Золь-гель синтез та дослідження структури мезопористих плівок бінарних цирконій-титанових оксидів
Optically transparent, crack-free ordered mesoporous titania and zirconia-doped titania thin films were fabricated by sol-gel technique, using non-ionic amphiphylic block copolymer Pluronic P123 as template. The structural, sorptive, and optical properties of these films were characterized using low...
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| Datum: | 2004 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | Ukrainisch |
| Veröffentlicht: |
Chuiko Institute of Surface Chemistry National Academy of Sciences of Ukraine
2004
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| Online Zugang: | https://surfacezbir.com.ua/index.php/surface/article/view/147 |
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| Назва журналу: | Surface |
| Завантажити файл: |  |
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Surface| Zusammenfassung: | Optically transparent, crack-free ordered mesoporous titania and zirconia-doped titania thin films were fabricated by sol-gel technique, using non-ionic amphiphylic block copolymer Pluronic P123 as template. The structural, sorptive, and optical properties of these films were characterized using low-angle XRD and UV/Vis spectroscopy measurements. An addition of zirconia into the TiO2 matrix was found to retard sintering of the samples, thus increasing specific surface areas after calcination up to 400oC. Catalytic activity of mesoporous TiO2 and TiO2/ZrO2 (5-30%) films in Cr(IV) to Cr(III) photoreduction grows in according to increase in specific surface area of the samples. |
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