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August 11, 2026ACS Sustainable Chemistry & Engineering

Selective Photocatalytic Cleavage of Cα–Cβ Bond in Natural Lignin and Its Models Enabled by Z-Scheme Bi QDs/g-C3N4 van der Waals Heterojunction

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Authors

YAYin AiNWNa WangMCMingyu Cui

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Overview

Randomized trial demonstrates efficient valorization of lignin into valuable chemicals, suggesting a novel catalytic approach.

Key Points

  • Investigate a cost-effective strategy for photocatalytically cleaving lignin Cα–Cβ bonds using a van der Waals heterojunction.
  • Developed a Z-scheme Bi QDs/g-C3N4 van der Waals heterojunction.
  • Performed experiments under ambient conditions and visible light.
  • Validated the interfacial transfer of charge carriers using combined experimental and theoretical calculations.
  • Achieved complete conversion of lignin β–O–4 models with 97.7% Cα–Cβ bond breakage selectivity.
  • Demonstrated the universality of the system for valorizing native lignin.
  • Identified photoexcited holes and ·O2– as main active species driving bond breakage.

Cite This Study

Ai et al. (2026) studied this question.

synapsesocial.com/papers/6a7ace273401087f2249dfcahttps://doi.org/10.1021/acssuschemeng.6c06160
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