Au thin films nano-structuration on polycrystalline anatase and rutile TiO2 substrates towards photocatalytic applications
| Autor: | Francesco Ruffino, G. Cacciato, R. Reitano, V. Privitera, M. Zimbone, M. G. Grimaldi |
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| Rok vydání: | 2016 |
| Předmět: |
ENVIRONMENT
Anatase Materials science business.industry Mechanical Engineering Nanotechnology 02 engineering and technology METAL NANOPARTICLES 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Semiconductor Mechanics of Materials Rutile Nano Photocatalysis General Materials Science Dewetting Crystallite Thin film 0210 nano-technology business |
| Zdroj: | Materials Science in Semiconductor Processing. 42:40-44 |
| ISSN: | 1369-8001 |
| DOI: | 10.1016/j.mssp.2015.07.074 |
| Popis: | Recent years have shown a renewed interest in the use of functional semiconductors for conversion of solar to chemical energy by photocatalysis. Moreover, metal nanoparticles (NPs) are able to improve the photocatalytic efficiency due to their localized surface plasmon resonance (LSPR). In this sense, Au NPs are of particular interest since they exhibit resonant behavior in the visible range, allowing the harvesting of a large amount of the solar flux. Among semiconductor photocatalysts, TiO 2 has been investigated due to its abundance, stability, non-toxicity and high photocatalytic activity. In this work, the properties of Au NPs/TiO 2 composite materials are investigated in detail due to their potential application in visible driven photocatalysis. Au NPs are obtained after thermal dewetting of sputtered Au films on TiO 2 . We correlate the photocatalytic activity of the Au NPs-TiO 2 composite film under UV illumination with structural properties and TiO 2 phase. |
| Databáze: | OpenAIRE |
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