Insights into excitonic behavior in single-atom covalent organic frameworks for efficient photo-Fenton-like pollutant degradation
Zhejiang University of Technology · Ministry of Ecology and Environment · +4 more institutions
Abstract
The generation of radicals through photo-Fenton-like reactions demonstrates significant potential for remediating emerging organic contaminants (EOCs) in complex aqueous environments. However, the excitonic effect, induced by Coulomb interactions between photoexcited electrons and holes, reduces carrier utilization efficiency in these systems. In this study, we develop Cu single-atom-loaded covalent organic frameworks (CuSA/COFs) as models to modulate excitonic effects. Temperature-dependent photoluminescence and ultrafast transient absorption spectra reveal that incorporating acenaphthene units into the linker (CuSA/Ace-COF) significantly reduces exciton binding energy (Eb). This modification not only…
Citation impact
- FWCI
- 20.48
- Percentile
- 100%
- References
- 51
Authors
9Topics & keywords
- Degradation (telecommunications)
- Pollutant
- Covalent bond
- Atom (system on chip)
- Chemistry
- Photochemistry
- Environmental chemistry
- Materials science