Interstitial P‐Doped CdS with Long‐Lived Photogenerated Electrons for Photocatalytic Water Splitting without Sacrificial Agents
Technical Institute of Physics and Chemistry · University of Chinese Academy of Sciences · +4 more institutions
Abstract
Photocatalytic hydrogen evolution from pure water is successfully realized by using interstitial P-doped CdS with rich S vacancies (CdS-P) as the photocatalyst in the absence of any electron sacrificial agents. Through interstitial P doping, the impurity level of S vacancies is located near the Fermi level and becomes an effective electron trap level in CdS-P, which can change dynamic properties of photogenerated electrons and thus prolong their lifetimes. The long-lived photogenerated electrons are able to reach the surface active sites to initiate an efficient photocatalytic redox reaction. Moreover, the photocatalytic activity of CdS-P can be further improved through the loading of CoP as a cocatalyst.
Citation impact
- FWCI
- 14.10
- Percentile
- 100%
- References
- 40
Authors
10- RSRui Shi
Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, University of Hong Kong
- HYHui‐Fang Ye
Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, University of Hong Kong
- FLFei Liang
Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences
- ZWZhuan Wang
FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic, Institute of Physics, University of Chinese Academy of Sciences
- KLKai Li
State Key Laboratory of Synthetic Chemistry, University of Hong Kong
Topics & keywords
- Photocatalysis
- Materials science
- Doping
- Electron
- Water splitting
- Redox
- Photochemistry
- Fermi level
- Clean water and sanitation