Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting
文献类型：期刊论文
| 作者 | Wang, Zheng; Luo, Ying ; Hisatomi, Takashi; Vequizo, Junie Jhon M.; Suzuki, Sayaka; Chen, Shanshan; Nakabayashi, Mamiko; Lin, Lihua; Pan, Zhenhua; Kariya, Nobuko
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| 刊名 | NATURE COMMUNICATIONS
 |
| 出版日期 | 2021 |
| 卷号 | 12期号:1页码:1005 |
| 英文摘要 | Oxynitride photocatalysts hold promise for renewable solar hydrogen production via water splitting owing to their intense visible light absorption. Cocatalyst loading is essential for activation of such oxynitride photocatalysts. However, cocatalyst nanoparticles form aggregates and exhibit weak interaction with photocatalysts, which prevents eliciting their intrinsic photocatalytic performance. Here, we demonstrate efficient utilization of photoexcited electrons in a single-crystalline particulate BaTaO2N photocatalyst prepared with the assistance of RbCl flux for H-2 evolution reactions via sequential decoration of Pt cocatalyst by impregnation-reduction followed by site-selective photodeposition. The Pt-loaded BaTaO2N photocatalyst evolves H-2 over 100 times more efficiently than before, with an apparent quantum yield of 6.8% at the wavelength of 420nm, from a methanol aqueous solution, and a solar-to-hydrogen energy conversion efficiency of 0.24% in Z-scheme water splitting. Enabling uniform dispersion and intimate contact of cocatalyst nanoparticles on single-crystalline narrow-bandgap particulate photocatalysts is a key to efficient solar-to-chemical energy conversion. Activation of narrow-bandgap photocatalysts holds key to applicable solar-to-hydrogen energy conversion. Here, the authors demonstrate effective sequential cocatalyst decoration for such narrow-bandgap photocatalysts to realise highly-efficient hydrogen evolution and Z-scheme water splitting. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/46953]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Univ Tokyo, Off Univ Prof, Tokyo, Japan 2.Shinshu Univ, Res Initiat Supra Mat, Interdisciplinary Cluster Cutting Edge Res, Nagano, Nagano, Japan 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing, Peoples R China 4.Shinshu Univ, Grad Sch Med Sci & Technol, Dept Sci & Technol, Nagano, Japan 5.Shinshu Univ, Fac Engn, Dept Mat Chem, Nagano, Japan 6.Univ Tokyo, Inst Engn Innovat, Tokyo, Japan 7.Mitsubishi Chem Corp, Sci & Innovat Ctr, Yokohama, Kanagawa, Japan 8.Toyota Technol Inst, Grad Sch Engn, Nagoya, Aichi, Japan |
| 推荐引用方式 GB/T 7714 | Wang, Zheng,Luo, Ying,Hisatomi, Takashi,et al. Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting[J]. NATURE COMMUNICATIONS,2021,12(1):1005. |
| APA | Wang, Zheng.,Luo, Ying.,Hisatomi, Takashi.,Vequizo, Junie Jhon M..,Suzuki, Sayaka.,...&Domen, Kazunari.(2021).Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting.NATURE COMMUNICATIONS,12(1),1005. |
| MLA | Wang, Zheng,et al."Sequential cocatalyst decoration on BaTaO2N towards highly-active Z-scheme water splitting".NATURE COMMUNICATIONS 12.1(2021):1005. |
入库方式： OAI收割
来源：生态环境研究中心
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