Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway
文献类型：期刊论文
| 作者 | Zhao, W; Chen, CC; Ma, WH; Zhao, JC; Wang, DX; Hidaka, H; Serpone, N |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2003-07-21 |
| 卷号 | 9期号:14页码:3292-3299 |
| 关键词 | Dyes Photochemistry Photosensitization Platinum Titanium |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.200204559 |
| 英文摘要 | The titanium dioxide photocatalyst is employed to examine the influence of chemisorbed hexachloroplatinate(iv) anions (PtCl62-) on the surface of P-25 TiO2 particles on the photoinduced conversion of the azo dye Ethyl Orange (EO) in visible light-illuminated Pt-IV/TiO2 dispersions. Spin-trap electron spin resonance (ESR) spectral results, measurement of quantities of organoperoxides formed, total organic carbon (TOC) and chemical oxygen demand (CODC) assays, together with XPS evidence show that the self-sensitized transformation dynamics of the EO dye mediated by Pt-IV/TiO2 are much faster than those occurring on naked TiO2 under otherwise identical conditions of visible light irradiation. X-ray photoelectron spectral data also show that under the experimental conditions used, no Pt-0 formed on the titania particles during visible light irradiation. We propose a reaction mechanism in which the more rapid conversion of EO in the presence Of PtCl62- is caused principally by photoexcitation of the dye and not by localized excitation of the tetrachloroplatinate(iv)/TiO2 particles. |
| 语种 | 英语 |
| WOS记录号 | WOS:000184479300013 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/79761]  |
| 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, Beijing 100080, Peoples R China 2.Meisei Univ, Frontier Res Ctr Global Environm Protect, Hino, Tokyo, Japan 3.Concordia Univ, Dept Chem & Biochem, Montreal, PQ H3G 1M8, Canada |
| 推荐引用方式 GB/T 7714 | Zhao, W,Chen, CC,Ma, WH,et al. Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway[J]. CHEMISTRY-A EUROPEAN JOURNAL,2003,9(14):3292-3299. |
| APA | Zhao, W.,Chen, CC.,Ma, WH.,Zhao, JC.,Wang, DX.,...&Serpone, N.(2003).Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway.CHEMISTRY-A EUROPEAN JOURNAL,9(14),3292-3299. |
| MLA | Zhao, W,et al."Efficient photoinduced conversion of an azo dye on hexachloroplatinate(IV)-modified TiO2 surfaces under visible light irradiation - A photosensitization pathway".CHEMISTRY-A EUROPEAN JOURNAL 9.14(2003):3292-3299. |
入库方式： OAI收割
来源：化学研究所
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