Development of The Third-generation Active Photocatalysts: Crystalline Shape-controlled Metal Oxide Particles
| Project/Area Number |
22245033
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic industrial materials
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| Research Institution | Hokkaido University |
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Principal Investigator |
OHTANI Bunsho 北海道大学, 触媒化学研究センター, 教授 (80176924)
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| Co-Investigator(Kenkyū-buntansha) |
AMANO Fumiaki 北海道大学, 触媒化学研究センター, 助教 (10431347)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥41,990,000 (Direct Cost: ¥32,300,000、Indirect Cost: ¥9,690,000)
Fiscal Year 2012: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2011: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
Fiscal Year 2010: ¥21,320,000 (Direct Cost: ¥16,400,000、Indirect Cost: ¥4,920,000)
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| Keywords | 光触媒 / 酸化チタン / アナタース / 十面体形状 / アスペクト比 / 光触媒活性 / 酸化チタン光触媒 / 急速加熱・急速冷却 / 十面体形状微結晶 / 赤外線電気炉 / 結晶欠陥 / 統計解析手法 |
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| Research Abstract |
Historically, semiconductor photocatalysts have been developed with the design of composition and crystalline structure (the first generation) and with that of particle size and specific surface area (the second generation). As the third-generation development of highly active photocatalysts, crystal morphology, which must be in relation with the crystal-lattice defects affecting the photocatalytic activity, is designed in this study. Here, titanium(IV) oxide (titania) particles exposing eight {101} facets and two {001} facets are prepared through gas-phase reaction of titanium(IV) chloride and oxygen, characterized mainly by X-ray diffraction measurement and examined their high photocatalytic activity in several reaction systems to clarify the effect of particle morphology on the photocatalytic activity.
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Report
(4 results)
Research Products
(45 results)
