Photocatalytic reactions of pyrene at TiO2/water interfaces
文献类型：期刊论文
| 作者 | Wen, S; Zhao, JC; Sheng, GY; Fu, JM; Peng, PA |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2003 |
| 卷号 | 50期号:1页码:111-119 |
| 关键词 | Pyrene Tio2 Photodegradation Aqueous Solution |
| ISSN号 | 0045-6535 |
| 英文摘要 | The photocatalytic oxidation of pyrene preadsorbed on TiO2 is examined in aqueous suspension under UV irradiation. Chemical oxygen demand measurements, UV-VIS spectrophotometer, infrared spectrometer and GC-MS analytical techniques were used to monitor the formed intermediates. During the oxidation processes, the ring-open reaction, hydroxylation and ketolysis occurred to produce some intermediate products (4-oxapyrene-5-one, 1,6- or 1,8-pyrenediones, 4,5-phenanthrenedialdehyde, cyclopenta[def]phenanthrene). Some factors affecting the photodegradation rate were also studied. The results were different from other studies: The pH of the dispersion, ratio of Py/TiO2:water had little effect on the photooxidation rate of pyrene catalyzed by TiO2, while the surface coverage, addition of Fe3+ affected it greatly. (C) 2002 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000180077300015 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/80085]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhao, JC |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Photochem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wen, S,Zhao, JC,Sheng, GY,et al. Photocatalytic reactions of pyrene at TiO2/water interfaces[J]. CHEMOSPHERE,2003,50(1):111-119. |
| APA | Wen, S,Zhao, JC,Sheng, GY,Fu, JM,&Peng, PA.(2003).Photocatalytic reactions of pyrene at TiO2/water interfaces.CHEMOSPHERE,50(1),111-119. |
| MLA | Wen, S,et al."Photocatalytic reactions of pyrene at TiO2/water interfaces".CHEMOSPHERE 50.1(2003):111-119. |
入库方式： OAI收割
来源：化学研究所
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