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<p>Photocatalytic hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) production under visible light holds significant promise for sustainable chemistry. Although materials incorporating fused aromatic rings or S-, O-, and N-rich heterocycles exhibited good photocatalytic efficiency, the photocatalytic efficiency of simple aromatic materials is still pretty poor. Herein, we propose a novel strategy using o-phenyl-modified halogen-bonded-assisted organic polymers (XOPs) utilizing the unique [N⋯I<sup>+</sup>⋯N] halogen bonds to tune the electronic properties and enhance photocatalytic efficiency. XOPs offer a streamlined design, maintaining high photocatalytic performance with simple synthesis. The incorporation of <i>o</i>-phenyl groups and [N⋯I<sup>+</sup>⋯N] halogen bonds enhances structural stability and facilitates charge separation, key for improved photocatalytic activity. Experimental results show that XOP-TppPh achieves a H<sub>2</sub>O<sub>2</sub> production rate of 3507 µmol g<sup>−1</sup> h<sup>−1</sup>, surpassing most currently reported simple aromatic materials. This work introduces a sustainable, cost-effective approach to improving photocatalytic efficiency without relying on fused rings or heterocycles.</p>

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Rational design of halogen-bond-assisted organic polymers (XOPs) with [N⋯I+⋯N] orthogonal structures for enhanced hydrogen peroxide production under visible light

  • 期刊论文

  • 发表日期：

    2026年1月4日

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  • Jiahao Zhao,
  • Ning Xia,
  • Hongqiang Dong,
  • Ya Lu,
  • Zhennan Tian,
  • Xiangyi Ding,
  • Xuguan Bai,
  • Lu Wang,
  • Shigui Chen

摘要

Photocatalytic hydrogen peroxide (H2O2) production under visible light holds significant promise for sustainable chemistry. Although materials incorporating fused aromatic rings or S-, O-, and N-rich heterocycles exhibited good photocatalytic efficiency, the photocatalytic efficiency of simple aromatic materials is still pretty poor. Herein, we propose a novel strategy using o-phenyl-modified halogen-bonded-assisted organic polymers (XOPs) utilizing the unique [N⋯I+⋯N] halogen bonds to tune the electronic properties and enhance photocatalytic efficiency. XOPs offer a streamlined design, maintaining high photocatalytic performance with simple synthesis. The incorporation of o-phenyl groups and [N⋯I+⋯N] halogen bonds enhances structural stability and facilitates charge separation, key for improved photocatalytic activity. Experimental results show that XOP-TppPh achieves a H2O2 production rate of 3507 µmol g−1 h−1, surpassing most currently reported simple aromatic materials. This work introduces a sustainable, cost-effective approach to improving photocatalytic efficiency without relying on fused rings or heterocycles.