Combustion Synthesized Vanadia Rods for Environmental Applications

Deshpande, Parag A and Madras, Giridhar (2011) Combustion Synthesized Vanadia Rods for Environmental Applications. In: AIChE Journal, 57 (8). pp. 2215-2228.

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Abstract

Rod-shaped V(2)O(5) was synthesized using the solution combustion technique, and the morphology of the compound was confirmed by TEM. Rods of an average diameter of 500 nm and length 3-6 times the diameter were obtained after the calcination of freshly prepared V(2)O(5) at 550 degrees C for 24 h. Pd metal nanoparticles of 20 nm size were deposited onto the rods using the wet impregnation technique. The as-synthesized, calcined and Pd impregnated V(2)O(5) were characterized by a wide variety of techniques including energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. These compounds were tested for CO oxidation, adsorption, and photocatalytic degradation of dyes. The 1% Pd/V(2)O(5) showed a high activity for CO oxidation, the as-synthesized compound showed activity for the adsorption of cationic dyes, whereas the calcined V(2)O(5) sample showed high rates of photocatalytic degradation of dyes. (C) 2010 American Institute of Chemical Engineers AIChE J, 57: 2215-2228, 2011

Item Type:	Journal Article
Publication:	AIChE Journal
Publisher:	John Wiley and Sons
Additional Information:	Copyright of this article belongs to John Wiley and Sons.
Keywords:	morphology;calcination;spectroscopy;CO oxidation;adsorption; degradation;mechanism
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	30 Aug 2011 05:55
Last Modified:	30 Aug 2011 05:55
URI:	http://eprints.iisc.ac.in/id/eprint/40039

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