Electrodeposition of silver on CrTiO₂ nanotubes and study of their structural, morphological, optical and photocatalytic properties

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• 作者：Mohamad Mohsen Momeni ; Yousef Ghayeb…
• 刊名：Journal of Materials Science: Materials in Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：28
• 期：3
• 页码：2607-2614
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1573-482X
• 卷排序：28

文摘

CrTiO₂ nanotubes were prepared by facile one step anodization of titanium substrate and silver nanoparticles were loaded on prepared nanotubes by electrodeposition. Ag/CrTiO₂ samples were characterized by X-ray diffraction, field emission scanning electron microscope, ultraviolet–visible spectroscopy and energy dispersive X-ray spectrometer methods. The degradation of methylene blue (MB) was used as a model reaction to evaluate the photocatalytic activity of the obtained samples. Results indicated that the degradation of MB was enhanced using Ag/CrTiO₂ samples. Kinetic research showed that photo degradation process followed the first-order reaction; the apparent reaction rate constant of Ag/CrTiO₂ sample was approximately two times higher than that on the bare CrTiO₂ sample. After five successive cycles under 600 min visible light irradiation, Ag/CrTiO₂ remained highly stable photocatalytic activity. The catalysts prepared in this study exhibit industrially relevant interests due to the low cost and good photocatalytic activity.