Surface acidity and photocatalytic activity of Nb{sub 2}O{sub 5}/TiO{sub 2} photocatalysts
Journal Article
·
· Journal of Solid State Chemistry
- Brown Univ., Providence, RI (United States)
- Exxon Research and Engineering, Annandale, NJ (United States)
Samples of Nb{sub 2}O{sub 5}/TiO{sub 2} mixed oxide powders were prepared by the incipient wetness method. The photocatalytic activities of TiO{sub 2} based catalysts were evaluated by the degradation of 1,4-dichlorobenzene (DCB). The addition of Nb{sub 2}O{sub 5} to TiO{sub 2} 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.
- OSTI ID:
- 508681
- Journal Information:
- Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 115; ISSN 0022-4596; ISSN JSSCBI
- Country of Publication:
- United States
- Language:
- English
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