Facile Fabrication of Open-Ended High Aspect-Ratio Anodic TiO2 Nanotube Films and their Applications

Jian Jun Liao; Shi Wei Lin; Neng Qian Pan; Xian Kun Cao; Jian Bao Li

doi:10.4028/www.scientific.net/KEM.512-515.1659

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Facile Fabrication of Open-Ended High Aspect-Ratio...

Facile Fabrication of Open-Ended High Aspect-Ratio Anodic TiO₂ Nanotube Films and their Applications

Abstract:

In the present work, we demonstrated a facile process to prepare an open-ended high aspect-ratio TiO2 nanotube films through separating the anodic TNT array from the Ti substrate by a small reverse bias and opening the tube bottom by a chemical etching. The possible mechanisms of film detachment and pore opening processes have been briefly discussed. Such a process allows controlling the open-ended morphology by the straightforward chemical etching, which shows great potential in many applications, such as flow-through photocatalytic reactions, biofiltration, and diffusion controlling, and so on. An example using the open-ended TNT films is finally given as a flow-through photocatalytic reactor. The photocatalytic film has been shown to have multiple functions such as physical separation of contaminants, filtration, and decomposition of organic pollutants during diffusion.

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Key Engineering Materials (Volumes 512-515)

Pages:

1659-1662

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.512-515.1659

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Online since:

June 2012

Authors:

Jian Jun Liao, Shi Wei Lin, Neng Qian Pan, Xian Kun Cao, Jian Bao Li

Keywords:

Nanotube, Open-Ended, Photocatalytic, Titanium Oxide

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