| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2020: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2017: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| Outline of Final Research Achievements |
We have investigated water-splitting photocatalysts under entire range of visible light on the basis of a material design and a mechanistic approach. Then, we discovered all-solid-state hetero-junction photocatalysts, by connecting zinc rhodium oxide (ZnRh2O4) and bismuth vanadium oxide (Bi4V2O11) as hydrogen (H2)- and oxygen (O2)-evolution photocatalysts, respectively, with silver (Ag) or gold (Au). These photocatalysts achieved the overall pure-water splitting under red light, following a conventional well-known Z-scheme mechanism, but the present photocatalysts did not require any chemicals as a redox mediator. In addition, we tried to selectively deposit a H2-evolution cocatalyt onto ZnRh2O4 and a O2-evolution cocatalyt onto Bi4V2O11 towards the enhancement of water splitting activity.
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