Mg-doped SrTiO3 photocatalyst with Ag–Co cocatalyst for enhanced selective conversion of CO2 to CO using H2O as the electron donor

Nakamoto, Takechi; Iguchi, Shoji; Naniwa, Shimpei; Tanaka, Tsunehiro; Teramura, Kentaro

doi:10.1039/d3cy00576c

Catal. Sci. Technol.

2023

DOI: 10.1039/d3cy00576c

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Mg-doped SrTiO₃ photocatalyst with Ag–Co cocatalyst for enhanced selective conversion of CO₂ to CO using H₂O as the electron donor

Takechi Nakamoto¹,

Shoji Iguchi²,

Shimpei Naniwa³

et al.

Abstract: Photocatalytic conversion of CO2 by H2O is a promising method for solving energy and environmental problems. In this context, efficient photocatalysts that facilitate the selective conversion of CO2 to the...

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2024

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Cited by 3 publications

References 52 publications

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Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Nakamoto,

Iguchi,

Naniwa

et al. 2024

ChemCatChem

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The photocatalytic conversion of CO2 using H2O over heterogeneous photocatalysts has attracted worldwide attention because it enables direct solar‐to‐chemical energy conversion. However, further development of this technology requires solutions to overcome the low formation rates of CO2 reduction products and their insufficient selectivity, mainly caused by the rapid charge recombination of photogenerated electron/hole pairs, competition for thermodynamically preferential H2 evolution from H2O, and the relatively low concentration of CO2 on the surface of the photocatalysts. Surface modification of heterogeneous photocatalysts is crucial for improving their formation rates and selectivity. This review article introduces four strategies for designing photocatalyst surfaces for the photocatalytic conversion of CO2 by H2O: (I) loading of an Ag cocatalyst, (II) utilisation of cocatalysts for H2O oxidation, (III) suppression of undesired H2 evolution, and (IV) loading of basic materials for CO2 adsorption. The strategies introduced in this review successfully enhanced the formation rates of the products and/or their selectivity in the heterogeneous photocatalytic conversion of CO2 by H2O.

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Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Nakamoto,

Iguchi,

Naniwa

et al. 2024

ChemCatChem

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Ag co-catalyst prepared by ultrasonic reduction method for efficient photocatalytic conversion of CO₂ with H₂O using ZnTa₂O₆ photocatalyst

Kawata,

Iguchi,

Naniwa

et al. 2024

Catal. Sci. Technol.

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Photocatalytic conversion of CO2 using K2YTa5O15 photocatalyst in the presence of silver-iron dual cocatalyst

Iguchi,

Ikeda,

Naniwa

et al. 2024

Bulletin of the Chemical Society of Japan

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Photocatalytic conversion of CO2 is a promising technique for realising a carbon neutral society based on the use of renewable energy sources. The application of dual cocatalysts consisting of silver-cobalt or silver-iron significantly improved the photocatalytic activity of an Al−SrTiO3 photocatalyst for the conversion of CO2 to CO in water. In this work, the photocatalytic conversion of CO2 using Ga2O3 and K2YTa5O15 photocatalysts was successfully performed in the presence of a silver-iron dual cocatalyst loaded via a photodeposition method, and both the formation rate of CO and selectivity toward CO production were simultaneously increased by the addition of Fe species. The promotion of the H2O oxidation reaction through Fe addition ensures the superior activity for the CO2 conversion into CO.

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Mg-doped SrTiO₃ photocatalyst with Ag–Co cocatalyst for enhanced selective conversion of CO₂ to CO using H₂O as the electron donor

Abstract: Photocatalytic conversion of CO2 by H2O is a promising method for solving energy and environmental problems. In this context, efficient photocatalysts that facilitate the selective conversion of CO2 to the...

Cited by 3 publications

References 52 publications

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Ag co-catalyst prepared by ultrasonic reduction method for efficient photocatalytic conversion of CO₂ with H₂O using ZnTa₂O₆ photocatalyst

Photocatalytic conversion of CO2 using K2YTa5O15 photocatalyst in the presence of silver-iron dual cocatalyst

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Mg-doped SrTiO3 photocatalyst with Ag–Co cocatalyst for enhanced selective conversion of CO2 to CO using H2O as the electron donor

Abstract: Photocatalytic conversion of CO2 by H2O is a promising method for solving energy and environmental problems. In this context, efficient photocatalysts that facilitate the selective conversion of CO2 to the...

Cited by 3 publications

References 52 publications

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO2 by H2O as the Electron Donor

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO2 by H2O as the Electron Donor

Ag co-catalyst prepared by ultrasonic reduction method for efficient photocatalytic conversion of CO2 with H2O using ZnTa2O6 photocatalyst

Photocatalytic conversion of CO2 using K2YTa5O15 photocatalyst in the presence of silver-iron dual cocatalyst

Contact Info

Product

Resources

About

Mg-doped SrTiO₃ photocatalyst with Ag–Co cocatalyst for enhanced selective conversion of CO₂ to CO using H₂O as the electron donor

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Surface Modifications of Heterogeneous Photocatalysts for Photocatalytic Conversion of CO₂ by H₂O as the Electron Donor

Ag co-catalyst prepared by ultrasonic reduction method for efficient photocatalytic conversion of CO₂ with H₂O using ZnTa₂O₆ photocatalyst