制备高度有序且对可见光响应的 Fe-C-N 共掺杂 TiO2 纳米管。
The fabrication of highly ordered and visible-light-responsive Fe-C-N-codoped TiO2 nanotubes.
机构信息
Department of Chemical and Biochemical Engineering, University of Western Ontario, 1151 Richmond Street, London, ON, N6A 3K7, Canada.
出版信息
Nanotechnology. 2010 Feb 5;21(5):055706. doi: 10.1088/0957-4484/21/5/055706. Epub 2009 Dec 21.
A one-step method for the fabrication of Fe-C-N-codoped TiO2 nanotubes by electrochemical anodization is reported. The proposed method is both simple and efficient. The prepared samples were annealed at 550 degrees C for 3 h. The resulting nanotubes were characterized by SEM, XRD, XPS, EDX and UV-vis spectrophotometer. The results showed that the average tube diameter of the nanotubes was 70 nm and wall thickness was 20 nm and the average tube length was 2.4 microm. The doped TiO2 nanotubes exhibited strong absorption in the visible-light region. The maximum photocurrent efficiency measured under solar simulator was 2.7%.
本文报道了一种通过电化学阳极氧化法一步制备 Fe-C-N 共掺杂 TiO2 纳米管的方法。该方法简单高效。所制备的样品在 550°C 下退火 3 小时。通过 SEM、XRD、XPS、EDX 和紫外可见分光光度计对所得纳米管进行了表征。结果表明，纳米管的平均管径为 70nm，壁厚为 20nm，平均管长为 2.4μm。掺杂 TiO2 纳米管在可见光区具有较强的吸收。在太阳模拟器下测量的最大光电流效率为 2.7%。
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