Nano Archive

Facile fabrication, characterization, and enhanced photoelectrocatalytic degradation performance of highly oriented TiO2 nanotube arrays

Zhao, Qidong and Li, Xinyong and Wang, Ning and Hou, Yang and Quan, Xie and Chen, Guohua (2009) Facile fabrication, characterization, and enhanced photoelectrocatalytic degradation performance of highly oriented TiO2 nanotube arrays. Journal of Nanoparticle Research, 11 (8). pp. 2153-2162.

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Official URL: http://www.springerlink.com/content/q3773wh1847130...

Abstract

Highly ordered TiO2 nanotube arrays were successfully fabricated using ethanol and water mixture electrolytes (40 vol% ethanol and 0.2 wt% hydrofluoric acid) by a facile electrochemical anodization method. The as-prepared nanotube arrays were grown perpendicular to the titanium substrate with about 90 nm in diameter, 20 nm in wall thickness, and around 500 nm in length. The formation mechanism of the samples is briefly discussed. A blue shift in the spectrum of UV–Vis absorption was observed with respect to a piece of the sol–gel derived TiO2 film. Moreover, photocurrent response and photoelectrocatalytic degradation of methyl orange under ultraviolet light irradiation were adopted to evaluate the photoelectrocatalytic properties of the TiO2 nanotube arrays. We demonstrate that the highly ordered TiO2 nanotube arrays possess much better photoelectrocatalytic activity than the sol–gel derived TiO2 film and good stability.

Item Type:Article
Uncontrolled Keywords:Titania - Nanotube - Photocurrent - Photoelectrocatalytic degradation - Nanomanufacturing
Subjects:Technology > Manufacturing processes for nanotechnology
Material Science > Nanostructured materials
Physical Science > Photonics
ID Code:7953
Deposited By:IoN
Deposited On:08 Jan 2010 11:39
Last Modified:08 Jan 2010 11:39

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