Construction of Spatial Charge Separation Facets on BaTaO2N Crystals by Flux Growth Approach for Visible-Light-Driven H2 Production

Low charge separation efficiencies are regarded as obstacles that limit the improvement in the photocatalytic performance of BaTaO2N. In this study, we demonstrated that the anisotropic facets ({100} and {110} facets) of BaTaO2N for efficient spatial charge separation were successfully constructed u...

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Veröffentlicht in:ACS applied materials & interfaces 2019-06, Vol.11 (25), p.22264-22271
Hauptverfasser: Luo, Ying, Suzuki, Sayaka, Wang, Zheng, Yubuta, Kunio, Vequizo, Junie Jhon M, Yamakata, Akira, Shiiba, Hiromasa, Hisatomi, Takashi, Domen, Kazunari, Teshima, Katsuya
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container_issue 25
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container_title ACS applied materials & interfaces
container_volume 11
creator Luo, Ying
Suzuki, Sayaka
Wang, Zheng
Yubuta, Kunio
Vequizo, Junie Jhon M
Yamakata, Akira
Shiiba, Hiromasa
Hisatomi, Takashi
Domen, Kazunari
Teshima, Katsuya
description Low charge separation efficiencies are regarded as obstacles that limit the improvement in the photocatalytic performance of BaTaO2N. In this study, we demonstrated that the anisotropic facets ({100} and {110} facets) of BaTaO2N for efficient spatial charge separation were successfully constructed using the one-pot flux-assisted nitridation approach. As a result, the photocatalytic activity for H2 production on BaTaO2N with coexposed {100} and {110} facets was nearly 10-fold over that of BaTaO2N with only {100} facets and that of the conventional irregularly shaped sample. This finding provides an innovative approach to the development of efficient (oxy)­nitride photocatalysts for solar energy conversion.
doi_str_mv 10.1021/acsami.9b03747
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title Construction of Spatial Charge Separation Facets on BaTaO2N Crystals by Flux Growth Approach for Visible-Light-Driven H2 Production
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