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Peer-reviewedCC BY-NCCell Press Blue

Donor-dimensionality-modulated excited state in conjugated microporous polymers for enhanced photocatalysis

  • Ke Li1,2
  • Yali Du2
  • Huiqing Lv3
  • Shuhan Sun1
  • Sónia A. C. Carabineiro4
  • Chenglin Wu2
  • Xianqiang Xiong2
  • Zhanfeng Li1
  • Min‐Quan Yang5
  • Bo Weng6,7
7 affiliations
  1. 1Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
  2. 2Zhejiang Key Laboratory of New Drug Development for Central Nervous System Diseases, Taizhou University, Taizhou, Zhejiang 318000, China
  3. 3School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311402, China
  4. 4LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology | NOVA FCT, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
  5. 5College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, Fujian 350007, China
  6. 6State Key Laboratory of Advanced Environmental Technology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, China
  7. 7University of Chinese Academy of Sciences, Beijing 100049, China
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Abstract

Precise excited-state control in donor-acceptor conjugated microporous polymers (CMPs) is essential for photocatalysis but challenging due to energy losses from locally excited (LE) states. We report a dimensionality modulation strategy for donor units to suppress LE-mediated intersystem crossing (ISC) and enhance charge-transfer (CT) states. Three different CMPs coupling a thiophene- S , S -dioxide (SO) acceptor with one-dimensional (1D) phenylene, two-dimensional (2D) pyrene, and three-dimensional (3D) tetraphenylethene donors were synthesized. The 2D pyrene-based Py-SO-CMP exhibits superior photocatalytic tetracycline degradation, with a rate constant 45 times that of its 1D analog. It maintains >90% removal for 50 h in flow systems with complete detoxification confirmed. Transient spectroscopy and modeling attribute this to delocalized CT states, ultralow exciton binding energy (54.92 meV), and minimized triplet losses. This work establishes donor-dimensionality control to mitigate ISC losses and enhance excited-state utilization.

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Cite

BibTeXRIS
BibTeX
@article{li2026donordimensionalitymodulated,
  title = {{Donor-dimensionality-modulated excited state in conjugated microporous polymers for enhanced photocatalysis}},
  author = {Ke Li and Yali Du and Huiqing Lv and Shuhan Sun and Sónia A. C. Carabineiro and Chenglin Wu and Xianqiang Xiong and Zhanfeng Li and Min‐Quan Yang and Bo Weng},
  journal = {Cell Press Blue},
  year = {2026},
  month = may,
  doi = {10.1016/j.cpblue.2026.100032},
  url = {https://doi.org/10.1016/j.cpblue.2026.100032},
  note = {CC BY-NC},
}
RIS
TY  - JOUR
TI  - Donor-dimensionality-modulated excited state in conjugated microporous polymers for enhanced photocatalysis
AU  - Ke Li
AU  - Yali Du
AU  - Huiqing Lv
AU  - Shuhan Sun
AU  - Sónia A. C. Carabineiro
AU  - Chenglin Wu
AU  - Xianqiang Xiong
AU  - Zhanfeng Li
AU  - Min‐Quan Yang
AU  - Bo Weng
PY  - 2026
DA  - 2026/05/29
JO  - Cell Press Blue
DO  - 10.1016/j.cpblue.2026.100032
UR  - https://doi.org/10.1016/j.cpblue.2026.100032
AB  - Precise excited-state control in donor-acceptor conjugated microporous polymers (CMPs) is essential for photocatalysis but challenging due to energy losses from locally excited (LE) states. We report a dimensionality modulation strategy for donor units to suppress LE-mediated intersystem crossing (ISC) and enhance charge-transfer (CT) states. Three different CMPs coupling a thiophene- S , S -dioxide (SO) acceptor with one-dimensional (1D) phenylene, two-dimensional (2D) pyrene, and three-dimensional (3D) tetraphenylethene donors were synthesized. The 2D pyrene-based Py-SO-CMP exhibits superior photocatalytic tetracycline degradation, with a rate constant 45 times that of its 1D analog. It maintains >90% removal for 50 h in flow systems with complete detoxification confirmed. Transient spectroscopy and modeling attribute this to delocalized CT states, ultralow exciton binding energy (54.92 meV), and minimized triplet losses. This work establishes donor-dimensionality control to mitigate ISC losses and enhance excited-state utilization.
SN  - 3051-3839
ER  -