| Oxygen vacancy-dependent photocatalytic activity of well-defined Bi2Sn2O7-x hollow nanocubes for NOx removal | |
| Lu, Yanfeng1,2; Chen, Meijuan3; Huang, Tingting1; Huang, Yu1,2; Cao, Jun-ji1,2; Li, Haiwei4; Ho, Wingkei5; Lee, Shun Cheng4 | |
| 通讯作者 | Huang, Yu(huangyu@ieecas.cn) |
| 2021-05-21 | |
| 发表期刊 | ENVIRONMENTAL SCIENCE-NANO
 |
| ISSN | 2051-8153 |
| 页码 | 7 |
| 摘要 | Intricate engineering of oxygen vacancies (OVs) to trap kinetically diffusible rarefied NO gas and to enhance the population of long-lived electrons remains a great challenge for NO removal in outdoor atmosphere. In this study, OV-engineered Bi2Sn2O7-x hollow nanocubes with distinct Sn/Bi-adjacent OVs were tightly managed and synthesized. Theoretical calculations and experimental studies revealed that not all types of OVs were beneficial for increasing the photoactivity owing to their different effects on the band structure and carrier diffusion path. Bi2Sn2O7-x with Sn-adjacent OVs could serve as adsorption sites, boosting rarefied NO enrichment and electron-hole separation. However, Bi2Sn2O7-x with Bi-adjacent OVs exhibited an opposite effect owing to increased charge recombination centers. Our findings highlight the importance of the character of OVs for efficient interface electron activation and for the removal of ambient rarefied gaseous pollutants. |
| DOI | 10.1039/d1en00260k |
| 关键词[WOS] | GENERATION ; NANOSHEETS ; EFFICIENT ; DEFECTS |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | National Key Research and Development Program of China[2016YFA0203000] ; National Key Research and Development Program of China[2017YFC0212200] ; National Science Foundation of China[52000171] ; National Science Foundation of China[51878644] ; Special Research Assistant Grant Program of Chinese Academy of Sciences |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology ; Science & Technology - Other Topics |
| 项目资助者 | National Key Research and Development Program of China ; National Science Foundation of China ; Special Research Assistant Grant Program of Chinese Academy of Sciences |
| WOS类目 | Chemistry, Multidisciplinary ; Environmental Sciences ; Nanoscience & Nanotechnology |
| WOS记录号 | WOS:000658799000001 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/16694 |
| 专题 | 粉尘与环境研究室 第四纪科学与全球变化卓越创新中心 |
| 通讯作者 | Huang, Yu |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China 2.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Inst Earth Environm, Xian 710061, Peoples R China 3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710049, Peoples R China 4.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Hong Kong, Peoples R China 5.Hong Kong Inst Educ, Dept Sci & Environm Studies, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Yanfeng,Chen, Meijuan,Huang, Tingting,et al. Oxygen vacancy-dependent photocatalytic activity of well-defined Bi2Sn2O7-x hollow nanocubes for NOx removal[J]. ENVIRONMENTAL SCIENCE-NANO,2021:7. |
| APA | Lu, Yanfeng.,Chen, Meijuan.,Huang, Tingting.,Huang, Yu.,Cao, Jun-ji.,...&Lee, Shun Cheng.(2021).Oxygen vacancy-dependent photocatalytic activity of well-defined Bi2Sn2O7-x hollow nanocubes for NOx removal.ENVIRONMENTAL SCIENCE-NANO,7. |
| MLA | Lu, Yanfeng,et al."Oxygen vacancy-dependent photocatalytic activity of well-defined Bi2Sn2O7-x hollow nanocubes for NOx removal".ENVIRONMENTAL SCIENCE-NANO (2021):7. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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