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Synthesis, structure and photocatalytic activity of nano TiO2 and nano Ti1-xMxO2-delta (M = Cu, Fe, Pt, Pd, V, W, Ce, Zr)

Roy, S and Nagaveni, K and Hegde, MS (2005) Synthesis, structure and photocatalytic activity of nano TiO2 and nano Ti1-xMxO2-delta (M = Cu, Fe, Pt, Pd, V, W, Ce, Zr). In: 1st National Conference on Nanoscience and Technology, MAR 07-08, 2005, Pune, India.

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Official URL: http://www.ias.ac.in/pramana/

Abstract

We have synthesized 5-7 nm size, highly crystalline TiO2 which absorbs radiation in the visible region of solar spectrum. The material shows higher photocatalytic activity both in UV and visible region of the solar radiation compared to commercial Degussa P25 TiO2. Transition metal ion substitution for Ti4+ creates mid-gap, states which act as recombination centers for electron-hole induced by photons thus reducing photocatalytic activity. However, Pt, Pd and Cu ion substituted TiO2 are excellent CO oxidation and NO reduction catalysts at temperatures less than 100 degrees C.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to Indian Academy of Sciences.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 08 Mar 2012 09:59
Last Modified: 08 Mar 2012 09:59
URI: http://eprints.iisc.ernet.in/id/eprint/43733

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