Physical and Chemical Properties and Photocatalytic Activity of Nanostructured TiO2/CdS Films

Physical and Chemical Properties and Photocatalytic Activity of Nanostructured TiO2/CdS Films

Mesoporous titanium dioxide films obtained by the sol/gel template method are used as supports for making TiO 2 /CdS nanoheterostructures. We show that the photocatalytic method results in formation of smaller CdS nanoparticles than chemical deposition. Photoelectrochemical measurements show more ef...

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Veröffentlicht in:Journal of applied spectroscopy 2014-05, Vol.81 (2), p.238-243
Hauptverfasser: Zhukovskiy, M. A., Smirnova, N. P., Rusetsky, I. A., Kolbasov, G. Ya, Eremenko, A. M.
Format: Artikel
Sprache:eng
Schlagworte:
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Physics
Physics and Astronomy
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Zusammenfassung:Mesoporous titanium dioxide films obtained by the sol/gel template method are used as supports for making TiO 2 /CdS nanoheterostructures. We show that the photocatalytic method results in formation of smaller CdS nanoparticles than chemical deposition. Photoelectrochemical measurements show more efficient spatial separation of photogenerated charges between components of the photocatalytically produced TiO 2 /CdS films, and consequently their participation in redox transformation of the xanthene dye Rose Bengal when exposed to UV light leads to higher quantum yields.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-014-9916-7