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Updated: Sep 6, 2026

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
Published on: October 5, 2019
Natural-Sunlight-Driven H2O2 Photosynthesis Over Bandgap Engineered Truxene-Based Porous Aromatic Frameworks
Yiming Zhao1, Linzhu Cao1, Lu Sun1
1Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, China.
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.
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