Title of article
Beneficial effect of Nb doping on the photoelectrochemical properties of TiO2 and TiO2-polyheptazine hybrids
Author/Authors
Mei، نويسنده , , Bastian and Byford، نويسنده , , Harriet and Bledowski، نويسنده , , Michal and Wang، نويسنده , , Lidong and Strunk، نويسنده , , Jennifer and Muhler، نويسنده , , Martin and Beranek، نويسنده , , Radim، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
6
From page
48
To page
53
Abstract
Nb-doped TiO2 in pure anatase form prepared by spray drying exhibits enhanced photoelectrochemical performance both in its bare form (under UV irradiation) and when used as an electron collector in TiO2-polyheptazine hybrid photoanodes for water photooxidation under visible (λ>420 nm) light. The optimum Nb-doping concentration was 0.1 at%, and the enhancement of photocurrents was found to be chiefly due to enhanced mobility of electrons in Nb-doped TiO2. Accordingly, the beneficial effect of Nb doping on photocurrent generation in hybrid photoanodes was pronounced particularly at longer irradiation wavelengths and lower bias potentials.
Keywords
Water photooxidation , Hybrid materials , Visible light , Titanium dioxide , Doping , Water splitting
Journal title
Solar Energy Materials and Solar Cells
Serial Year
2013
Journal title
Solar Energy Materials and Solar Cells
Record number
1488271
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