Ge4+ doped TiO2 for stoichiometric degradation of warfare agents.
Germanium doped TiO(2) was prepared by homogeneous hydrolysis of aqueous solutions of GeCl(4) and TiOSO(4) with urea. The synthesized samples were characterized by X-ray diffraction, scanning electron microscopy, EDS analysis, specific surface area (BET) and porosity determination (BJH). Ge(4+) doping increases surface area and content of amorphous phase in prepared samples. These oxides were used in an experimental evaluation of their reactivity with chemical warfare agent, sulphur mustard, soman and agent VX. Ge(4+) doping worsens sulphur mustard degradation and improves soman and agent VX degradation. The best degree of removal (degradation), 100% of soman, 99% of agent VX and 95% of sulphur mustard, is achieved with sample with 2 wt.% of germanium.
Department of Solid State Chemistry, Institute of Inorganic Chemistry AS CR vvi, Řež, Czech Republic. stengl@iic.cas.cz
Václav
V
Stengl
Tomáš Matys
TM
Grygar
František
F
Opluštil
Tomáš
T
Němec
D002619:Chemical Warfare Agents / Q000737:chemistry*; D003666:Decontamination / Q000379:methods; D005857:Germanium / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry; D009151:Mustard Gas / Q000737:chemistry; D009946:Organothiophosphorus Compounds / Q000737:chemistry; D012999:Soman / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*
D002619:Chemical Warfare Agents; D005857:Germanium; D009151:Mustard Gas; D009946:Organothiophosphorus Compounds; D012999:Soman; D014025:Titanium; C009495:titanium dioxide; C009680:VX-agent