Oxygen Vacancy Generation and Stabilization in CeO 2– x by Cu Introduction with Improved CO 2 Photocatalytic Reduction Activity
East China University of Science and Technology · Chinese Academy of Sciences · +3 more institutions
Abstract
Introducing O vacancies into the lattice of a semiconductor photocatalyst can alter its intrinsic electronic properties and band gap, thus enhancing the visible light absorption, promoting the separation/transfer of photogenerated charge carriers, and resultantly elevating the photocatalytic activity of oxide semiconductors. Moreover, O vacancies can help adsorb and activate CO2 on photocatalyst surfaces, which, however, are prone to being filled by O atoms during the photoreduction reaction. In this work, Cu was introduced to increase the O vacancy concentration in CeO2–x and promote the photocatalytic activity of CeO2–x. The sample Cu/CeO2–x-0.1 showed the highest photocatalytic activity with a CO yield of…
Citation impact
- FWCI
- 21.56
- Percentile
- 100%
- References
- 39
Authors
9- MWMin Wang
East China University of Science and Technology, Chinese Academy of Sciences, Shanghai Institute of Ceramics, University of Chinese Academy of Sciences
- MSMeng Shen
Chinese Academy of Sciences, Shanghai Institute of Ceramics, University of Chinese Academy of Sciences
- XJXixiong Jin
Chinese Academy of Sciences, Shanghai Institute of Ceramics, University of Chinese Academy of Sciences
- JTJianjian Tian
Chinese Academy of Sciences, Shanghai Institute of Ceramics, University of Chinese Academy of Sciences
- MLMengli Li
Jiaxing University
Topics & keywords
- Photocatalysis
- X-ray photoelectron spectroscopy
- Materials science
- Raman spectroscopy
- Vacancy defect
- Photochemistry
- Oxygen
- Semiconductor