| Project/Area Number |
15F15050
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Research Field |
Environmental engineering and reduction of environmental burden
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| Research Institution | The University of Tokyo |
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Principal Investigator |
坂田 一郎 東京大学, 大学院工学系研究科(工学部), 教授 (90555682)
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| Co-Investigator(Kenkyū-buntansha) |
WANG YANQING 東京大学, 大学院工学系研究科(工学部), 外国人特別研究員
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| Project Period (FY) |
2015-04-24 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2016: ¥1,200,000 (Direct Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Ag3PO4 crystals / graphene / photocatalyst / visible-light-driven / graphene oxide / dispersion / stabilization / centrifugation / exfoliation |
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| Outline of Annual Research Achievements |
We report on a novel yet facile approach to the mass production of photocatalytic Ag3PO4 particles by using graphene oxide (GO) sheets as templates. GO was first stabilized with poly(diallyldimethylammonium chloride), a poly-cationic electrolyte, Ag3PO4 crystals of submicro-size and with rhombic dodecahedron and tetrahedral morphologies were then synthesized over the GO sheets by using Ag(NH3)2+ and H2PO4- as the starting materials via precipitation reactions. After a desirable UV irradiation treatment, Ag3PO4 was partially reduced to Ag0 and GO to graphene; tetrahedral crystals consisted of Ag, Ag3PO4 and graphene were obtained. The Ag/Ag3PO4/graphene combinational nanostructures are highly transparent and moreover, showing high visible-light-driven photocatalytic activities. Photodegradation studies with acridine orange (AO) as the targeted chemicals gave better results than TiO2 (P25), WO3, and the sole Ag/Ag3PO4, demonstrating the high applicability of the Ag/Ag3PO4/graphene combinational photocatalyst.
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| Research Progress Status |
28年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
28年度が最終年度であるため、記入しない。
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