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Niobium(V) Saponite Clay for the Catalytic Oxidative Abatement of Chemical Warfare Agents
Author(s) -
Carniato Fabio,
Bisio Chiara,
Psaro Rinaldo,
Marchese Leonardo,
Guidotti Matteo
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201405134
Subject(s) - saponite , oxidizing agent , chemistry , organosulfur compounds , catalysis , sulfide , hydrogen peroxide , human decontamination , inorganic chemistry , sulfur , organic chemistry , waste management , montmorillonite , engineering
A Nb V ‐containing saponite clay was designed to selectively transform toxic organosulfur chemical warfare agents (CWAs) under extremely mild conditions into nontoxic products with reduced environmental impact. Thanks to the insertion of Nb V sites within the saponite framework, a bifunctional catalyst with strong oxidizing and acid properties was obtained. Remarkable activity and high selectivity were observed for the oxidative abatement of (2‐chloroethyl)ethyl sulfide (CEES), a simulant of sulfur mustard, at room temperature with aqueous hydrogen peroxide. This performance was significantly better compared to a conventional commercial decontamination powder.