Influence of alternating current electric field on the photocatalytic activity of Mo6+-doped and Ag0-loaded nano-TiO2
| Autor: | Xingke Wu, Peng Hou, Tianxiang Zhao, Lishi Wen, Pengfei Zhang |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Mechanical Engineering Doping Direct current Metals and Alloys law.invention chemistry.chemical_compound Semiconductor Nuclear magnetic resonance chemistry Chemical engineering Mechanics of Materials law Electric field Materials Chemistry Methyl orange Photocatalysis business Alternating current Voltage |
| Zdroj: | Journal of Alloys and Compounds. 587:511-514 |
| ISSN: | 0925-8388 |
| Popis: | Influence of external applied electric field on the photocatalytic activity of Mo6+-doped and Ag0-loaded nano-TiO2 (Mo6+/Ag0/TiO2) was studied by the degradation of methyl orange (MO). The degradation rate of MO by direct current (DC) electric field could be enhanced to some extent but not proportional to voltage, while the degradation rate of MO by alternating current (AC) electric field was obviously improved along with the increase of frequency. This shows not only the voltage but also the frequency of external electric field affect the photocatalytic activity of the composite catalyst. From the theories of semiconductor and quantum mechanics, the mechanism for AC electric field to promote the degradation of organic pollutant was discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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