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Issue 17, 2013
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Analysis of visible-light-active Sn(ii)–TiO2 photocatalysts

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Abstract

The influence of Sn(II) species on TiO2 is investigated. The absorption spectra of these materials are red-shifted by 115 nm to the visible region of the solar spectrum compared with P25 TiO2. This prominent red-shift is attributed to the interaction of Sn(II) 5s orbitals with the TiO2 decreasing the band gap of TiO2 by raising its valence band. The tin oxidation state and the materials electronic structure are evaluated using Mössbauer spectroscopy and valence band X-ray photoelectron spectroscopy respectively. These materials are active for sacrificial photo-generation of hydrogen in visible light.

Graphical abstract: Analysis of visible-light-active Sn(ii)–TiO2 photocatalysts

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Publication details

The article was received on 21 Dec 2012, accepted on 12 Mar 2013 and first published on 13 Mar 2013


Article type: Communication
DOI: 10.1039/C3CP44635B
Phys. Chem. Chem. Phys., 2013,15, 6185-6189

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    Analysis of visible-light-active Sn(II)–TiO2 photocatalysts

    V. B. R. Boppana, F. Jiao, D. Newby, J. Laverock, K. E. Smith, J. C. Jumas, G. Hutchings and R. F. Lobo, Phys. Chem. Chem. Phys., 2013, 15, 6185
    DOI: 10.1039/C3CP44635B

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