Efficient charge separation of a Z-scheme Bi5O7-delta I/CeO2-delta heterojunction with enhanced visible light photocatalytic activity for NO removal
文献类型：期刊论文
| 作者 | Yao, Ziyi4; Nie, Junli4; Ul Hassan, Qadeer4; Li, Guian4; Liao, Jiabin3; Zhang, Weibin2; Zhu, Lujun4; Shi, Xianjin1; Rao, Fei4; Chang, Jun4 |
| 刊名 | INORGANIC CHEMISTRY FRONTIERS
 |
| 出版日期 | 2022-04-19 |
| 页码 | 13 |
| ISSN号 | 2052-1553 |
| DOI | 10.1039/d2qi00391k |
| 通讯作者 | Zhu, Lujun(zhulujun@snnu.edu.cn) ; Zhu, Gangqiang(zgq2006@snnu.edu.cn) |
| 英文摘要 | In this work, a novel Z-scheme Bi5O7-delta I/CeO2-delta heterojunction photocatalyst was prepared by combining hydrothermal synthesis and thermal treatment methods. Oxygen vacancies were in situ generated on the surface of Bi5O7-delta I and CeO2-delta nanostructures. The existence of oxygen vacancies significantly improved the light absorption of CeO2-delta and inhibited the recombination of photogenerated carriers. Based on the photocatalytic activity, the as-prepared Bi5O7-delta I/CeO2-delta photocatalyst exhibited excellent photocatalytic NO removal performance under visible light irradiation. The results of the capture experiment and electron spin resonance (ESR) spectroscopy show that super oxygen radicals (O-2(-)) and hydroxyl radicals (OH) are the main active species in the overall photocatalytic reaction process. Density functional theory (DFT) calculations and ESR results demonstrate that a Z-scheme heterojunction is formed between Bi5O7-delta I and CeO2-delta. Compared with the traditional type-II heterojunction, the Z-scheme heterojunction exhibited more efficient charge separation and robust redox capacity in the photocatalytic reaction. |
| WOS关键词 | MICROSPHERES ; MECHANISM |
| 资助项目 | National Natural Science Foundation of China[51772183] ; National Natural Science Foundation of China[52072230] ; Fundamental Research Funds for the Central Universities[2020TS028] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000790424000001 |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.ieecas.cn/handle/361006/17725]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Zhu, Lujun; Zhu, Gangqiang |
| 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.Yunnan Normal Univ, Inst Phys & Elect Informat, Kunming 650500, Yunnan, Peoples R China 3.Amer Int Grp Co Ltd, Inst Nanomat, Weinan 715100, Peoples R China 4.Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710061, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, Ziyi,Nie, Junli,Ul Hassan, Qadeer,et al. Efficient charge separation of a Z-scheme Bi5O7-delta I/CeO2-delta heterojunction with enhanced visible light photocatalytic activity for NO removal[J]. INORGANIC CHEMISTRY FRONTIERS,2022:13. |
| APA | Yao, Ziyi.,Nie, Junli.,Ul Hassan, Qadeer.,Li, Guian.,Liao, Jiabin.,...&Zhu, Gangqiang.(2022).Efficient charge separation of a Z-scheme Bi5O7-delta I/CeO2-delta heterojunction with enhanced visible light photocatalytic activity for NO removal.INORGANIC CHEMISTRY FRONTIERS,13. |
| MLA | Yao, Ziyi,et al."Efficient charge separation of a Z-scheme Bi5O7-delta I/CeO2-delta heterojunction with enhanced visible light photocatalytic activity for NO removal".INORGANIC CHEMISTRY FRONTIERS (2022):13. |
入库方式： OAI收割
来源：地球环境研究所
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