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Strategic energy-level modulation in porous heterojunctions: advancing gas sensing through Type-I to Type-II transitions

Author

Listed:
  • Yong-Jun Chen

    (Chinese Academy of Sciences (CAS) Fuzhou
    Fuzhou)

  • Yi-Ming Xu

    (Chinese Academy of Sciences (CAS) Fuzhou
    ShanghaiTech University)

  • Xiao-Liang Ye

    (Chinese Academy of Sciences (CAS) Fuzhou
    Fuzhou)

  • Zhi-Peng Luo

    (Fuzhou)

  • Shi-Peng Zhu

    (Fuzhou)

  • Ke-Feng Li

    (Chinese Academy of Sciences (CAS) Fuzhou)

  • Jiang-Feng Lu

    (Chinese Academy of Sciences (CAS) Fuzhou)

  • Guan-E Wang

    (Chinese Academy of Sciences (CAS) Fuzhou
    Fuzhou)

  • Gang Xu

    (Chinese Academy of Sciences (CAS) Fuzhou
    Fuzhou
    University of Chinese Academy of Sciences (UCAS))

Abstract

To significantly enhance reaction efficiency of porous heterojunctions in various applications, precise engineering of customization heterostructures through energy-level modulation is indispensable. Herein, the preparation of a core-shell porous heterojunction, UiO-66@TDCOF, is reported. Taking advantage of adjustable structure of metal-organic frameworks (MOFs), the energy-level of UiO-66 core is tailored to precisely align with that of porphyrin-based covalent organic framework (denoted as TDCOF) shell. As a results, the heterojunction transitions flexibly from a type-I to a type-II configuration, which remarkably enhances the efficiency of charge separation under light irradiation, resulting in exceptional performances in chemiresistive gas sensing. Notably, the sensitivity of (NH2)1.24-UiO-66@TDCOF towards NO2 is at a high level among all reported heterojunctions under visible-light condition, surpassing the majority of previously reported MOF and COF materials. This research not only presents a strategy for the design of heterojunctions but also gives an approach to material design tailored for chemical applications.

Suggested Citation

  • Yong-Jun Chen & Yi-Ming Xu & Xiao-Liang Ye & Zhi-Peng Luo & Shi-Peng Zhu & Ke-Feng Li & Jiang-Feng Lu & Guan-E Wang & Gang Xu, 2025. "Strategic energy-level modulation in porous heterojunctions: advancing gas sensing through Type-I to Type-II transitions," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-61836-5
    DOI: 10.1038/s41467-025-61836-5
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