Adsorption factor and photocatalytic degradation of dye-constituent aromatics on the surface of TiO2 in the presence of phosphate anions
文献类型：期刊论文
| 作者 | Chen, F; Zhao, JC; Hidaka, H |
| 刊名 | RESEARCH ON CHEMICAL INTERMEDIATES
 |
| 出版日期 | 2003 |
| 卷号 | 29期号:7-9页码:733-748 |
| 关键词 | Titanium Dioxide Photodegradation Photo-oxidation Dye |
| ISSN号 | 0922-6168 |
| 英文摘要 | The photocatalytic degradation for some kinds of dye-constituent aromatics with TiO2 in the presence of phosphate anions in aqueous dispersion was investigated under both visible light (lambda > 480 nm) and UV irradiation. The influences of phosphate anion upon the degradation of organics under these different conditions was revealed by the measurement of point of zero zeta-potential (P-ZC) of TiO2, UV-VIS spectra, HPLC and LC-MS. The adsorption and photodegradation of some organics, which adsorb on the surface of TiO2 by a dominating group bearing a positive charge, was enhanced, while that of others, which adsorb on the surface of TiO2 by a dominating group bearing negative charge, was depressed by the presence of phosphate anions under UV irradiation at the experimental conditions (pH 4.3). It was confirmed that better adsorption of organics on the surface of TiO2 had an advantage in their photocatalytic degradation under UV irradiation. On the other hand, although the adsorption of rhodamine B (RhB) and methylene Blue (MB) markedly increased, their degradation under visible light irradiation was depressed in the presence of phosphate anions. It is suggested that phosphate anion greatly blocked the electron transfer from excited RhB and MB molecules as RhB and MB molecules predominantly adsorbed on the surface of TiO2 through the electrostatic interaction with surface adsorbed phosphate anions. |
| 语种 | 英语 |
| WOS记录号 | WOS:000188420100008 |
| 出版者 | VSP BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/80347]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Hidaka, H |
| 作者单位 | 1.Meisei Univ, Frontier Res Ctr Global Environm Protect, Tokyo 1918506, Japan 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, F,Zhao, JC,Hidaka, H. Adsorption factor and photocatalytic degradation of dye-constituent aromatics on the surface of TiO2 in the presence of phosphate anions[J]. RESEARCH ON CHEMICAL INTERMEDIATES,2003,29(7-9):733-748. |
| APA | Chen, F,Zhao, JC,&Hidaka, H.(2003).Adsorption factor and photocatalytic degradation of dye-constituent aromatics on the surface of TiO2 in the presence of phosphate anions.RESEARCH ON CHEMICAL INTERMEDIATES,29(7-9),733-748. |
| MLA | Chen, F,et al."Adsorption factor and photocatalytic degradation of dye-constituent aromatics on the surface of TiO2 in the presence of phosphate anions".RESEARCH ON CHEMICAL INTERMEDIATES 29.7-9(2003):733-748. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。