Vol. 22, issue 06, article # 16

Zakharenko V. S., Filimonov A. P. Photochemical properties of powder-like titanium dioxide, obtained from rutile monocrystal under ambient air. // Optika Atmosfery i Okeana. 2009. V. 22. No. 06. P. 611-614 [in Russian].
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It was shown that the photochemical activity under tropospheric solar irradiation ( > 300 nm) of titanium dioxide, produced by fine grinding of rutile crystal under ambient air, is essentially higher than the photochemical activity of titanium dioxide prepared by traditional ways. The quantum yield and spectral dependencies of oxygen photoadsorption and carbon dioxide photodesorption of titanium dioxide were determined. The mechanism of photoprocess activity increasing under illumination in the surface absorption region was suggested.


troposphere photochemistry; aerosol of TiO2 microcrystals; photoadsorption