Unique S-scheme heterojunctions in self-assembled TiO2/CsPbBr3 hybrids for CO2 photoreduction
Wuhan University of Technology · Ji Hua Laboratory · +2 more institutions
Abstract
Abstract Exploring photocatalysts to promote CO 2 photoreduction into solar fuels is of great significance. We develop TiO 2 /perovskite (CsPbBr 3 ) S-scheme heterojunctions synthesized by a facile electrostatic-driven self-assembling approach. Density functional theory calculation combined with experimental studies proves the electron transfer from CsPbBr 3 quantum dots (QDs) to TiO 2 , resulting in the construction of internal electric field (IEF) directing from CsPbBr 3 to TiO 2 upon hybridization. The IEF drives the photoexcited electrons in TiO 2 to CsPbBr 3 upon light irradiation as revealed by in-situ X-ray photoelectron spectroscopy analysis, suggesting the formation of an S-scheme heterojunction in…
Citation impact
- FWCI
- 44.25
- Percentile
- 100%
- References
- 45
Authors
6Topics & keywords
- Heterojunction
- Perovskite (structure)
- X-ray photoelectron spectroscopy
- Materials science
- Photocatalysis
- Electron transfer
- Quantum dot
- Electron
- Affordable and clean energy
Funding
- NNNational Natural Science Foundation of ChinaAwards: 51932007, 21573170, U1705251 and 51961135303, U1705251, 51932007, 21573170, 2018YFB1502001, 51961135303, 51902121
- CPChina Postdoctoral Science FoundationAwards: U1705251, 2018YFB1502001, 2019M660189, 51932007, 51961135303
- WUWuhan University
- WUWuhan University of TechnologyAward: 2018-KF-17
- SKState Key Laboratory of Advanced Technology for Materials Synthesis and Processing
- ARAustralian Research Council
- NPNational Postdoctoral Program for Innovative TalentsAward: BX20190259
- NKNational Key Research and Development Program of ChinaAwards: 51932007, U1705251, 51961135303, 2018YFB1502001
- FRFundamental Research Funds for the Central UniversitiesAwards: U1705251, 2019IVA111, 2018YFB1502001, 51961135303, 51932007