TY - JOUR
T1 - UV laser decontamination of chemical warfare agent simulants CEPS and malathion
AU - Lee, Seong Yeon
AU - Jang, Dong Il
AU - Kim, Doh Yoon
AU - Yee, Ki Ju
AU - Nguyen, Huu Quang
AU - Kim, Jeongkwon
AU - Sohn, Youngku
AU - Jung, Heesoo
N1 - Funding Information:
This work was supported by the Defense Acquisition Program Administration and Agency for Defense Development ( UD180050GD ) and the National Research Foundation of Korea ( NRF-2020R1A2C1008368 , NRF-2020R1A6A1A03047771 ).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/2/1
Y1 - 2021/2/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jphotochem.2020.112989
DO - 10.1016/j.jphotochem.2020.112989
M3 - Article
AN - SCOPUS:85095773014
VL - 406
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
SN - 1010-6030
M1 - 112989
ER -