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Photocatalytic Hydrogen Generation Over Lanthanum Doped TiO2 Under UV Light Irradiation

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Abstract:

TiO2 nanoparticles doped with different amount of lanthanum were obtained by sol–gel approach and followed annealing at different temperature. The crystal size of TiO2 doped with lanthanum was smaller than that of pure TiO2. Photocatalytic activity of TiO2 doped with lanthanum for water splitting into H2 was investigated. The photocatalytic activity of TiO2 doped with lanthanum for water splitting into H2 is higher than that of pure TiO2. It was found that the optimal photocatalyst was TiO2 doped with 2 wt% lanthanum and calcined at 600 °C for 4 h which had hydrogen generation rate 700.6 μmol h−1.

Keywords: HYDROGEN; LANTHANUM; PHOTOCATALYSIS; TIO2; WATER SPLITTING

Document Type: Research Article

DOI: http://dx.doi.org/10.1166/jnn.2009.C191

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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