Selective Photooxidation of a Mustard‐Gas Simulant Catalyzed by a Porphyrinic Metal–Organic Framework |
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| Authors: | Dr Yangyang Liu Dr Ashlee J Howarth Prof Joseph T Hupp Prof Omar K Farha |
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| Affiliation: | 1. Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208‐3113 (USA);2. Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah (Saudi Arabia) |
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| Abstract: | The photooxidation of a mustard‐gas simulant, 2‐chloroethyl ethyl sulfide (CEES), is studied using a porphyrin‐based metal–organic framework (MOF) catalyst. At room temperature and neutral pH value, singlet oxygen is generated by PCN‐222/MOF‐545 using an inexpensive and commercially available light‐emitting diode. The singlet oxygen produced by PCN‐222/MOF‐545 selectively oxidizes CEES to the comparatively nontoxic product 2‐chloroethyl ethyl sulfoxide (CEESO) without formation of the highly toxic sulfone product. In comparison to current methods, which utilize hydrogen peroxide as an oxidizing agent, this is a more realistic, convenient, and effective method for mustard‐gas detoxification. |
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| Keywords: | chemical warfare agents heterogeneous catalysis metal– organic frameworks photooxidation singlet oxygen |
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