| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10624610 | Ceramics International | 2015 | 7 Pages |
Abstract
Highly ordered copper doped TiO2 nanotube arrays (CuTiO2NTs) thin-film were prepared in an aqueous solution containing NH4F and different concentrations of copper nitrate via the electrochemical oxidation of titanium substrates. The resulting nanotubes were characterized by FE-SEM, XRD, XPS and EDX. The CuTiO2NTs showed a tube diameter of 40-90Â nm and wall thickness of 20-30Â nm. Diffuse reflectance spectra showed a shift toward longer wavelengths relative to pure TiO2 nanotubes (TiO2NTs). The visible light photo-catalytic activity of the CuTiO2NTs electrodes was evaluated by the removal of methylene blue (MB) dye and the production of hydrogen. The results showed that CuTiO2NTs samples exhibited better photo-catalytic activity than the TiO2NTs. This work demonstrated a feasible and simple anodization method to fabricate an effective, reproducible, and inexpensive visible-light-driven photo-catalyst for hydrogen evolution and environmental applications.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Mohamad Mohsen Momeni, Yousef Ghayeb, Zohre Ghonchegi,