| Creation of robust oxygen vacancies in 2D ultrathin BiOBr nanosheets by irradiation through photocatalytic memory effect for enhanced CO2 reduction | |
| Lu, Lizhen1; Zhang, Haoyu1; Sun, Zhe2; Wang, Jinghui3; Wang, Haolin1; Xue, Jinbo2; Shen, Qianqian2; Li, Qi1,4 | |
| Corresponding Author | Li, Qi(qiliuiuc@swjtu.edu.cn) |
| 2023-12-01 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 477Pages:13 |
| Abstract | An interesting photocatalytic memory effect was found in 2D ultrathin BiOBr nanosheets, which endowed them the capability to trap photogenerated electrons on Bi3+ and Br- in this material system for an extended period of time and resulted in the creation of stable oxygen vacancies (Ov) by just visible light irradiation due to the charge balance requirement. Thus, a broader visible light absorption, more negative conduction band minimum, stronger piezoelectric response, better charge carrier separation and transfer, and enhanced CO2 adsorption and activation were occurred in these BiOBr nanosheets with prior visible light irradiation, all of which were beneficial for their enhanced CO2 reduction performances in photocatalysis, piezocatalysis, and photo-piezocatalysis, respectively, than their counterparts without it. This work demonstrated a novel approach to create oxygen vacancies by light irradiation through the photocatalytic memory effect, which could be readily applied to similar photocatalyst systems to boost their performances and generate novel functionalities. |
| Keyword | BiOBr nanosheets Photocatalytic memory effect Oxygen vacancy CO2 reduction Photopiezocatalysis |
| Funding Organization | National Natural Science Founda-tion of China ; Fundamental Research Funds for the Central Universities ; Sichuan Science and Technology Program |
| DOI | 10.1016/j.cej.2023.146892 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Founda-tion of China[52272125] ; Fundamental Research Funds for the Central Universities[YX1199912371401-009] ; Sichuan Science and Technology Program[2020YJ0259] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| WOS ID | WOS:001105484400001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/177469 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Qi |
| Affiliation | 1.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Minist Educ, Chengdu 610031, Peoples R China 2.Taiyuan Univ Technol, Coll Mat Sci & Engn, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.111 Sect 1,Northern Second Ring Rd, Chengdu 610031, Sichuan, Peoples R China |
| Recommended Citation GB/T 7714 | Lu, Lizhen,Zhang, Haoyu,Sun, Zhe,et al. Creation of robust oxygen vacancies in 2D ultrathin BiOBr nanosheets by irradiation through photocatalytic memory effect for enhanced CO2 reduction[J]. CHEMICAL ENGINEERING JOURNAL,2023,477:13. |
| APA | Lu, Lizhen.,Zhang, Haoyu.,Sun, Zhe.,Wang, Jinghui.,Wang, Haolin.,...&Li, Qi.(2023).Creation of robust oxygen vacancies in 2D ultrathin BiOBr nanosheets by irradiation through photocatalytic memory effect for enhanced CO2 reduction.CHEMICAL ENGINEERING JOURNAL,477,13. |
| MLA | Lu, Lizhen,et al."Creation of robust oxygen vacancies in 2D ultrathin BiOBr nanosheets by irradiation through photocatalytic memory effect for enhanced CO2 reduction".CHEMICAL ENGINEERING JOURNAL 477(2023):13. |
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