催化学报 ›› 2026, Vol. 87: 140-155.DOI: 10.1016/S1872-2067(26)65093-0

• 论文 • 上一篇    下一篇

三唑环功能化聚(七嗪亚胺): 利用给体-受体构型实现高效太阳驱动过氧化氢合成

Sue-Faye Nga,b,c, Joel Jie Fooa,b, Karlo Nolkemperc,d,e, Zahra Hajiahmadid,e, Jaya Bhartic, Nannan Houg, Jiankang Zhengg, Thomas D. Kühned,e,f, Markus Antoniettic, Christian Mark Pelicanoc,*(), Wee-Jun Onga,b,h,i,*()   

  1. a 厦门大学马来西亚分校能源与化工学院, 马来西亚
    b 厦门大学马来西亚分校纳米能源与催化技术卓越中心(CONNECT), 马来西亚
    c 马克斯-普朗克胶体与界面研究所胶体化学系, 波茨坦, 德国
    d 高级系统理解中心(CASUS), 哥利茨, 德国
    e 亥姆霍兹德累斯顿罗森多夫研究中心, 德累斯顿, 德国
    f 德累斯顿工业大学人工智能研究所, 计算系统科学系, 德累斯顿, 德国
    g 中国科学技术大学环境科学与工程系, 中国科学院城市污染物转化重点实验室, 安徽合肥 230026, 中国
    h 厦门大学化学与化工学院, 表界面化学全国重点实验室, 福建厦门 361005, 中国
    i 厦门大学古雷石化研究院, 福建漳州 363200, 中国
    j 厦门大学深圳研究院, 广东深圳 518057, 中国
    k 高丽大学工程学院化学与生物工程系, 首尔, 韩国
  • 收稿日期:2025-09-19 接受日期:2026-01-12 出版日期:2026-08-05 发布日期:2026-06-24
  • 通讯作者: *电子信箱: christianmark.pelicano@mpikg.mpg.de (C. M. Pelicano), .
    weejun.ong@xmu.edu.my (W.-J. Ong).
  • 基金资助:
    国家自然科学基金(22202168);广东基础与应用基础研究基金(2021A1515111019);中华人民共和国驻马来西亚大使馆(EENG/0045);厦门大学固体表面物理化学国家重点实验室(2023X11);厦门大学马来西亚研究生奖学金(IENG/0038);厦门大学马来西亚研究基金(ICOE/0001);厦门大学马来西亚研究基金(IENG/0090);厦门大学马来西亚研究基金(XMUMRF/2021-C8/IENG/0041);厦门大学马来西亚研究基金(XMUMRF/2025-C15/IENG/0080)

Triazole ring functionalized poly(heptazine imide): Leveraging donor- acceptor configuration toward enhanced solar-driven H2O2 synthesis

Sue-Faye Nga,b,c, Joel Jie Fooa,b, Karlo Nolkemperc,d,e, Zahra Hajiahmadid,e, Jaya Bhartic, Nannan Houg, Jiankang Zhengg, Thomas D. Kühned,e,f, Markus Antoniettic, Christian Mark Pelicanoc,*(), Wee-Jun Onga,b,h,i,*()   

  1. a School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia
    b Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia
    c Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam 14476, Germany
    d Center for Advanced Systems Understanding (CASUS), Untermarkt 20, 02826 Görlitz, Germany
    e Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany
    f Institute of Artificial Intelligence, Chair of Computational System Sciences, Technische Universitat Dresden, 01187 Dresden, Germany
    g CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science & Technology of China, Hefei 230026, Anhui, China
    h State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China
    i Gulei Innovation Institute, Xiamen University, Zhangzhou 363200, Fujian, China
    j Shenzhen Research Institute of Xiamen University, Shenzhen 518057, Guangdong, China
    k Department of Chemical and Biological Engineering, College of Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
  • Received:2025-09-19 Accepted:2026-01-12 Online:2026-08-05 Published:2026-06-24
  • Supported by:
    National Natural Science Foundation of China(22202168);Guangdong Basic and Applied Basic Research Foundation(2021A1515111019);Embassy of the People’s Republic of China in Malaysia(EENG/0045);State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University(2023X11);Xiamen University Malaysia Investigatorship(IENG/0038);Xiamen University Malaysia Research Fund(ICOE/0001);Xiamen University Malaysia Research Fund(IENG/0090);Xiamen University Malaysia Research Fund(XMUMRF/2021-C8/IENG/0041);Xiamen University Malaysia Research Fund(XMUMRF/2025-C15/IENG/0080)

