Synthesis of BaTaO2N oxynitride from Ba-rich oxide precursor for construction of visible-light-driven Z-scheme overall water splitting
文献类型：期刊论文
| 作者 | Dong, Beibei1,2; Qi, Yu1,2; Cui, Junyan1,3; Liu, Baodan4; Xiong, Fengqiang1; Jiang, Xin; Li, Zheng1,2; Xiao, Yejun1,2; Zhang, Fuxiang1; Li, Can1 |
| 刊名 | DALTON TRANSACTIONS
 |
| 出版日期 | 2017-08-28 |
| 卷号 | 46期号:32页码:10707-10713 |
| ISSN号 | 1477-9226 |
| DOI | 10.1039/c7dt00854f |
| 文献子类 | Article |
| 英文摘要 | Barium tantalum oxynitride (BaTaO2N) with an absorption edge of ca. 660 nm is one of the most promising photocatalysts for solar water splitting, and is usually synthesized by nitriding a mixture of Ba and Tacontaining compounds with a Ba/Ta molar ratio of unity under ammonia flow at high temperature, usually causing a high density of defect sites. Herein, we introduce a novel synthesis method for BaTaO2N (BTON) by employing Ba-rich LiBa4Ta3O12, prepared by a flux method, as a precursor of nitridation. As a comparison, BaTaOx was prepared by conventional solid state reaction and used as the precursor. The as-nitrided samples were correspondingly denoted as BTON-Flux and BTON-SSR. It was found that well-crystallized BTON oxynitride can be similarly obtained by both methods, but the BTON-Flux sample exhibits significantly decreased defect density and enhanced surface area relative to the BTON-SSR sample. As a result of their structural differences, the photocatalytic water splitting performance of the BTON-Flux sample, regardless of the H-2-evolving half reaction in the presence of methanol or Z-scheme overall water splitting, is much better than that of BTON-SSR. This study may open up a novel strategy for preparing oxynitride photocatalyst with decreased defect density for the promotion of solar water splitting. |
| WOS关键词 | HYDROGEN EVOLUTION ; SOLID-SOLUTION ; WIDE-RANGE ; PHOTOCATALYST ; OXIDATION ; SEMICONDUCTORS ; FABRICATION ; SR ; CA |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000408696500026 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/168314]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Zhang, Fuxiang; Li, Can |
| 作者单位 | 1.Chinese Acad Sci, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, iChEM,Dalian Inst Chem Phys, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Jilin Univ, Coll Chem, Key Lab Surface & Interface Chem Jilin Prov, Changchun 130021, Jilin, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Beibei,Qi, Yu,Cui, Junyan,et al. Synthesis of BaTaO2N oxynitride from Ba-rich oxide precursor for construction of visible-light-driven Z-scheme overall water splitting[J]. DALTON TRANSACTIONS,2017,46(32):10707-10713. |
| APA | Dong, Beibei.,Qi, Yu.,Cui, Junyan.,Liu, Baodan.,Xiong, Fengqiang.,...&Li, Can.(2017).Synthesis of BaTaO2N oxynitride from Ba-rich oxide precursor for construction of visible-light-driven Z-scheme overall water splitting.DALTON TRANSACTIONS,46(32),10707-10713. |
| MLA | Dong, Beibei,et al."Synthesis of BaTaO2N oxynitride from Ba-rich oxide precursor for construction of visible-light-driven Z-scheme overall water splitting".DALTON TRANSACTIONS 46.32(2017):10707-10713. |
入库方式： OAI收割
来源：大连化学物理研究所
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