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Photoelectrochemical Studies of Dye-Sensitized TiO2 Nanoporous Electrodes

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Abstract:

The nanoporous titania dispersion system are prepared under hydrothermal conditions by employing various amount β-cyclodextrin(CD) as the porogent.Then, different microsructure nanoporous TiO2 electrodes are fabricated by Doctor-blade mehod, using the above synthesis of titanium dioxide materials.The photoelectrochemical properties of dye-sensitized nanoporous TiO2 electrodes are studied with transient photocurrent spectrum ,electrochemical impedence spectra (EIS) and photocurrent action spectra. The results indicate that the current response signals of dye-sensitized porous TiO2 electrodes are stable. In addition,the impedence arc radius decreases gradually and light current increases gradually with the addition of β–CD. Meanwhile, the dye-sensitized porous electrodes with β-CD/TiO2 ＝40 wt% showes the best photoelectrochemical properties.

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Periodical:

Applied Mechanics and Materials (Volume 252)

Pages:

216-219

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.252.216

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Online since:

December 2012

Authors:

Li Ming Jiang

Keywords:

Dye-Sensitization, Photocurrent, Photoelectrochemistry, TiO2 Nanoporous Electrodes

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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