Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 27, Issue 14, Pages 4723-4730Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202005454
Keywords
abatement; chemical warfare agents; clays; lanthanide; saponite
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Funding
- Universita del Piemonte Orientale (Ricerca locale FAR2019)
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This study utilizes the co-presence of luminescent Eu-III and catalytic Nb-V metal sites in the saponite structure for simultaneous detection and catalytic abatement of sulfur-containing blister chemical warfare agents. Functionalized saponites can quickly detect sulfur mustard simulants and effectively catalyze the decomposition of substrates in the presence of aqueous hydrogen peroxide.
For the first time, the co-presence in the saponite structure of luminescent Eu-III and catalytic Nb-V metal sites was exploited for the simultaneous detection and catalytic abatement of sulfur-containing blister chemical warfare agents. Metal centers were introduced in structural positions of the saponite (in the interlayer space or inside the inorganic framework) following two different synthetic methodologies. The functionalized saponites were able to reveal the presence of a sulfur mustard simulant (2-chloroethyl)ethyl sulfide (CEES) after few seconds of contact time and more than 80 % of the substrate was catalytically decomposed after 24 h in the presence of aqueous hydrogen peroxide.
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