Nd₂O₃-decorated TiO₂ nanotube arrays with high photoelectrocatalytic activity

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• 作者：Lingjie Li^a ; Zhuqing Zhou^a ; Jinglei Lei^a ; ^{JLLei@cqu.edu.cn} ; Jianxin He^a ; Peipei Liu^a ; Fusheng Pan^b
• 关键词：TiO2 nanotube ; Neodymium oxide ; Hydrothermal method ; Photoelectrocatalysis ; Electron microscopy ; XPS
• 刊名：Materials Letters
• 出版年：2012
• 期刊代码：59_0167577x
• 类别：ms
• 出版时间：15 July, 2012
• 卷：79
• 期：Complete
• 页码：252-255
• 文件大小：544 K

摘要

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 掳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.