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- Title
Design of Composite Photocatalyst of TiO<sub>2</sub> and Y-Zeolite for Degradation of 2-Propanol in the Gas Phase under UV and Visible Light Irradiation.
- Authors
Takashi Kamegawa; Yasushi Ishiguro; Ryota Kido; Hiromi Yamashita
- Abstract
Hydrophobic Y-zeolite (SiO2/Al2O3 = 810) and TiO2 composite photocatalysts were designed by using two different types of TiO2 precursors, i.e., titanium ammonium oxalate and ammonium hexafluorotitanate. The porous structure, surface property and state of TiO2 were investigated by various characterization techniques. By using an ammonium hexafluorotitanate as a precursor, hydrophobic modification of the Y-zeolite surface and realizing visible light sensitivity was successfully achieved at the same time after calcination at 773 K in the air. The prepared sample still maintained the porous structure of Y-zeolite and a large surface area. Highly crystalline anatase TiO2 was also formed on the Y-zeolite surface by the role of fluorine in the precursor. The usages of ammonium hexafluorotitanate were effective for the improvement of the photocatalytic performance of the composite in the degradation of 2-propanol in the gas phase under UV and visible light (λ > 420 nm) irradiation.
- Subjects
PHOTOCATALYSTS; PHOTOCATALYSIS; HEXAFLUOROETHANE; FOOD irradiation; IRRADIATION
- Publication
Molecules, 2014, Vol 19, Issue 10, p16477
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules191016477