work, the photo-oxidation of a mustard-gas simulant, 2-chloroethyl ethyl sulfide (CEES), was studied using porphyrin-based metal-organic framework (Por-MOFs) catalysts. It is shown that Por-MOFs are selective oxidizing agents in the transformation of CEES into 2-chloroethyl ethyl sulfoxide (CEESO) without the formation of the highly toxic sulfone product 2-chloroethyl ethyl sulfone (CEESO2). This method to detoxify mustard gas is regarded as more realistic, convenient, and effective than the other available methods.
keywords
CHEMICAL WARFARE AGENTS; SULFUR MUSTARD; SINGLET OXYGEN; HYDROGEN-PEROXIDE; DECONTAMINATION; DESTRUCTION; OXIDATION; SULFIDES; PERSULFOXIDE; CATALYST
subject category
Science & Technology - Other Topics; Materials Science
authors
Pereira, CF; Liu, YY; Howarth, A; Figueira, F; Rocha, J; Hupp, JT; Farha, OK; Tome, JPC; Paz, FAA
our authors
Filipe Alexandre Almeida Paz
Principal Researcher
Flávio Alberto da Silva Figueira
Junior Researcher
João Rocha
Full Professoracknowledgements
Fundacao para a Ciencia e a Tecnologia (FCT, Portugal), the European Union, QREN, FEDER through Programa Operacional Factores de Competitividade (COMPETE), CICECO - Aveiro Institute of Materials (POCI-01-0145-FEDER-007679; FCT ref. UID/CTM/50011/2013), QOPNA (FCT UID/QUI/00062/2013) and CQE (FCT UID/QUI/0100/2013) research units, financed by national funds through the FCT/MEC and when appropriate cofinanced by FEDER under the PT2020 Partnership Agreement. O.K.F. and J.T.H. acknowledge support from the Defense Threat Reduction Agency (HDTRA1-18-1-0003).