Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Effect of doping mode on the photocatalytic activities of Mo/TiO2 | |
| Yang, Y; Li, XJ; Chen, JT; Wang, LY | |
| 2004-05-21 | |
| Source Publication | JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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| Volume | 163Issue:3Pages:517-522 |
| Abstract | The thin films of photocatalyst, TiO2 doped by Mo6+ in different forms, were prepared by sol-gel method. The photocatalysts were characterized by X-ray diffraction (XRD), UV-Vis transmittance spectra and electrochemical impedance spectroscopy, and the photocatalytic activity was characterized by photocatalytic degradation of aqueous methyl orange under UV radiation. The results showed that the TiO2, doped by Mo6+ extend absorption edge and interfacial charge transfer resistance decrease. The photocatalytic activity of TiO2 doped by Mo6+ in bottom is much better than that of pure TiO2, those doped in surface, or those doped uniformly. The activity of TiO2 doped by Mo6+ in bottom mode at optimal concentration, 1 at.%, increased nearly two times than pure TiO2. The effects of doping modes on the photocatalytic activities were discussed in the terms of separateness of charge carriers that there maybe form barrier of carrier in bottom doping mode and then restraining the (e(-)-h(+)) pair recombination. (C) 2004 Elsevier B.V All rights reserved. |
| Subtype | Article |
| Keyword | Photocatalysis Titanium Dioxide Molybdenum Doping Mode Thin Film |
| WOS Headings | Science & Technology ; Physical Sciences |
| WOS Subject Extended | Chemistry |
| WOS Keyword | TIO2 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000221685700030 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/10488 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Y,Li, XJ,Chen, JT,et al. Effect of doping mode on the photocatalytic activities of Mo/TiO2[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2004,163(3):517-522. |
| APA | Yang, Y,Li, XJ,Chen, JT,&Wang, LY.(2004).Effect of doping mode on the photocatalytic activities of Mo/TiO2.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,163(3),517-522. |
| MLA | Yang, Y,et al."Effect of doping mode on the photocatalytic activities of Mo/TiO2".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 163.3(2004):517-522. |
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