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Journal of Chemistry
Volume 2013, Article ID 614724, 5 pages
http://dx.doi.org/10.1155/2013/614724
Research Article

Photochemical Properties of Precipitated Titania Aerosol Produced by Powdering of Crystal Rutile under Ambient Air

1Laboratory of Solar Energy Transformation, Boreskov Institute of Catalysis, Novosibirsk 630090, Russia
2Departments of Physical and Colloidal Chemistry, Tomsk State University, Tomsk 634050, Russia

Received 21 June 2012; Revised 16 August 2012; Accepted 20 August 2012

Academic Editor: Ewa Schab-Balcerzak

Copyright © 2013 Valery Zakharenko and Alexey Filimonov. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

It is shown that the quantum yields of oxygen photoadsorption and carbon dioxide photodesorption on TiO2 are significantly higher under illumination by quanta with energy from the surface absorption region of TiO2 when it is not produced by the traditional way, but from the rutile crystal. The magnitudes and spectral dependencies of the quantum yield of photoadsorption and photodesorption for TiO2 produced from a monocrystal are determined. A mechanism of a sharp increase of the titania photoadsorption activity in the surface absorption region is proposed.