Revealing Surface Charge Population on Flake-Like BiVO4 Photocatalysts by Single Particle Imaging Spectroscopies
文献类型：期刊论文
| 作者 | Mao, Jie; Gu, Zhenao; Yu, Yue; Liu, Huijuan; Qu, Jiuhui ; An, Xiaoqiang
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| 刊名 | ACS APPLIED ENERGY MATERIALS
 |
| 出版日期 | 2021-03-22 |
| 卷号 | 4期号:3页码:2543-2551 |
| 关键词 | photocatalysis charge separation Kelvin probe force microscopy single-particle microscopy BiVO4 |
| ISSN号 | 2574-0962 |
| 英文摘要 | Visually observing the charge separation between different facets is of great importance for the development of high-efficiency photocatalysts. In this work, the techniques for visual observation and material strategy for catalyst synthesis were integrated to reveal the structure-activity relationship of a single BiVO4 photocatalyst. BiVO4 crystals with different ratios of (010)/(110) facets were synthesized by a pressure-assisted hydrothermal method. Spatially resolved surface photovoltage (SPV) indicated that photoinduced holes were prone to transfer from (010) facets to (110) facets on BiVO4. Both confocal fluorescence and Kelvin probe force microscopy (KPFM) evidenced the enhanced separation of photogenerated charge carriers by increasing the ratio of exposed (010) facets in flake-BiVO4. Profitting from the strategy of facet engineering, flake-BiVO4 presented remarkably increased activity for photocatalytic O-2 production than that of truncated bipyramid-BiVO4. Our study provides a fundamental insight into the facet-dependent activity of BiVO4 single particle, which is beneficial for the rational design of faceted photocatalyst for environmental remediation and solar energy conversion. |
| WOS研究方向 | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46068]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 作者单位 | 1.China Univ Geosci, Sch Mat Sci & Technol, Beijing Key Lab Mat Utilizat Nonmetall Minerals &, Natl Lab Mineral Mat, Beijing 100083, P 2.Tsinghua Univ, Ctr Water & Ecol, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Jie,Gu, Zhenao,Yu, Yue,et al. Revealing Surface Charge Population on Flake-Like BiVO4 Photocatalysts by Single Particle Imaging Spectroscopies[J]. ACS APPLIED ENERGY MATERIALS,2021,4(3):2543-2551. |
| APA | Mao, Jie,Gu, Zhenao,Yu, Yue,Liu, Huijuan,Qu, Jiuhui,&An, Xiaoqiang.(2021).Revealing Surface Charge Population on Flake-Like BiVO4 Photocatalysts by Single Particle Imaging Spectroscopies.ACS APPLIED ENERGY MATERIALS,4(3),2543-2551. |
| MLA | Mao, Jie,et al."Revealing Surface Charge Population on Flake-Like BiVO4 Photocatalysts by Single Particle Imaging Spectroscopies".ACS APPLIED ENERGY MATERIALS 4.3(2021):2543-2551. |
入库方式： OAI收割
来源：生态环境研究中心
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