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Fabrication and Photoelectrochemical Properties of CuO/TiO2 Heterojunction Nanotubes Array Film

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Abstract:

In order to improve the visible light response in titania photocatalysts, CuO/TiO2 heterojunction nanostructures (CuO-TNT) were proposed and fabricated via the electrochemical process. TiO2 nanotubes array (TNT) was first fabricated by secondary anodization, after that the CuO was doped by the electrodeposition. The thin film was characterized by X-ray diffraction (XRD), diffuse reflection spectra (DRS) and field emission scanning electron microscopy (FESEM). Besides, its photoelectrochemical properties were measured in 0.1 M Na2SO3 solution. By comparing the results under different conditions of deposition, it was found that the deposition current density was a crucial parameter for controlling the morphology and the photoelectrochemical properties of the samples.

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Periodical:

Key Engineering Materials (Volume 492)

Pages:

316-319

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.492.316

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Online since:

September 2011

Authors:

Shi Lei Chen, Yun Han Ling, Hua Jing Fang

Keywords:

CuO, Heterojunction, Photoelectrochemistry, Titania Nanotube

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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