摘要:

太阳能驱动过氧化氢(H2O2)合成是替代传统蒽醌工艺的绿色途径, 其关键挑战在于开发高效光催化剂. 本研究采用碱金属盐(NaCl/KCl/LiCl)熔融辅助的一步煅烧法, 成功将三唑基团作为电子受体引入聚庚嗪酰亚胺(PHI)骨架, 构建了具有明确供体-受体(D-A)构型的氮化碳基催化剂. 最优催化剂(KNa)展现出高效的双功能光催化活性, H2O2与苯甲醛(BAD)的生成速率分别达到9.32 mmol L-1 h-1和8.14 mmol L-1 h-1. 在不使用贵金属助剂的情况下, 其在420 nm处的表观量子效率高达11.58%, 电子-空穴利用率接近理论极限(89%). 性能的提升源于其独特的D-A构型: PHI骨架作为电子供体, 末端三唑基团作为电子受体, 二者协同形成了促进电荷空间分离的内建电场, 显著抑制了光生载流子的复合, 为表面反应提供了充足的动力. 机理研究表明, KNa主要通过高效的两电子路径选择性还原氧气生成H2O2, 同时光生空穴、超氧自由基(O2●-)和单线态氧(1O2)等活性物种驱动苯甲醇选择性氧化. 理论计算进一步阐明, 三唑基团的引入导致PHI骨架电子密度重新分布, 增强了氧气吸附与活化能力, 从而降低了反应能垒.该催化剂在糠醛合成等其他反应中也表现出良好普适性与稳定性.

综上所述,本研究通过分子工程策略成功构建了D-A型氮化碳光催化剂, 实现了H2O2与高值化学品的协同高效合成. 此外, 从电子结构层面深入揭示了D-A构型促进电荷分离与表面催化的内在机制, 为设计多功能光催化系统提供了新思路.

关键词: 氮化碳, 光催化剂, 电子-空穴利用, 过氧化氢制备, 苯甲醛制备

Abstract:

Light-driven synthesis of hydrogen peroxide (H2O2) presents an ideal pathway for sustainability as compared to the traditional anthraquinone process. Herein, we introduce a strategic approach for functionalizing poly(heptazine imide) with triazole groups via a one-step calcination process using alkali-metal salts (NaCl/KCl/LiCl). Featuring a donor-acceptor framework that promotes singlet electron dissociation, the optimal catalyst (KNa) displayed outstanding photocatalytic performance, achieving H2O2 production at 9.32 mmol L-1 h-1 and benzaldehyde (BAD) generation at 8.14 mmol L-1 h-1. KNa reached an apparent quantum efficiency of 11.58% at 420 nm, in the absence of noble-metal cocatalysts. It also exhibited an electron-hole utilization close to unity (89%), indicating its efficiency in driving photoredox reactions. Mechanistic studies conducted through electrochemical measurements and scavenger tests revealed that KNa facilitated a 2-electron pathway for H2O2 production, with photogenerated charges and radicals (electron, hole, O2•-, 1O2) participating in the reaction. A shift in electron density and enhanced O2 adsorption observed from computational analysis reflects the donor-acceptor effect of the terminal triazole units on PHI. The versatility of KNa for other photochemical reactions was also exemplified by its simultaneous generation of H2O2 (1.11 mmol L-1 h-1) and furfuraldehyde (0.75 mmol L-1 h-1). As such, this research paves an in-depth understanding of synergistic dual-functional photocatalysts for photoredox reactions.

Key words: Carbon nitride, Photocatalyst, Electron-hole utilization, H2O2 production, Benzaldehyde production