Development of visible-light-responsive Ru-doped KTaO3 photocatalyst for overall water splitting with one-step photoexcitation and the effects of codoping with La

Development of visible-light-responsive Ru-doped KTaO3 photocatalyst for overall water splitting with one-step photoexcitation and the effects of codoping with La

Ru-doped KTaO3 prepared by a conventional solid–state reaction is found as an active photocatalyst for overall water splitting into H2 and O2 under visible light irradiation when a Rh-core/Cr2O3-shell cocatalyst is loaded. The water splitting activity is improved by codoping with a suitable amount o...

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Veröffentlicht in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2023-10, Vol.11 (41), p.22161-22166
Hauptverfasser: Iwase, Akihide, Kasahara, Miyu, Misono, Haruka
Format: Artikel
Sprache:eng
Schlagworte:
Irradiation
Light irradiation
Photocatalysts
Photoexcitation
Ruthenium
Splitting
Water splitting
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Zusammenfassung:Ru-doped KTaO3 prepared by a conventional solid–state reaction is found as an active photocatalyst for overall water splitting into H2 and O2 under visible light irradiation when a Rh-core/Cr2O3-shell cocatalyst is loaded. The water splitting activity is improved by codoping with a suitable amount of La. The optimized Ru and La-codoped KTaO3 splits water into H2 and O2 using visible light up to 540 nm with an apparent quantum yield of 0.03% at 420 nm.
ISSN:2050-7488
2050-7496
DOI:10.1039/d3ta03392a