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

被引：47
|
作者：
Luo, Ying [1 ]
Suzuki, Sayaka [2 ]
Wang, Zheng [3 ]
Yubuta, Kunio [4 ]
Vequizo, Junie Jhon M. [5 ]
Yamakata, Akira [5 ]
Shiiba, Hiromasa [2 ]
Hisatomi, Takashi [3 ]
Domen, Kazunari [3 ,6 ]
Teshima, Katsuya [2 ,3 ]
机构：
[1] Shinshu Univ, Grad Sch Med Sci & Technol, Dept Sci & Technol, 4-17-1 Wakasato, Nagano 3808553, Japan
[2] Shinshu Univ, Fac Engn, Dept Chem Mat, 4-17-1 Wakasato, Nagano 3808553, Japan
[3] Shinshu Univ, Res Initiat Supra Mat, 4-17-1 Wakasato, Nagano 3808553, Japan
[4] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[5] Toyota Technol Inst, Grad Sch Engn, Tempa Ku, 2-12-1 Hisakata, Nagoya, Aichi 4688511, Japan
[6] Univ Tokyo, Sch Engn, Dept Chem Syst Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan
来源：
ACS APPLIED MATERIALS & INTERFACES | 2019年 / 11卷 / 25期
关键词：
charge separation; anisotropic facet; flux method; (oxy)nitride photocatalyst; photocatalytic activity; PHOTOCATALYTIC ACTIVITY; SINGLE-CRYSTALLINE; COEXPOSED; 001; TIO2; BEHAVIOR; PHOTOANODE; DEPOSITION; OXYNITRIDE; CARRIERS;
D O I：
10.1021/acsami.9b03747
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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 H-2 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.
引用
收藏
页码：22264 / 22271
页数：8
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