On the mechanism of enhanced photocatalytic activity of composite TiO(2)/carbon nanofilms

Sellappan, Raja, 1981 (author): Chalmers tekniska högskola,Chalmers University of Technology

Chakarov, Dinko, 1955 (author): Chalmers tekniska högskola,Chalmers University of Technology

(creator_code:org_t)

Elsevier BV, 2011
2011
English.
In: Applied Catalysis B: Environmental. - : Elsevier BV. - 0926-3373 .- 1873-3883. ; 106:3-4, s. 337-342

Related links:: http://dx.doi.org/10...; show more...; https://research.cha...; https://doi.org/10.1...; show less...

Abstract Subject headings

In the search for the origin of the enhanced photocatalytic activity of composite TiO(2)-carbon systems, we have fabricated and analyzed well-defined model samples consisting of anatase and graphitic carbon with and without modifying the interface between them by a thin SiO(2) space layer. The films with a TiO(2)/C interface show noticeably lower photoluminescence intensity and shorter carrier life times compared to single TiO(2) films with the same thickness and composition. The stronger non-radiative recombination is mainly assigned to charge carrier leakage (transfer) at the interface between TiO(2) nanocrystallites and the carbon film. (C) 2011 Elsevier B.V. All rights reserved.

By the author/editor: Sellappan, Raja, ...; Galeckas, A.; Venkatachalapath ...; Kuznetsov, A. Y.; Chakarov, Dinko, ...

About the subject

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