Das C, Paramasivam I, Liu N, Schmuki P (2011)
Publication Type: Journal article
Publication year: 2011
Book Volume: 56
Pages Range: 10557-10561
Journal Issue: 28
DOI: 10.1016/j.electacta.2011.05.061
In the present work we study the effect of WO3 doping on the photo-electrochemical behavior of self-organized TiO2 nanotube layers. Mixed oxide nanotubes were grown by anodization of Ti--W alloys containing 0.2 and 9% W, with a thicknesses of the oxide nanotube layers adjusted to about 1.1--1.2~\textgreekmm. We show that by WO3 doping, the near visible photoresponse and photocatalytic performance can drastically be enhanced. While a content of 9~at% WO3 in photoresponse experiments is most beneficial, in long term experiments a higher efficiency is observed for the 0.2~at% W content. This is due to a gradual leaching of WO3 (dissolution into the electrolyte) for the higher WO3 content. This demonstrates that under optimized WO3 doping conditions a lasting visible light activation of TiO2 nanotubes can be achieved.
APA:
Das, C., Paramasivam, I., Liu, N., & Schmuki, P. (2011). Photoelectrochemical and photocatalytic activity of tungsten doped TiO2 nanotube layers in the near visible region. Electrochimica Acta, 56(28), 10557-10561. https://dx.doi.org/10.1016/j.electacta.2011.05.061
MLA:
Das, Chittaranjan, et al. "Photoelectrochemical and photocatalytic activity of tungsten doped TiO2 nanotube layers in the near visible region." Electrochimica Acta 56.28 (2011): 10557-10561.
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