Steering charge transfer in CuInS2/BiOCl composites to enable sunlight-driven C–F bond cleavage of PFAS in water
Qingdao University · Shandong University of Science and Technology · +13 more institutions
Abstract
Abstract Per- and polyfluoroalkyl substances (PFAS) resist most remediation technologies because of their exceptionally inert carbon–fluorine bonds. Here we report a visible-light Z-scheme photocatalyst composed of CuInS 2 quantum dots anchored on BiOCl nanoplates (CuInS 2 /BiOCl) that overcomes this barrier. Femtosecond transient absorption, steady-state spectroscopy and theoretical calculations show that an internal electric field steers photo-generated electrons (e − ) migrating to CuInS 2 and holes (h + ) to BiOCl, maximizing their redox potentials for simultaneous carbon–fluorine scission and carbon chain breakage, respectively. Computations revealed that benzene sulfonic acid and carbon fluoride groups…
Citation impact
- FWCI
- 37.89
- Percentile
- 99%
- References
- 70
Authors
19- FLFuyu Liu
Qingdao University, Shandong University of Science and Technology
- HLHonglei Li
Qingdao University, Shandong University of Science and Technology
- ZGZixiang Gao
Qingdao University, Shandong University of Science and Technology
- QSQiang Song
The University of Sydney
- PJPatrick J. Cullen
The University of Sydney
Topics & keywords
- Photocatalysis
- Carbon fibers
- Benzene
- Adsorption
- Bisphenol A
- Ultraviolet
- Nucleophile
- Electrophile