| 赵凤伟.TiO2-CuPcTs敏化薄膜光电流及可见光光催化性能[J].分子催化,2010,(4):0 |
| TiO2-CuPcTs敏化薄膜光电流及可见光光催化性能 |
| The photocurrent and visible-light photocatalytic properties of CuPcTs sensitized TiO2 film |
| 投稿时间：2010-06-17 修订日期：2010-07-21 |
| DOI： |
| 中文关键词: TiO2薄膜 四磺酸酞菁铜 染料敏化 可见光光催化 |
| 英文关键词:TiO2 film Copper phthalocyanine tetrasulfonic acid Dye sensitization Visible-light photoelectrocatalysis |
| 基金项目:国家重点基础研究发展计划（973计划）;国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要: |
| 以四磺酸酞菁铜（CuPcTs）为敏化剂，分别在玻璃和图案化的氧化铟锡（ITO）基底上制备敏化薄膜TiO2-CuPcTs和敏化器件ITO/TiO2-CuPcTs/ITO。以RhB在可见光下的光催化降解评价敏化薄膜的光催化性能。并对敏化薄膜采用UV-Vis和Raman技术进行表征。同时利用敏化器件的结构特性，测定其在氮气和纯水体系下的光电流。研究结果表明，TiO2-CuPcTs有效地拓宽了TiO2的可见光谱响应，光催化降解RhB的效率为空白TiO2薄膜的3.7倍，并且重复性能稳定。与ITO/TiO2/ITO器件相比，敏化器件ITO/TiO2-CuPcTs/ITO在氮气和水体系条件下具有较高的光电流，验证了CuPcTs被激发后将电子转移到TiO2导带上的敏化机理。 |
| 英文摘要: |
| With Copper Phthalocyanine Tetrasulfonic acid (CuPcTs) as photosensitizer, sensitized film TiO2-CuPcTs and sensitized device ITO/TiO2-CuPcTs/ITO were prepared using glass and patterned indium tin oxide(ITO) as substrate, respectively. The photocatalytic properties of sensitized film were evaluated by photocatalytic degradation of RhB under visible light irradiation. The dye-sensitization film was characterized by ultraviolet-visible spectroscopy and Raman spectra. At the same time, the photocurrent of ITO/TiO2-CuPcTs/ITO in
conditions of nitrogen and water system were monitored based on structural characteristics of sensitized device. The results showed that, TiO2-CuPcTs could effectively broaden the visible light spectrum range. The photocatalytic degradation rhodamine B rate of TiO2-CuPcTs film were 3.7-fold as blank TiO2 film and indicated good reproductivity. The ITO/TiO2-CuPcTs/ITO device exhibited larger photocurrent in conditions of nitrogen and water system, which confirmed the sensitization mechanism that the electrons can be transferred from excited CuPcTs to conduction band of TiO2. |
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