An approach toward TiO2 nanostructure growth with tunable properties: influence of concentration of titanium butoxide in a hydrothermal process
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- 作者：Weiming Wu ; Meiling Hong ; Xiaoning Guo…
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：27
- 期：7
- 页码：7049-7054
- 全文大小：984 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Optical and Electronic Materials
Characterization and Evaluation Materials - 出版者：Springer New York
- ISSN：1573-482X
- 卷排序：27
文摘
TiO2 thin films with tunable morphology and physical properties were prepared by varying the concentration of C16H36O4Ti (0.005, 0.008, 0.01 and 0.03 M) in a hydrothermal process. As the reaction concentration of C16H36O4Ti increased, the roughness and thickness of rutile TiO2 are increased, indicating that the structure transitioned from nanowires/nanoparticles to nanobelts with nanowires structure and finally to nanorods. The structural evolution was accompanied by considerable variations in the optical properties, wettability, and photocatalytic properties of TiO2. The vertically-oriented TiO2 nanorods prepared with 0.03 M titanium butoxide typically showed strong hydrophilicity and high photocatalytic efficiency (97.8 %) following UV irradiation. These findings show that specific TiO2 thin films with tunable properties can be prepared for decolorization of organic contaminants.