Study on the preparation of titania films for photocatalytic application by micro-arc oxidation
Study on the preparation of titania films for photocatalytic application by micro-arc oxidation
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DOI：
10.1016/j.solmat.2006.03.017
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发表时间：
2006-09
影响因子：
6.9
通讯作者：
J. F. Li;L. Wan;Jiayou Feng
中科院分区：
文献类型：
--
作者：
J. F. Li;L. Wan;Jiayou Feng
采用微弧氧化技术，在含有Na 3 PO 4和NaF的电解液中，在钛基体上制备了纳米TiO 2薄膜。该过程使用DC电源在高电压和电流下进行。采用X射线衍射、X射线荧光光谱、扫描电镜和紫外-可见分光光度计分别对薄膜的晶体结构、化学成分、表面形貌和光学性能进行了研究。以亚甲基蓝为降解对象，考察了薄膜的光催化活性。本文还讨论了电解液中NaF浓度与薄膜性能的关系。
Nanocrystalline titania films on titanium substrate were prepared by micro-arc oxidation in an electrolytic solution containing Na3PO4and NaF. The process was carried out at high voltages and currents using a DC power supply. The crystal structure, chemical composition, surface morphology and optical property of the films were investigated by X-ray diffraction, X-ray fluorescence spectroscopy, scanning electron microscopy and UV–VIS spectroscopy, respectively. The photocatalytic activity of the films was evaluated by the decomposition of methylene blue. The relation between the concentration of NaF in the electrolyte and the property of the titania films was also discussed in the paper.