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Modified titania nanotubes for decontamination of sulphur mustard.

Journal of hazardous materials (2009-03-11)
G K Prasad, Beer Singh, K Ganesan, Anirudh Batra, Tushar Kumeria, P K Gutch, R Vijayaraghavan
ABSTRACT

Modified titania nanotubes have been studied as powder decontaminants against sulphur mustard (HD), a deadliest chemical warfare agent. Decontamination reactions were carried out at room temperature (30+/-2 degrees C) and monitored by gas chromatography and gas chromatography mass spectrometry techniques. Reactions displayed first order kinetics. HD underwent accelerated hydrolysis on Ag(+)-titania nanotubes when compared to Cu(2+), Ni(2+), Co(2+), Mn(2+) and Ru(3+)-titania nanotubes depicting catalysis. Thiodiglycol, 1,4-oxathiane were observed to be major products formed except on Ru(3+)-titania nanotubes. Sulphur mustard sulphoxide formed on Ru(3+)-titania nanotubes indicating oxidative decontamination of HD.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
2,2′-Thiodiethanol, ≥99%
Sigma-Aldrich
2,2′-Thiodiethanol, purum, ≥95.0% (GC)
Supelco
Thiodiglycol solution, 1000 μg/mL in methanol, ampule of 1.2 mL, certified reference material, Cerilliant®