Photocatalytic properties of TiO{sub 2}-P{sub 2}O{sub 5} glass ceramics
- R and D Department, Ohara Inc., Sagamihara-shi, Kanagawa 252-5286 (Japan)
Highlights: Black-Right-Pointing-Pointer Glass ceramics were prepared in the binary system P{sub 2}O{sub 5}-TiO{sub 2}. Black-Right-Pointing-Pointer Main crystalline phases were anatase-type TiO{sub 2} crystals or (TiO){sub 2}P{sub 2}O{sub 7} crystals. Black-Right-Pointing-Pointer The glass ceramics containing the anatase crystals showed photocatalytic activity. -- Abstract: Binary TiO{sub 2}-P{sub 2}O{sub 5} glasses with 69 mol% and 76 mol% TiO{sub 2} were prepared and converted into glass ceramics by heat-treatments. XRD measurements show that the main crystalline phases precipitated in the glass ceramics are anatase-type TiO{sub 2} crystals or (TiO){sub 2}P{sub 2}O{sub 7} crystals, depending on the concentration of titanium constituent. Photocatalytic activities of the glass ceramics were evaluated by the decomposition of methylene blue (MB) and measuring the water contact angle. It is found that the glass ceramics containing anatase crystals exhibit both photocatalytic oxidation activity and highly photo-induced hydrophilicity under UV irradiation with intensity of 1.0 mW/cm{sup 2}.
- OSTI ID:
- 22212373
- Journal Information:
- Materials Research Bulletin, Vol. 46, Issue 12; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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