J. Mater. Sci. Technol. ›› 2026, Vol. 249: 305-332.DOI: 10.1016/j.jmst.2025.06.015

• Research article • Previous Articles    

Design and modification strategies of covalent organic frameworks for photocatalytic hydrogen/hydrogen peroxide production

Yuhao Yana,1, Lei Haoa,1, Zhiqiang Renb,1, Rongchen Shena, Guijie Liangc,*, Peng Zhangd,*, Yuan Tenge,*, Difa Xuf, Xin Lia,*   

  1. aInstitute of Biomass Engineering, Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China;
    bSchool of Materials Science and Engineering, Peking University, Beijing 100871, China;
    cHubei Key Lab Low Dimens Optoelect Mat & Devices, Hubei University of Arts and Science, Xiangyang 441053, China;
    dState Centre for International Cooperation on Designer Low-Carbon & Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
    eCollege of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
    fHunan Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha 410022, China
  • Received:2024-11-17 Revised:2025-06-12 Accepted:2025-06-15 Published:2026-04-01 Online:2026-04-01
  • Contact: *guijie-liang@hbuas.edu.cn (Guijie Liang), zhangp@zzu.edu.cn (Peng Zhang), tengyajd@163.com (Yuan Teng), Xinli@scau.edu.cn (Xin Li)
  • About author:1These authors contributed equally to this work.

Abstract: Amidst escalating environmental degradation and energy crises, the pursuit of renewable energy alternatives to fossil fuels has become a global imperative. Covalent organic frameworks (COFs), as emerging crystalline porous materials, demonstrate exceptional capabilities in solar-to-chemical energy conversion through the generation of clean fuels like molecular hydrogen (H2) and hydrogen peroxide (H2O2). The development of efficient semiconductor photocatalysts is pivotal for advancing next-generation energy technologies. This study presents a systematic analysis of the four critical rate-determining steps in COFs photocatalysis: (1) photon absorption, (2) exciton dissociation, (3) charge carrier diffusion and recombination, and (4) surface redox reactions. The kinetic constraints and thermodynamic barriers associated with H2/H2O2 production by COFs-based photocatalytic systems are critically evaluated, with particular emphasis on advanced regulation strategies: (i) enhancing light-harvesting through conjugated structure optimization and external sensitization, (ii) promoting exciton dissociation via Förster resonance energy transfer and localized electronic structure modulation, (iii) strengthening charge separation via crystallinity engineering and polarized field enhancement, and (iv) increasing surface active sites through microenvironment tailoring and cocatalyst integration while reducing reaction energy barriers via pH optimization. Conclusively, current challenges and future design paradigms for constructing high-performance COFs photocatalysts are critically analyzed, with special consideration given to stability-activity trade-offs and scalable synthesis protocols.

Key words: Covalent organic frameworks, Photocatalytic hydrogen production, Photocatalytic hydrogen peroxide production, Kinetics, Thermodynamics