Femtosecond transient absorption spectroscopy investigation on ultrafast electron transfer in S-scheme ZnO/CdIn2S4 photocatalyst for H2O2 production and benzylamine oxidation
Wuhan University of Technology · Hubei University of Technology · +1 more institution
Abstract
Photocatalytic hydrogen peroxide (H 2 O 2 ) production is a crucial process for clean energy conversion, involving the reduction of O 2 through two electrons. However, this process is often hampered by the sluggish water oxidation involving the photogenerated holes. To address this challenge, we have constructed a dual-functional S-scheme ZnO/CdIn 2 S 4 heterojunction systerm coupling the H 2 O 2 generation with a value-added benzylamine (BA) oxidation reaction. In this dual-functional photocatalytic system, photogenerated electrons in CdIn 2 S 4 efficiently reduce O 2 to produce H 2 O 2 , while photogenerated holes in ZnO selectively oxidize BA to N-benzylidenebenzylamine. Leveraging the advantages of the…
Citation impact
- FWCI
- 17.44
- Percentile
- 100%
- References
- 41
Authors
6Topics & keywords
- Ultrafast laser spectroscopy
- Femtosecond
- Photochemistry
- Electron transfer
- Photocatalysis
- Benzylamine
- Ultrashort pulse
- Materials science