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

IF 5.9 2区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ChemSusChem Pub Date : 2026-09-04 DOI:10.1002/cssc.71036

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

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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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天然阳光驱动的H2O2光合作用在带隙工程Truxene-Based多孔芳香框架上。

开发利用自然光驱动过氧化氢（H2O2）进行光合作用的高效光催化剂是目前研究的热点。在本研究中，我们通过引入不同的电子受体作为连接单元，设计了两种光敏给体(D)-受体(A)型truxene基多孔芳香框架（tx - paf）。结果表明，具有较强D-A相互作用的芴酮连接的Tx-PAF具有较宽的光吸收范围和较强的电荷分离能力。在氙灯照射下，Tx-PAF光催化产H2O2的速率分别为3443 μmol g-1 h-1 （O2气氛）和1153 μmol g-1 h-1（空气）。值得注意的是，即使在自然光照下，H2O2的产率也可以达到716 μmol g-1 h-1。本研究为设计高效、稳定的paf基光催化剂直接驱动太阳能生产H2O2提供了可行的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ChemSusChem 化学-化学综合

CiteScore

15.80

自引率

4.80%

发文量

555

审稿时长

1.8 months

期刊介绍： ChemSusChem Impact Factor (2016): 7.226 Scope: Interdisciplinary journal Focuses on research at the interface of chemistry and sustainability Features the best research on sustainability and energy Areas Covered: Chemistry Materials Science Chemical Engineering Biotechnology