Solvent-induced improvement of Au photo-deposition and resulting photo-catalytic efficiency of Au/TiO2
| Autor: | Bart Kenens, Kana Miyakawa, Gang Lu, Maha Chamtouri, Hiroyuki Naiki, Hiroshi Uji-i, Tomoko Inose, Hiroki Watanabe, Akito Masuhara, Yasuhiko Fujita, Remko Aubert, Yasufumi Hayasaka |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
genetic structures General Chemical Engineering Nanoparticle Nanotechnology 02 engineering and technology 010402 general chemistry Photochemistry 01 natural sciences 7. Clean energy Catalysis Metal Adsorption Deposition (law) business.industry General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Solvent Semiconductor Colloidal gold visual_art visual_art.visual_art_medium sense organs 0210 nano-technology business |
| Zdroj: | RSC Advances. 6:97464-97468 |
| ISSN: | 2046-2069 |
| Popis: | Metal nanoparticle photo-deposition on TiO2 enhances the semiconductor catalytic activity. We show for the first time that strong adsorption of simple diol-molecules improves the photo-deposition, by introducing a TiO2 midgap state and blocking active sites. The resulting photo-deposited gold nanoparticles are mono-dispersed and well-distributed over the TiO2 particles. The photo-catalytic activity of the Au/TiO2 systems obtained in ethyleneglycol was significantly enhanced compared to those prepared in conventional solvents, such as water and ethanol. |
| Databáze: | OpenAIRE |
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