| 网状Ti/TiO2电极光电催化氧化若丹明B |
| 摘要点击 2327 全文点击 2246 投稿时间：2001-08-16 修订日期：2001-11-26 |
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| 中文关键词 网状电极 阳极氧化 TiO2 光电催化氧化 若丹明B |
| 英文关键词 mesh titanium anodisation TiO2 PEC oxidation Rh B |
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| 中文摘要 |
| 用阳极氧化法制备出一种网状Ti/TiO2电极,扫描电镜和拉曼光谱对电极表面TiO2膜的形貌和晶体结构的检测结果表明:膜的结构和性能受阳极氧化过程中氧化速率的影响,在控制实验条件下,锐钛型TiO2是其主要结晶形态.若丹明B的光电催化降解和光催化降解的实验结果表明:外加偏压可以有效地提高有机物的光催化降解效率.TOC的测定结果显示,在光电催化氧化过程中,若丹明B几乎完全矿化.若丹明B在光电催化降解过程中,生色基团的破坏与脱乙基作用同时发生. |
| 英文摘要 |
| An innovative mesh titanium dioxide (TiO2) electrode was prepared by anodisation. The morphology and the crystalline texture of the TiO2 film on electrode were examined by SEM and Raman spectroscopy respectively. The results indicated that the structure and properties of the film depended on anodisation rate, and the anatase was the dominant component under the controlled experimental conditions. Biasing could increase the efficiency of photocatalytic degradation of organic matters. Mineralization Rhodamine B (Rh B) was complete relatively in photoelectro catalytic (PEC) oxidation. Both chromogen destruction of Rh B and de ehtylation in PEC degradation took place simultaneously. |
