Reactive sorbent based on manganese oxide nanotubes and nanosheets for the decontamination of 2-chloro-ethyl ethyl sulphide

Nanostructured Metal Oxides for Stoichiometric Degradation of Chemical Warfare Agents

“…Manganese(IV) oxide is polymorphic, with several different crystal structures such as α-MnO 2 (hollandite), β-MnO 2 (pyrolusite), δ-MnO 2 (birnessite), ε-MnO 2 (akhtenskite), γ-MnO 2 (nsutite) and amorphous MnO 2 . Prasad et al ( 2007b ) used reactive sorbent based on nanosheets and nanotubes of manganese oxide for degradation of CEES with a rate constant of 0.148 h −1 and a half-life of 4.66 h, and for the detoxifi cation of HD (Prasad et al 2007c ). Mesoporous manganese oxide MnO 2 nanobelts were prepared from Mn 2 O 3 and NaOH by hydrothermal synthesis at 170 °C for 5 days.…”

Decontamination of Chemical Warfare Agents

“…The reaction mechanism is similar to as given in Figs 8 to 11. 7.27 Nanosized Metal Oxides as CWA Decontaminants Recently, nanosized particles of MgO, Al 2 O 3 and CaO have been found to be the potential reactive sorbent materials owing to their high surface area, strong adsorbability, potential reactivity towards chemical warfare agents, and these remove the agent rapidly from the contaminated surfaces and degrade them in situ and render the hazardous agents non-toxic [32][33][34][35][36][37][38] . In addition, titania nanotubes, manganese oxide nanotubes were also found to be having promising CWA decontamination properties [76][77][78][79][80] .…”

Kinetics of adsorption of sulfur mustard on Al2O3 nanoparticles with and without impregnants

“…To study such reaction products these either have to be investigated directly using the MAS-NMR technique 1,2 or by extracting them into an organic solvent and analyzing by GC-MS. 25 Literature reports 1,2 indicate that it is difficult to extract reaction products from metal oxide nanoparticles because as the products are generated they bind to the active sites of the nanoparticles resulting in surface bound reaction products. In the present study reaction products have been identified using GC/MS analysis of extracts.…”