| Title: | Preparation of a titania/X-zeolite/porous glass composite photocatalyst using hydrothermal and drop coating processes |
| Author(s): | Yasumori A; Yanagida S; Sawada J; |
| Address: | "Department of Materials Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan. yasumori@rs.noda.tus.ac.jp. Photocatalysis International Research Center, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan. yasumori@rs.noda.tus.ac.jp. Department of Materials Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan. YANAGIDA.Sayaka@nims.go.jp. Photocatalysis International Research Center, Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan. YANAGIDA.Sayaka@nims.go.jp. Department of Materials Science and Technology, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo 125-8585, Japan. bb_is_my_life_tr@yahoo.co.jp" |
| DOI: | 10.3390/molecules20022349 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Combinations of TiO2 photocatalysts and various adsorbents have been widely studied for the adsorption and photocatalytic decomposition of gaseous pollutants such as volatile organic compounds (VOCs). Herein, a TiO2-zeolite-porous glass composite was prepared using melt-quenching and partial sintering, hydrothermal treatment, and drop coating for preparation of the porous glass support and X-zeolite and their combination with TiO2, respectively. The obtained composite comprised anatase phase TiO2, X-zeolite, and the porous glass support, which were combined at the micro to nanometer scales. The composite had a relatively high specific surface area of approximately 25 m2/g and exhibited a good adsorption capacity for 2-propanol. These data indicated that utilization of this particular phase-separated glass as the support was appropriate for the formation of the bulk photocatalyst-adsorbent composite. Importantly, the photocatalytic decomposition of adsorbed 2-propanol proceeded under UV light irradiation. The 2-propanol was oxidized to acetone and then trapped by the X-zeolite rather than being released to the atmosphere. Consequently, it was demonstrated that the micrometer-scaled combination of TiO2 and zeolite in the bulk form is very useful for achieving both the removal of gaseous organic pollutants and decreasing the emission of harmful intermediates" |
| Keywords: | 1-Propanol/chemistry Adsorption Catalysis Glass/*chemistry Photochemical Processes Porosity Surface Properties Titanium/*chemistry X-Ray Diffraction Zeolites/*chemistry; |
| Notes: | "MedlineYasumori, Atsuo Yanagida, Sayaka Sawada, Jun eng Switzerland 2015/02/04 Molecules. 2015 Jan 30; 20(2):2349-63. doi: 10.3390/molecules20022349" |
