Photocatalytic properties of TiO{sub 2}-P{sub 2}O{sub 5} glass ceramics

Journal Article · Thu Dec 15 04:00:00 EST 2011 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2011.08.016· OSTI ID:22212373

Fu, Jie ^[1]

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1. 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, Journal Name: Materials Research Bulletin Journal Issue: 12 Vol. 46; ISSN MRBUAC; ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
CONCENTRATION RATIO
CRYSTALS
DECOMPOSITION
GLASS
HEAT TREATMENTS
METHYLENE BLUE
OPTICAL PROPERTIES
OXIDATION
PHOTOCATALYSIS
TITANIUM
TITANIUM OXIDES
X-RAY DIFFRACTION