| Project/Area Number |
21K20485
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Multi-year Fund |
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| Review Section |
0401:Materials engineering, chemical engineering, and related fields
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| Research Institution | Nagoya University |
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Principal Investigator |
Wang Qian 名古屋大学, 工学研究科, 准教授 (20914162)
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| Project Period (FY) |
2021-08-30 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | Photocatalysis / Carbon dioxide fixing / Biocatalyst |
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| Outline of Research at the Start |
This proposal seeks to develop a strategy for artificial photosynthesis to construct a bio-abiotic hybrid system composed of nonphotosynthetic, CO2-fixing bacteria as the catalyst for CO2 reduction reaction and semiconductors as light absorbers.
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| Outline of Final Research Achievements |
This project proposes a strategy for artificial photosynthesis to construct bio-abiotic hybrid systems composed of nonphotosynthetic, CO2-fixing bacteria as the catalyst for CO2 reduction and semiconductors as light absorbers because CO2-fixing bacteria are favored to facilitate the multistep process of CO2 fixation selectively and efficiently. Such systems can harness both the efficient light-harvesting capabilities of semiconductors and the strong catalytic power of living biocatalysts. The proof-of-concept bio-abiotic hybrid systems that interface non-photosynthetic bacteria, such as Sporomusa ovata and Clostridium ljungdahlii, with the photocatalyst sheet consisting of La- and Rh-codoped SrTiO3 and BiVO4 semiconductor powders fixed into a three-dimensional inverse opal-indium tin oxide layer successfully produced acetate and ethanol from CO2 and water.
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| Academic Significance and Societal Importance of the Research Achievements |
This project developed novel photocatalytic systems composed of microorganisms and semiconductors to produce multicarbon products from CO2 and water. This would advance the field, where most photocatalytic CO2 reduction systems required hole scavengers and obtained mono-carbon compounds only.
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