Abstract
Metal oxides are an attractive material group as photocatalysts, while the number of visible‐light‐responsive metal oxide photocatalysts especially for overall water splitting is quite limited. Herein, overall water splitting under visible light irradiation over Ir and A‐codoped KTaO3 (A = Ca, Sr, Ba, La) photocatalysts is demonstrated. The Ir and A‐codoped KTaO3 works by the electron transition from impurity levels formed by Ir3+ to the conduction band formed by Ta5d orbitals. The codoping of Ca, Sr, Ba, and La contributes to the formation of fine photocatalyst particles and stabilization of doped Ir as trivalent. An Rh‐core/Cr2O3‐shell cocatalyst loaded by photodeposition is effective for overall water splitting over Ir and La‐codoped KTaO3 compared to a RhCrO3 cocatalyst loaded by impregnation and other metal‐core/Cr2O3‐shell cocatalysts. The Rh/Cr2O3‐loaded KTaO3 codoped with Ir and La is also active for solar water splitting.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
