Cs <sub>3</sub> Bi <sub>2</sub> Br <sub>9</sub> Quantum Dots‐Driven Photogenerated Bromine Radical Relay Enables Efficient Cleavage of C <i> <sub>α</sub> </i> /C <i> <sub>β</sub> </i> ─O Bonds for Lignin Depolymerization
─O bonds with > 99% selectivity, yielding high-value aromatic aldehydes and phenolic products. Notably, this system overcomes the inherent cycling instability of QDs photocatalysts, maintaining 95% of the initial conversion after seven recycles. Mechanistic studies establish that the exceptional performance originates from the unique halogen exchange capability of CBB QDs, coupled with the optimal band alignment, which enables continuous •Br generation and sustains persistent HAT cycles.
Authors
- Jie Yang (ORCID: https://orcid.org/0000-0001-9535-3594)
- Wencai Yang (ORCID: https://orcid.org/0000-0001-5369-2555)
- Houting Wang
- Ye Wu (ORCID: https://orcid.org/0000-0001-5496-4794)
- Fang Zhang
- Mingxiang Zhu
Institutions
- Shanghai Normal University (CN)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2026-04-16
- DOI
- https://doi.org/10.1002/anie.9602554
- Primary Topic
- Lignin and Wood Chemistry
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China