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Abstract
Ag/Pt-modified TiO2nanocomposites were synthesized using the sol–gel method. The effect of metal typeand amount as well as synthesis route on the photocatalytic activity in reaction of toluene removal, usedas a model volatile organic compound, was investigated. Toluene, at the concentration of about 200 ppm,was irradiated over modified TiO2using light-emitting diodes (LEDs, max= 415 nm). The results showedthat toluene could be mostly removed from the air after 20 min of irradiation over TiO2modified withAg/Pt bimetallic nanoparticles. The efficiency of toluene degradation in four subsequent cycles decreasedfrom 99 to 53%, but it could be re-established by thermal treating of the sample. The photocatalyst show-ing the highest degradation rate consisted of large crystallites of Ag with a diameter of about 15–30 nmwith fine Pt nanoparticles ranging from 0.8 to 2.0 nm surrounding TiO2layer.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
CATALYSIS TODAY
no. 230,
pages 104 - 111,
ISSN: 0920-5861 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Zielińska-Jurek A., Zaleska-Medynska A.: Ag/Pt-modified TiO2 nanoparticles for toluene photooxidation in the gas phase// CATALYSIS TODAY. -Vol. 230, (2014), s.104-111
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.cattod.2013.11.044
- Verified by:
- Gdańsk University of Technology
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