| Title | Photochemistry of Ethanol on Rutile TiO2(110): Breaking Two Bonds with One Hole |
| Author | |
| Corresponding Author | Guo, Qing |
| Publication Years | 2023
|
| DOI | |
| Source Title | |
| ISSN | 1932-7447
|
| EISSN | 1932-7455
|
| Abstract | Understanding the mechanism of ethanol (EtOH) photochemistry is of significance for photocatalytic H2 production. Here, we reported a systematical study of EtOH photochemistry on rutile (R)-TiO2(110), aiming to illustrate how photogenerated holes and electrons are involved in bond breaking. We found that the yields of aldehyde from the ethoxy group and EtOH photooxidation on R- TiO2(110) are proportional to the square root of the photon flux, demonstrating that one hole can induce molecular EtOH decomposition to aldehyde. The initial O-H bond cleavage occurs mainly via a proton-coupled hole transfer process, and the C-H bond cleavage is a hole-mediated process, leaving two electrons on the surface, in agreement with the "current doubling effect". In addition, the rate of aldehyde formation from the ethoxy group is about 3 orders of magnitude faster than that from EtOH, suggesting that the O-H bond cleavage determines the rate of EtOH photochemistry. The results may considerably broaden our understanding of TiO2 photocatalysis. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | National Key R&D Program of China[2018YFE0203002]
; National Natural Science Foundation of China (NSFC Center for Chemical Dynamics)[22173041]
; Strategic Priority Research Program of Chinese Academy of Sciences[XDB17000000]
; Shenzhen Science and Technology Innovation Committee["JCYJ2019080914021660","ZDSYS20200421111001787"]
; Guangdong Innovative & Entrepreneurial Research Team Program["2019ZT08L455","2019JC01X091"]
; International Partnership Program of Chinese Academy of Science[121421KYSB20170012]
; Innovation Program for Quantum Science and Technology[2021ZD0303304]
|
| WOS Research Area | Chemistry
; Science & Technology - Other Topics
; Materials Science
|
| WOS Subject | Chemistry, Physical
; Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
|
| WOS Accession No | WOS:000922886700001
|
| Publisher | |
| Data Source | Web of Science
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/475087 |
| Department | Department of Chemistry |
| Affiliation | 1.Southern Univ Sci & Technol, Shenzhen Key Lab Energy Chem, Shenzhen 518055, Peoples R China 2.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Liaoning, Peoples R China 4.Hefei Natl Lab, Hefei 230088, Peoples R China |
| First Author Affilication | Southern University of Science and Technology; Department of Chemistry |
| Corresponding Author Affilication | Southern University of Science and Technology; Department of Chemistry |
| First Author's First Affilication | Southern University of Science and Technology |
| Recommended Citation GB/T 7714 |
Lai, Yuemiao,Zeng, Yi,Chen, Xiao,et al. Photochemistry of Ethanol on Rutile TiO2(110): Breaking Two Bonds with One Hole[J]. Journal of Physical Chemistry C,2023.
|
| APA |
Lai, Yuemiao,Zeng, Yi,Chen, Xiao,Wang, Tao,Yang, Xueming,&Guo, Qing.(2023).Photochemistry of Ethanol on Rutile TiO2(110): Breaking Two Bonds with One Hole.Journal of Physical Chemistry C.
|
| MLA |
Lai, Yuemiao,et al."Photochemistry of Ethanol on Rutile TiO2(110): Breaking Two Bonds with One Hole".Journal of Physical Chemistry C (2023).
|
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment