Application of ITO films to photocatalysis
| Autor: | Song Ji Li, K Nishiyama, T. Inoue, Hisami Yumoto, T Sako |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Chemistry
Whiskers Metals and Alloys Surfaces and Interfaces Sputter deposition Photochemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials Indium tin oxide Catalysis chemistry.chemical_compound Chemical engineering Materials Chemistry Photocatalysis Gas detector Nitrogen dioxide Electroplating |
| Zdroj: | Thin Solid Films. 345:38-41 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/s0040-6090(99)00094-2 |
| Popis: | The concentration of NO 2 gas, an environmental pollutant, can be reduced by photocatalysis. A simple method for measuring the efficiency of photocatalysis is required. In general, the efficiency of photocatalysis is determined by measuring the decrease in the concentration of NO 2 gas during UV light irradiation. In this study, an NO 2 gas sensor made of ITO film was used to detect the photocatalytic oxidation of NO 2 . When ZnO film prepared by electroplating was used as the photocatalyst, the photocatalytic reaction was measured continuously with good reproducibility, showing that this method is useful. Next, the photocatalyst was changed from ZnO to ITO film, and the photocatalytic efficiency was studied. ITO film composed of fine particles (30–60 nm), which was prepared by magnetron sputtering, had a very low efficiency. However, ITO film with ITO whiskers (30 nm in diameter and 500–700 nm in length) prepared by the electron shower method showed a similar high efficiency to ZnO film. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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