| Fe(Ⅵ)在光催化条件下的分解及协同光催化降解BPA的研究 |
| 摘要点击 1918 全文点击 1384 投稿时间：2008-04-14 修订日期：2008-06-25 |
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| 中文关键词 双酚A 内分泌干扰物 高铁酸钾 光催化氧化 |
| 英文关键词 BPA endocrine disrupting chemicals potassium ferrate photocatalytic oxidation |
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| 中文摘要 |
| 研究了不同条件下Fe(Ⅵ)-光催化氧化方法对双酚A (BPA)的降解作用.结果表明，在光催化氧化中，TiO2表面产生的光生电子(e-cb)会将Fe(Ⅵ)还原成Fe(Ⅴ)和Fe(Ⅳ)，Fe(Ⅵ)的加入对光催化氧化起到了协同作用，提高了光催化氧化的效率.此外，还研究了Fe(Ⅵ)在不同条件下的分解情况，发现光催化氧化能促进Fe(Ⅵ)的分解，随着pH值的增加，TiO2表面吸附Fe(Ⅵ)的能力减弱.采用光催化氧化方法降解BPA时，加入Fe(Ⅵ)可以提高BPA的氧化降解速率2.5倍. |
| 英文摘要 |
| The degradation of bispehnol A (BPA) in aqueous suspension by interaction of photocatalytic oxidation and ferrate(Ⅵ) oxidation was investigated under different conditions. The results indicate that the formation of Fe(Ⅴ) and Fe(Ⅳ) is in the photoreduction of Fe(Ⅵ) by electron (e-cb) on the surface of TiO2. The oxidation efficiency of the photocatalytic oxidation in the presence of Fe(Ⅵ) is much greater than that without Fe(Ⅵ). In addition, the decomposition of Fe(Ⅵ) under different conditions was also investigated. The results indicate that the Fe(Ⅵ) reduction is enhanced by photocatalytic oxidation and the adsorption capacity of Fe(Ⅵ) at TiO2 surface decreases with pH increase. When the photocatalytic oxidation is used to degrade BPA, Fe(Ⅵ) could increase the degradation rate about 2.5 times. |
