Natural-Sunlight-Driven H₂O₂ Photosynthesis Over Bandgap Engineered Truxene-Based Porous Aromatic Frameworks.

Authors

Yiming Zhao, Linzhu Cao, Lu Sun, Xin Tao, Guangshan Zhu

Published in

ChemSusChem. Volume 19. Issue 17. Pages e71036. Sep 14, 2026.

Abstract

Developing efficient photocatalysts for hydrogen peroxide (H₂O₂) photosynthesis driven by natural sunlight is of great interest. In this study, we designed two photoactive donor (D)-acceptor (A) type truxene-based porous aromatic frameworks (Tx-PAFs) by introducing different electron acceptors as linker units. It was found that fluorenone-linked Tx-PAF with stronger D-A interaction exhibits a broader light absorption range and enhanced charge separation. This Tx-PAF displayed the superior photocatalytic H₂O₂ production with the rates of 3443 μmol g^-1 h^-1 (O₂ atmosphere) and 1153 μmol g^-1 h^-1 (air) under Xe lamp irradiation. Notably, it can also achieve an H₂O₂ production rate of 716 μmol g^-1  h^-1 even under natural sunlight irradiation. This work provides feasible access to designing efficient and stable PAF-based photocatalysts for H₂O₂ production directly driven by solar energy.

PMID:
42696638
Bibliographic data and abstract were imported from PubMed on 05 Sep 2026.

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