Low temperature deposition and characterization of TiO2 photocatalytic film through cold spray
| Autor: | Feng Han, Chang-Jiu Li, Guan-Jun Yang, Akira Ohmori, Wen-Ya Li |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
Scanning electron microscope Gas dynamic cold spray General Physics and Astronomy Mineralogy Surfaces and Interfaces General Chemistry Condensed Matter Physics Microstructure Surfaces Coatings and Films Titanium oxide chemistry.chemical_compound Chemical engineering chemistry Titanium dioxide Photocatalysis Thin film Photodegradation |
| Zdroj: | Applied Surface Science. 254:3979-3982 |
| ISSN: | 0169-4332 |
| Popis: | Cold spray was employed as a novel low temperature approach to deposit titanium dioxide (TiO 2 ) photocatalytic film. The film microstructure was characterized using X-ray diffraction and scanning electron microscopy. The photocatalytic performance was examined through acetaldehyde degradation under ultraviolet illumination. Results showed that TiO 2 film was successfully deposited on substrate surface through cold spray. The film thickness reached up to 15 μm. The film presented a rough surface and porous structure. Owing to the low temperature of spray powder, no phase and particle size changes occurred to TiO 2 during deposition. It was found that the cold-sprayed TiO 2 film was active for photodegradation of acetaldehyde. |
| Databáze: | OpenAIRE |
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