title: Mixed CuFe and ZnFe (hydr)oxides as reactive adsorbents of chemical warfare agent surrogates.
abstract: Two sets of zinc-iron and copper-iron mixed (hydr)oxides were prepared by a simple co-precipitation method. Either nitrate or chloride was a source of the metals. The decontamination ability of the materials was tested in closed vials saturated with vapors of 2-chloroethyl ethyl sulfide (CEES) or dimethyl chlorophosphate (DMCP), a blister agent and a nerve agent surrogate, respectively. In both cases, the weight uptakes on the mixed oxides were superior to the ones reported for the pure metal oxides or hydroxides. When exposed to CEES for 5days, zinc-iron (hydr)oxides show much higher activity than the copper-iron ones. The products of reactions in the vessel headspace were investigated by GC/MS and on the surface by FTIR. Ethyl vinylsulfide and chloromethane are the main products of the reactive adsorption of CEES and DMCP, respectively. This indicates that CEES is mainly degraded by dehydrochlorination and DMCP- by hydrolysis.
authors.affiliation: Department of Chemistry, The City College of New York, New York, NY 10031, USA.
authors.forename: Marc
authors.initials: M
authors.lastname: Florent
authors.affiliation: Department of Chemistry, The City College of New York, New York, NY 10031, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA.
authors.forename: Dimitrios A
authors.initials: DA
authors.lastname: Giannakoudakis
authors.affiliation: Department of Chemistry, The City College of New York, New York, NY 10031, USA.
authors.forename: Rajiv
authors.initials: R
authors.lastname: Wallace
authors.affiliation: Department of Chemistry, The City College of New York, New York, NY 10031, USA; Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, New York, NY 10016, USA. Electronic address: tbandosz@ccny.cuny.edu.
authors.forename: Teresa J
authors.initials: TJ
authors.lastname: Bandosz
keywords: CEES; Chemical warfare; DMCP; Mixed (hydr)oxides; Reactive adsorption