Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 23, Pages 13092-13097Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b03509
Keywords
artificial photosynthesis; carbon dioxide fixation; heterogeneous photocatalysis; oxynitride; perovskite; supramolecular complex; Z-scheme
Funding
- JSPS
- Photon and Quantum Basic Research Coordinated Development Program (MEXT, Japan)
- CREST program (JST)
- Noguchi Institute
- Grants-in-Aid for Scientific Research [24107005] Funding Source: KAKEN
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A hybrid material consisting of CaTaO2N (a perovskite oxynitride semiconductor having a band gap of 2.5 eV) and a binuclear Ru(II) complex photocatalytically produced HCOOH via CO2 reduction with high selectivity (>99%) under visible light (lambda > 400 nm). Results of photocatalytic reactions, spectroscopic measurements, and electron microscopy observations indicated that the reaction was driven according to a two-step photoexcitation of CaTaO2N and the Ru photosensitizer unit, where Ag nanoparticles loaded On CaTaO2N with optimal distribution mediated interfacial electron transfer due to reductive quenching.
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