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Title: Zirconium doped nano-dispersed oxides of Fe, Al and Zn for destruction of warfare agents

Abstract

Zirconium doped nano dispersive oxides of Fe, Al and Zn were prepared by a homogeneous hydrolysis of the respective sulfate salts with urea in aqueous solutions. Synthesized metal oxide hydroxides were characterized using Brunauer-Emmett-Teller (BET) surface area and Barrett-Joiner-Halenda porosity (BJH), X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM) and energy-dispersive X-ray microanalysis (EDX). These oxides were taken for an experimental evaluation of their reactivity with sulfur mustard (HD or bis(2-chloroethyl)sulfide), soman (GD or (3,3'-Dimethylbutan-2-yl)-methylphosphonofluoridate) and VX agent (S-[2-(diisopropylamino)ethyl]-O-ethyl-methylphosphonothionate). The presence of Zr{sup 4+} dopant can increase both the surface area and the surface hydroxylation of the resulting doped oxides, decreases their crystallites' sizes thereby it may contribute in enabling the substrate adsorption at the oxide surface thus it can accelerate the rate of degradation of warfare agents. Addition of Zr{sup 4+} converts the product of the reaction of ferric sulphate with urea from ferrihydrite to goethite. We found out that doped oxo-hydroxides Zr-FeO(OH) - being prepared by a homogeneous hydrolysis of ferric and zirconium oxo-sulfates mixture in aqueous solutions - exhibit a comparatively higher degradation activity towards chemical warfare agents (CWAs). Degradation of soman or VX agent on Zr-doped FeO(OH) containing ca. 8.3 wt.% of zirconium proceededmore » to completion within 30 min.« less

Authors:
 [1]; ; ; ;  [1]; ;  [2]
  1. Institute of Inorganic Chemistry AS CR v.v.i., 250 68 Rez (Czech Republic)
  2. Military Technical Institute of Protection Brno, Veslarska 230, 628 00 Brno (Czech Republic)
Publication Date:
OSTI Identifier:
22066233
Resource Type:
Journal Article
Journal Name:
Materials Characterization
Additional Journal Information:
Journal Volume: 61; Journal Issue: 11; Other Information: Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1044-5803
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; ADSORPTION; ALUMINIUM OXIDES; AQUEOUS SOLUTIONS; CHEMICAL WARFARE AGENTS; DOPED MATERIALS; HYDROLYSIS; HYDROXYLATION; INFRARED SPECTRA; IRON HYDROXIDES; IRON OXIDES; SCANNING ELECTRON MICROSCOPY; SULFATES; SURFACE AREA; UREA; WARFARE; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; ZINC OXIDES; ZIRCONIUM

Citation Formats

Stengl, Vaclav, E-mail: stengl@uach.cz, Houskova, Vendula, Bakardjieva, Snejana, Murafa, Nataliya, Marikova, Monika, Oplustil, Frantisek, and Nemec, Tomas. Zirconium doped nano-dispersed oxides of Fe, Al and Zn for destruction of warfare agents. United States: N. p., 2010. Web. doi:10.1016/J.MATCHAR.2010.06.021.
Stengl, Vaclav, E-mail: stengl@uach.cz, Houskova, Vendula, Bakardjieva, Snejana, Murafa, Nataliya, Marikova, Monika, Oplustil, Frantisek, & Nemec, Tomas. Zirconium doped nano-dispersed oxides of Fe, Al and Zn for destruction of warfare agents. United States. doi:10.1016/J.MATCHAR.2010.06.021.
Stengl, Vaclav, E-mail: stengl@uach.cz, Houskova, Vendula, Bakardjieva, Snejana, Murafa, Nataliya, Marikova, Monika, Oplustil, Frantisek, and Nemec, Tomas. Mon . "Zirconium doped nano-dispersed oxides of Fe, Al and Zn for destruction of warfare agents". United States. doi:10.1016/J.MATCHAR.2010.06.021.
@article{osti_22066233,
title = {Zirconium doped nano-dispersed oxides of Fe, Al and Zn for destruction of warfare agents},
author = {Stengl, Vaclav, E-mail: stengl@uach.cz and Houskova, Vendula and Bakardjieva, Snejana and Murafa, Nataliya and Marikova, Monika and Oplustil, Frantisek and Nemec, Tomas},
abstractNote = {Zirconium doped nano dispersive oxides of Fe, Al and Zn were prepared by a homogeneous hydrolysis of the respective sulfate salts with urea in aqueous solutions. Synthesized metal oxide hydroxides were characterized using Brunauer-Emmett-Teller (BET) surface area and Barrett-Joiner-Halenda porosity (BJH), X-ray diffraction (XRD), infrared spectroscopy (IR), scanning electron microscopy (SEM) and energy-dispersive X-ray microanalysis (EDX). These oxides were taken for an experimental evaluation of their reactivity with sulfur mustard (HD or bis(2-chloroethyl)sulfide), soman (GD or (3,3'-Dimethylbutan-2-yl)-methylphosphonofluoridate) and VX agent (S-[2-(diisopropylamino)ethyl]-O-ethyl-methylphosphonothionate). The presence of Zr{sup 4+} dopant can increase both the surface area and the surface hydroxylation of the resulting doped oxides, decreases their crystallites' sizes thereby it may contribute in enabling the substrate adsorption at the oxide surface thus it can accelerate the rate of degradation of warfare agents. Addition of Zr{sup 4+} converts the product of the reaction of ferric sulphate with urea from ferrihydrite to goethite. We found out that doped oxo-hydroxides Zr-FeO(OH) - being prepared by a homogeneous hydrolysis of ferric and zirconium oxo-sulfates mixture in aqueous solutions - exhibit a comparatively higher degradation activity towards chemical warfare agents (CWAs). Degradation of soman or VX agent on Zr-doped FeO(OH) containing ca. 8.3 wt.% of zirconium proceeded to completion within 30 min.},
doi = {10.1016/J.MATCHAR.2010.06.021},
journal = {Materials Characterization},
issn = {1044-5803},
number = 11,
volume = 61,
place = {United States},
year = {2010},
month = {11}
}