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Citation: Fan LIU, Xiaoli CHEN, Jing REN, Yantao LEI, Huali CUI, Hua YANG, Jijiang WANG. Highly sensitive and multi-response Zn-MOF fluorescence sensor: Design, synthesis, and detection of 4-nitrophenol, Cu2+, and pyrimethanil[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(4): 872-882. doi: 10.11862/CJIC.20250287 shu

Highly sensitive and multi-response Zn-MOF fluorescence sensor: Design, synthesis, and detection of 4-nitrophenol, Cu2+, and pyrimethanil

  • Laboratory of New Energy & New Function Materials, Shaanxi Key Laboratory of Chemical Reaction Engineering, School of Chemistry and Chemical Engineering, Yan′an University, Yan′an, Shaanxi 716000, China

  • Corresponding author: Xiaoli CHEN, chenxiaoli003@163.com
  • Received Date: 15 September 2025
    Revised Date: 12 January 2026

Figures(8)

  • Based on 4′-(1H-tetrazol-5-yl)-[1, 1′-biphenyl]-2, 4, 6-tricarboxylic acid (H4bta) ligand, zinc metal-organic framework (Zn-MOF): {[Zn2(bta)(bpy)2(H2O)]·1.5H2O}n (bpy=2, 2′-bipyridine) was designed and synthesized by hydrothermal method. Its structure was characterized by elemental analysis, IR spectra, X-ray single crystal diffraction, etc. The asymmetric unit of Zn-MOF contains two crystallographically independent Zn2+ ions. Through the connection of Zn2+ ions via H4bta, a 1D double-layer network structure is formed. Adjacent double-layer networks further form a 2D supramolecular network through hydrogen bonding. Notably, Zn-MOF exhibited excellent fluorescence properties and could efficiently and sensitively detect various water pollutants: 4-nitrophenol (4-NP), Cu2+, and pyrimethanil (Pth). Additionally, the mechanism of fluorescence sensing was investigated.
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