2013 Fiscal Year Final Research Report
Photolysis of water by p/n junction type iron complex oxides
| Project/Area Number |
23245036
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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 |
Environmental chemistry
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| Research Institution | Kumamoto University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KOINUMA Michio 熊本大学, 大学院自然科学研究科, 講師 (70284742)
TANIGUCHI Takaaki 熊本大学, 大学院自然科学研究科, 助教 (50583415)
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| Research Collaborator |
TATEISHI Hikaru 熊本大学, 大学院自然科学研究科, 学生
HATAKEYAMA Kazuto 熊本大学, 大学院自然科学研究科, 学生
FUNATSU Asami 熊本大学, 大学院自然科学研究科, 学生
ASRORI Mohamad Zainul 熊本大学, 大学院自然科学研究科, 学生
KAMEI Yuki 熊本大学, 大学院自然科学研究科, 学生
OGATA Chikako 熊本大学, 大学院自然科学研究科, 学生
ECHIKAWA Makoto 熊本大学, 大学院自然科学研究科, 学生
OKAZAWA Yuki 熊本大学, 大学院自然科学研究科, 学生
WATANABE Yusuke 熊本大学, 大学院自然科学研究科, 学生
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| Project Period (FY) |
2011-05-31 – 2014-03-31
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| Keywords | 高機能触媒 / 光触媒 / 鉄複合酸化物 / 可視光応答 / 水光分解 / ｐ／ｎ接合 |
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| Research Abstract |
The aim of this research is to develop new iron complex oxide photocatalysts consisting of p/n junction in order to produce hydrogen from water. In the initial stage of this research, we studied about synthesis of p/n junction of the iron oxide, but the synthesis was very difficult. Therefore, we tried to prepare nano-hybrid photocatalyst materials containing iron oxide. We selected various layered and nanosheet oxides such as ceria, zinc oxide, graphene oxide as the mixture to iron oxide. Theses oxides had very interesting properties such as luminescence with high quantum efficiency, ferromagnetism at the organic compound/ZnO nanosheets, and high oxygen reduction catalytic activity of iron compounds. These mixtures containing iron oxides were tested as the photocatalyst for water photolysis. We have gotten some hints to prepare good catalyst, although the above hybrid catalysts did not show high activity.
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