[논문]UV laser decontamination of chemical warfare agent simulants CEPS and malathion

Lee, Seong-Yeon; Jang, Dong-Il; Kim, Doh-Yoon; Yee, Ki-Ju; Nguyen, Huu-Quang; Kim, Jeongkwon; Sohn, Youngku; Jung, Heesoo

doi:10.1016/j.jphotochem.2020.112989

[해외논문] UV laser decontamination of chemical warfare agent simulants CEPS and malathion

Journal of photochemistry and photobiology. A, Chemistry, v.406, 2021년, pp.112989 -

Lee, Seong-Yeon (Department of Physics and Institute of Quantum Systems, Chungnam National University) , Jang, Dong-Il (Department of Physics and Institute of Quantum Systems, Chungnam National University) , Kim, Doh-Yoon (Department of Physics and Institute of Quantum Systems, Chungnam National University) , Yee, Ki-Ju (Department of Physics and Institute of Quantum Systems, Chungnam National University) , Nguyen, Huu-Quang (Department of Chemistry, Chungnam National University) , Kim, Jeongkwon (Department of Chemistry, Chungnam National University) , Sohn, Youngku (Department of Chemistry, Chungnam National University) , Jung, Heesoo (Agency for Defense Development)

Abstract ▼ AI-Helper

Abstract Ultraviolet (UV) laser irradiation was applied to decontaminate chemical warfare agent simulants chloroethyl phenyl sulfide (CEPS) and malathion, with results obtained from gas chromatography–mass spectrometry analysis. Exposure of CEPS to a 266 nm laser exhibited feasible decontamination by dominantly producing the byproduct diphenyl disulfide. However, decontamination in the cases with 355 and 532 nm exposure on CEPS as well as 266 nm exposure on malathion were relatively inefficient. Results also show a strong correlation between decontamination efficiency and absorption probability, which indicates the importance of selecting proper laser wavelengths and supports the photochemical mechanism of UV laser decontamination. Highlights UV lasers are used to decontaminate chemical warfare agent simulants. Decontamination efficiency is strongly correlated with absorption probability. Decontamination efficiency and byproducts are analyzed by GC–MS. The photochemical rather than thermal process drives the UV-induced decontamination. Graphical abstract [DISPLAY OMISSION]

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DOI : 10.1016/j.jphotochem.2020.112989
Elsevier : 저널 > 논문

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