title: Decontamination of Yperite using mesoporous mixed metal oxide nanocrystals.
abstract: Mixed metal oxide nanocrystals of AP-Al(2)O(3), AP-Al(2)O(3)-Fe(2)O(3), AP-Al(2)O(3)-V(2)O(5) and AP-Al(2)O(3)-CuO have been prepared by aerogel process. XRD data of prepared materials revealed the formation of nanocrystals with a size range of 3-15 nm diameters. N(2) BET investigations on these materials revealed larger values of surface area ranging from 350 to 540 m(2)/g. Reactivity of these nanocrystalline materials against Yperite was examined by gas chromatography, gas chromatography-mass spectrometry and infrared spectroscopy techniques. AP-Al(2)O(3)-Fe(2)O(3), AP-Al(2)O(3)-V(2)O(5) and AP-Al(2)O(3)-CuO nanocrystals exhibited superior decontamination properties against Yperite than AP-Al(2)O(3). The reactions exhibited pseudo first order behaviour. 100% of Yperite was found to be decontaminated on Al(2)O(3)-Fe(2)O(3), Al(2)O(3)-V(2)O(5) and Al(2)O(3)-CuO where only 75% of the same was found to be decontaminated on AP-Al(2)O(3) within 40 h.
authors.affiliation: Defence Research and Development Establishment, Jhansi Road, Gwalior 474002, Andhra Pradesh, India. gkprasad@lycos.com
authors.forename: G K
authors.initials: GK
authors.lastname: Prasad
authors.forename: P V R K
authors.initials: PV
authors.lastname: Ramacharyulu
authors.forename: K
authors.initials: K
authors.lastname: Batra
authors.forename: Beer
authors.initials: B
authors.lastname: Singh
authors.forename: A R
authors.initials: AR
authors.lastname: Srivastava
authors.forename: K
authors.initials: K
authors.lastname: Ganesan
authors.forename: R
authors.initials: R
authors.lastname: Vijayaraghavan
mesh_terms: D002619:Chemical Warfare Agents; D003666:Decontamination / Q000379:methods*; D003879:Dermatologic Agents; D053768:Metal Nanoparticles / Q000737:chemistry; D009151:Mustard Gas; D010087:Oxides; D016062:Porosity
chemical_list: D002619:Chemical Warfare Agents; D003879:Dermatologic Agents; D010087:Oxides; D009151:Mustard Gas