Colloidal Synthesis of Ultrathin Monoclinic BiVO4 Nanosheets for Z-Scheme Overall Water Splitting under Visible Light
文献类型：期刊论文
| 作者 | Yang, B; Dong, CW; Lu, SY; Yao, SY; Ge, R ; Wang, ZD; Wang, Z; An, PF; Liu, Y; Zhang, H
|
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2018 |
| 卷号 | 8期号:9页码:8649-8658 |
| 关键词 | BiVO4 2D nanosheets photocatalysis Z-scheme water splitting |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/acscatal.8b01645 |
| 文献子类 | Article |
| 英文摘要 | Recently, ultrathin 2D photocatalysts have attracted people's attention due to their performances in the area of solar energy conversion. However, the synthesis of ultrathin 2D photocatalysts with a nonlayered crystal structure is still full of challenges. Herein, ultrathin 2D BiVO4 nanosheets (NSs) with monoclinic crystal structure are synthesized through a convenient colloidal two-phase method. The as-prepared BiVO4 NSs possess a thickness of less than 3 nm but a diameter larger than 1.2 mu m. Furthermore, the presence of HNO3 facilitates the growth of BiVO4 NSs with nearly naked surfaces, largely exposed {010} planes, and widely distributed oxygen vacancies (V-O) inside the crystalline structure, which are of great benefit to their photocatalytic activity under visible light irradiation. As a result, our ultrathin 2D BiVO4 NSs exhibit an impressive photocatalytic performance for water oxidation. The O-2 evolution rate is 107.4 mu mol h(-1), and the apparent quantum yield (AQY) is as high as 26.1% (420 nm). Furthermore, by employing our ultrathin 2D BiVO4 NSs as the O-2-evolving photocatalyst, Ru-SrTiO3:Rh and Fe3+/Fe2+ as the H-2-evolving photocatalyst, and the redox mediator, respectively, a Z-scheme overall water splitting system is successfully constructed. Under visible light irradiation, our Z-scheme photocatalytic system presents high H-2 and O-2 evolution rates (16.7 and 8.0 mu mol h(-1)) with an AQY of 1.88% (420 nm) and good photocatalytic stability. |
| WOS关键词 | BISMUTH VANADATE ; OXYGEN EVOLUTION ; 2-DIMENSIONAL NANOMATERIALS ; EFFICIENT ; PHOTOCATALYST ; OXIDATION ; NANOCRYSTALS ; OXYCHLORIDE ; ACTIVATION ; LAYERS |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000444364800096 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/286327]  |
| 专题 | 高能物理研究所_多学科研究中心 高能物理研究所_加速器中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yang, B,Dong, CW,Lu, SY,et al. Colloidal Synthesis of Ultrathin Monoclinic BiVO4 Nanosheets for Z-Scheme Overall Water Splitting under Visible Light[J]. ACS CATALYSIS,2018,8(9):8649-8658. |
| APA | Yang, B.,Dong, CW.,Lu, SY.,Yao, SY.,Ge, R.,...&安鹏飞.(2018).Colloidal Synthesis of Ultrathin Monoclinic BiVO4 Nanosheets for Z-Scheme Overall Water Splitting under Visible Light.ACS CATALYSIS,8(9),8649-8658. |
| MLA | Yang, B,et al."Colloidal Synthesis of Ultrathin Monoclinic BiVO4 Nanosheets for Z-Scheme Overall Water Splitting under Visible Light".ACS CATALYSIS 8.9(2018):8649-8658. |
入库方式： OAI收割
来源：高能物理研究所
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