2024/04/30 by Yuexin Xiang, Zhinan Xia, Wanchao Hu +3
Energy · Engineering · Materials Science · #Advanced Photocatalysis Techniques #Copper-based nanomaterials and applications #Perovskite Materials and Applications
paper · doi:10.1002/cjoc.202400039
openalex publication_date 2024/04/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
Comprehensive Summary Catechol‐formaldehyde resin (CFR) is very attractive for H 2 O 2 production via the catalytic process. However, the H 2 O 2 formation is accompanied by the oxidation of catechol groups to o ‐benzoquinone groups on CFR, which will cause irreversible damage to CFR and greatly limit its long‐term stable catalytic activity. Herein, CdS/CFR composite photocatalyst with a core‐shell structure was synthesized by hydrothermal method. The photogenerated electrons of CdS are used as a powerful driving force for the reversible redox conversion between catechol groups and o ‐benzoquinone groups on the CFR, which not only achieves the long‐term stability of CFR‐catalyzed production of H 2 O 2 , but also promotes the separation efficiency of photogenerated e – and h + in CdS, greatly inhibiting their recombination, so as to maintain CdS stability. The H 2 O 2 yield of CdS/CFR can accumulate to 1.65 mmol·L –1 under visible light for 6 h without sacrificial agent, which is about 3.1 and 2 times that of CdS and CFR, respectively, and CdS/CFR can persist for 10 cycles of photocatalysis (60 h). CdS/CFR also improves the yield of photocatalytic H 2 O 2 by increasing the selectivity of H 2 O 2 and inhibiting its decomposition. This work offers a novel tactic for expanding the application of CFR in photocatalytic generation of H 2 O 2 .