2010 Fiscal Year Final Research Report
High activation of visible-light-activated photocatalysts by optimization of heat reduction operation
| Project/Area Number |
20760487
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Kagoshima University |
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Principal Investigator |
NAKAZATO Tsutomu Kagoshima University, 理工学研究科(工学系), 准教授 (30323330)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 反応・分離工学 / 材料加工・処理 / 光触媒 / 格子欠陥 / 環境材料 |
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| Research Abstract |
Photocatalytic activity under visible light irradiation was examined for anatase-type N-F-codoped titanium oxide photocatalysts with oxygen vacancy, which were produced either by drip thermal treatment in a fluidized bed (DTFB) or by thermal treatment in an electric furnace under reducing atmospheres. Photocatalytic activity was evaluated by methylene blue decoloration tests or gaseous acetaldehyde degradation tests. Characterization of the prepared photocatalyst samples revealed that the N-F-codoped photocatalyst prepared at 773 K by DTFB exhibited the highest BET surface area of more than 100 m^2/g, which was about three times larger than that by an electric furnace, and its photocatalytic activity was higher than any other photocatalysts prepared in this study.
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