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Selective Photodetoxification of a Sulfur Mustard Simulant Using Plasmonic Aluminum Nanoparticles.
Lou, Minghe; Bayles, Aaron; Everitt, Henry O; Halas, Naomi J.
Afiliação
  • Lou M; Department of Chemistry, Rice University, Houston, Texas 77005, United States.
  • Bayles A; Laboratory of Nanophotonics, Rice University, Houston, Texas 77005, United States.
  • Everitt HO; Department of Chemistry, Rice University, Houston, Texas 77005, United States.
  • Halas NJ; Laboratory of Nanophotonics, Rice University, Houston, Texas 77005, United States.
Nano Lett ; 22(18): 7699-7705, 2022 09 28.
Article em En | MEDLINE | ID: mdl-36073653
ABSTRACT
Plasmonic nanostructures have attracted increasing interest in the fields of photochemistry and photocatalysis for their ability to enhance reactivity and tune reaction selectivity, a benefit of their strong interactions with light and their multiple energy decay mechanisms. Here we introduce the use of earth-abundant plasmonic aluminum nanoparticles as a promising renewable detoxifier of the sulfur mustard simulant 2-chloroethylethylsulfide through gas phase photodecomposition. Analysis of the decomposition products indicates that C-S bond breaking is facilitated under illumination, while C-Cl breaking and HCl elimination are favored under thermocatalytic (dark) conditions. This difference in reaction pathways illuminates the potential of plasmonic nanoparticles to tailor reaction selectivity toward less hazardous products in the detoxification of chemical warfare agents. Moreover, the photocatalytic activity of the Al nanoparticles can be regenerated almost completely after the reaction concludes through a simple surface treatment.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Substâncias para a Guerra Química / Nanopartículas / Gás de Mostarda Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Substâncias para a Guerra Química / Nanopartículas / Gás de Mostarda Idioma: En Ano de publicação: 2022 Tipo de documento: Article