Premium
Physico–chemical Properties, Biological and Environmental Impact of Nb–saponites Catalysts for the Oxidative Degradation of Chemical Warfare Agents
Author(s) -
Costenaro Daniele,
Bisio Chiara,
Carniato Fabio,
Safronyuk Sergey L.,
Kramar Tatyana V.,
Taran Marina V.,
Starodub Mykola F.,
Katsev Andrey M.,
Guidotti Matteo
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201700042
Subject(s) - saponite , chemistry , luminescent bacteria , sulfur , human decontamination , hydrogen peroxide , catalysis , sulfide , oxidizing agent , hydrogen sulfide , environmental chemistry , nuclear chemistry , organic chemistry , toxicity , waste management , montmorillonite , engineering
Niobium‐containing saponite clays are active catalysts, under mild ambient conditions and in the presence of aqueous hydrogen peroxide, in the oxidative abatement of sulfur‐containing blister chemical warfare agent simulants, such as (2‐chloroethyl)ethyl sulfide. Over a Nb‐saponite solid, a complete, selective and safe abatement of the chemical agent was attained within 8 h. The biological and environmental impact of the Nb‐containing nanostructured clays used as decontamination solids was assessed by specific rapid biotoxicity tests on bioluminescent bacteria and vegetable plants. No negative impact on the strain of luminescent bacteria was evidenced in terms of acute and chronic toxicity. No adverse effects have been observed on vegetable plants in terms of germination, vigour and induction of chlorophyll fluorescence either.