Synergistic Effect of Sr-O Divacancy and Exposing Facets in SrTiO3 Micro/Nano Particle: Accelerating Exciton Formation and Splitting, Highly Efficient Co2+ Photooxidation
文献类型：期刊论文
| 作者 | Jia, Qibo2; Wang, Chuyu2,3; Liu, Jian2,3; Cai, Xiaojiao2; Zhong, Li2; Chen, Siming2; Li, Ting2; Yu, Gangqiang1; Wu, Li-zhu3,4; Duan, Dongping2,3 |
| 刊名 | SMALL
 |
| 出版日期 | 2022-09-05 |
| 页码 | 16 |
| ISSN号 | 1613-6810 |
| 关键词 | divacancy facets exposing photooxidation self-trapping exciton strontium titanate |
| DOI | 10.1002/smll.202202659 |
| 英文摘要 | As a typical perovskite-type crystal, polyhedral strontium titanate (SrTiO3) has shown anisotropic charge transport behavior in recent studies, however, the carrier transportation and transition of which has not been explained very clearly. This work present the existence of Sr and O divacancies in the novel rhombicuboctahedron SrTiO3 micro/nano particles (Sr1-xTiO3-x/TiO2-x) with exposing (100), (110) and (111) facets and the diameter of 300-700 nm synthesized via hydrothermal synthesis, and also summarizes the dissociation mechanism of self-trapped excitons (STEs) caused by the divacancy and facet effect. In addition, most importantly, the metastable STEs with ultra-low binding energy (E-b < 3 meV) under illumination are discovered. Combining the model of S-scheme heterojunction, a conversion mechanism of photoinduced carriers is proposed. The photocatalytic reaction of Co2+ is used as the probe reaction, and the unique Sr1-xTiO3-x/TiO2-x possesses a high photooxidation efficiency of Co2+, by which 70.3% of Co2+ is oxidized to Co3+ (CoOOH) in 5 min. This finding may provide a guideline for an optimal design of the photocatalytic materials for the recovery and extraction of metal ions based on SrTiO3. |
| WOS关键词 | RECONSTRUCTION ; OXYGEN ; STATE ; SIZE |
| 资助项目 | opening foundation of the Key Laboratory of Photochemical Conversion and Optoe-lectronic Materials, TIPC, CAS[PCOM202116] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| WOS记录号 | WOS:000849715900001 |
| 资助机构 | opening foundation of the Key Laboratory of Photochemical Conversion and Optoe-lectronic Materials, TIPC, CAS |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/54595]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Wu, Li-zhu; Duan, Dongping |
| 作者单位 | 1.Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Res Ctr Green Recycling Strateg Met Res, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelectron Mat, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Qibo,Wang, Chuyu,Liu, Jian,et al. Synergistic Effect of Sr-O Divacancy and Exposing Facets in SrTiO3 Micro/Nano Particle: Accelerating Exciton Formation and Splitting, Highly Efficient Co2+ Photooxidation[J]. SMALL,2022:16. |
| APA | Jia, Qibo.,Wang, Chuyu.,Liu, Jian.,Cai, Xiaojiao.,Zhong, Li.,...&Duan, Dongping.(2022).Synergistic Effect of Sr-O Divacancy and Exposing Facets in SrTiO3 Micro/Nano Particle: Accelerating Exciton Formation and Splitting, Highly Efficient Co2+ Photooxidation.SMALL,16. |
| MLA | Jia, Qibo,et al."Synergistic Effect of Sr-O Divacancy and Exposing Facets in SrTiO3 Micro/Nano Particle: Accelerating Exciton Formation and Splitting, Highly Efficient Co2+ Photooxidation".SMALL (2022):16. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。