Photocatalytic degradation of benzene on zeolite-incorporated TiO2 film.
Zeolite powder was incorporated into the TiO2 film. Their photoactivities were evaluated for the gas phase degradation of benzene. Seven zeolite samples were used in this study and each enhanced the photocatalytic degradation. Humidity in the gas sample increased the degradation, but suppressed the adsorption of benzene to the TiO2 film. It was noted that the photoactivity was inversely proportional to the silica/alumina ratio of zeolite, whereas adsorption increased with this ratio. It was suggested that the adsorption of water onto zeolite contributes to the enhancement of benzene degradation.
National Institute of Advanced Industrial Science and Technology, 1-1, Higashi, Tsukuba, Ibaraki, Japan.
Teruaki
T
Hisanaga
Keiichi
K
Tanaka
D000327:Adsorption; D001554:Benzene / Q000737:chemistry*; D002384:Catalysis; D004396:Coloring Agents / Q000737:chemistry*; D004785:Environmental Pollutants / Q000032:analysis*; D006813:Humidity; D010777:Photochemistry; D014025:Titanium / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D017641:Zeolites / Q000737:chemistry*
D004396:Coloring Agents; D004785:Environmental Pollutants; D014867:Water; D017641:Zeolites; C009495:titanium dioxide; D014025:Titanium; D001554:Benzene