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Preparation and Visible Light Photocatalytic Properties of (Er, La, N)-Codoped TiO2 Nanotube Array Films

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Abstract:

TiO2 nanotube array films were prepared by in-situ liquid phase transformation and deposition of anodic aluminum oxidation template films with (NH4)2TiF6 dilute solution; and the (Er, La, N)-codoped films were fabricated by impregnation with rare earth elements of Er and La following by heat treatment in flow ammonia. Obviously enhanced photocatalytic degradation of organic dye was obtained by codoped TiO2 under visible light irradiation compared with undoped TiO2 film, and the increase of photocatalytic performance of as-prepared TiO2 was attributed to the enlargement of light absorbency ranging from upconversed UV to red-shifted visible light up to 600 nm.

Keywords: NANOTUBE; PHOTOCATALYSIS; TITANIUM DIOXIDE; UPCONVERSION

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.C009

Publication date: February 1, 2009

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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