Journal
MATERIALS LETTERS
Volume 79, Issue -, Pages 252-255Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2012.04.017
Keywords
TiO2 nanotube; Neodymium oxide; Hydrothermal method; Photoelectrocatalysis; Electron microscopy; XPS
Funding
- National Natural Science Foundation of China [20803097, 20603049]
- Natural Science Foundation of CQ CSTC [2009BA4023]
- Fundamental Research Funds for the Central Universities [CDJZR10220005]
- Chongqing University
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Nd2O3-decorated TiO2 nanotube arrays (Nd-TNTAs) were successfully prepared by hydrothermal treatment of anodic TiO2 nanotube arrays (TNTAs) in 0.01 M Nd(NO3)(3) solution at 180 degrees C for 2 h. Nd-TNTAs have similar morphology with the pristine TNTAs. The decoration of Nd2O3 makes not only the absorption in the ultraviolet area enhanced but also the band edge absorption shifted. Nd-TNTAs exhibit high photoelectrocatalytic activity in degradation of organic compounds. The degradation efficiency of methyl orange using Nd-TNTAs after 3 h test period is approximately 64%, which is almost twice as high as that using TNTAs. Besides as the inspired important ecomaterials, Nd-TNTAs prepared in the present work are promising for applications in dye-sensitized solar cells or as luminescent and biological materials. (C) 2012 Elsevier B.V. All rights reserved.
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