Suppression of surface recombination on TiO2 anatase photocatalysts in aqueous solutions containing alcohol
文献类型：期刊论文
| 作者 | Semenikhin, OA; Kazarinov, VE; Jiang, L; Hashimoto, K; Fujishima, A |
| 刊名 | LANGMUIR
 |
| 出版日期 | 1999-05-25 |
| 卷号 | 15期号:11页码:3731-3737 |
| ISSN号 | 0743-7463 |
| 英文摘要 | Intensity-modulated photocurrent spectroscopy (IMPS) was applied to studying the mechanism of photoelectrochemical decomposition of a model organic compound, ethanol, on a TiO2 anatase photoelectrode in aqueous solution. The frequency spectra of the intensity-modulated photocurrents observed on the TiO2 photoelectrode at low band bending were drastically changed in the presence of alcohol. Without the alcohol, the frequency dependence of the modulated photocurrents were similar to those reported previously for TiO2 electrodes and were typical for the case of surface recombination occurring on surface states, while upon addition of alcohol the photocurrent frequency dependence was no longer observed. This fact suggests that alcohol suppresses the recombination processes at the surface of the TiO2 photoelectrode. Possible mechanisms for this phenomenon are discussed. The results demonstrate that IMPS is a powerful tool for studying the mechanism of photocatalytic decomposition of organic pollutants on semiconductor electrodes. |
| 语种 | 英语 |
| WOS记录号 | WOS:000080610400008 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/75399]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fujishima, A |
| 作者单位 | 1.Univ Tokyo, Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan 2.Russian Acad Sci, AN Frumkin Electrochem Inst, Moscow 117071, Russia 3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China 4.Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan |
| 推荐引用方式 GB/T 7714 | Semenikhin, OA,Kazarinov, VE,Jiang, L,et al. Suppression of surface recombination on TiO2 anatase photocatalysts in aqueous solutions containing alcohol[J]. LANGMUIR,1999,15(11):3731-3737. |
| APA | Semenikhin, OA,Kazarinov, VE,Jiang, L,Hashimoto, K,&Fujishima, A.(1999).Suppression of surface recombination on TiO2 anatase photocatalysts in aqueous solutions containing alcohol.LANGMUIR,15(11),3731-3737. |
| MLA | Semenikhin, OA,et al."Suppression of surface recombination on TiO2 anatase photocatalysts in aqueous solutions containing alcohol".LANGMUIR 15.11(1999):3731-3737. |
入库方式： OAI收割
来源：化学研究所
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