Surface Acidity and Photocatalytic Activity of Nb2O5/TiO2 Photocatalysts
| Autor: | S. Soled, H. Cui, Aaron Wold, Kirby Dwight |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Chemistry
Inorganic chemistry Binary compound Concentration effect Condensed Matter Physics Electronic Optical and Magnetic Materials Catalysis Inorganic Chemistry chemistry.chemical_compound Adsorption Materials Chemistry Ceramics and Composites Photocatalysis Mixed oxide Titration Physical and Theoretical Chemistry Chemical decomposition |
| Zdroj: | Journal of Solid State Chemistry. 115:187-191 |
| ISSN: | 0022-4596 |
| DOI: | 10.1006/jssc.1995.1118 |
| Popis: | Samples of Nb2O5/TiO2 mixed oxide powders were prepared by the incipient wetness method. The photocatalytic activities of TiO2 based catalysts were evaluated by the degradation of 1,4-dichlorobenzene (DCB). The addition of Nb2O5 to TiO2 greatly increased its photocatalytic activity and also increased the catalyst's surface acidity, as determined by the n-butylamine titration method. A correlation between the maximum photocatalytic activity and the number and strength of acid sites were observed. Consequently, the same structural feature that enhances the adsorption of n-butylamine appears to promote the catalytic activity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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