Citation: Bangdi GE, Xiaowei SONG, Zhiqiang LIANG. A bifunctional three-dimensional Eu-MOF fluorescent probe for highly sensitive detection of 2, 4, 6-trinitrophenol and tetracycline[J]. Chinese Journal of Inorganic Chemistry, ;2025, 41(10): 2165-2174. doi: 10.11862/CJIC.20250190 shu

A bifunctional three-dimensional Eu-MOF fluorescent probe for highly sensitive detection of 2, 4, 6-trinitrophenol and tetracycline

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China

Corresponding author: Xiaowei SONG, xiaoweisong@jlu.edu.cn Zhiqiang LIANG, liangzq@jlu.edu.cn
Received Date: 7 June 2025
Revised Date: 26 August 2025

Figures(6)

Herein, a luminescent europium-based metal-organic framework (Eu-MOF, [Eu₃(L)(HL)(NO₃)₂(DMF)₂]·4DMF·5H₂O, H₄L=5,5′-(pyrazine-2,6-diyl)diisophthalic acid, DMF=N,N-dimethylformamide) was developed for the dual-functional detection of environmental pollutants. This fluorescence-quenching-based sensor exhibited exceptional sensitivity for both 2,4,6-trinitrophenol (TNP) and tetracycline (TC), achieving remarkably low detection limits of 1.96×10^-6 and 1.71×10^-7 mol·L^-1, respectively. Notably, the system exhibited 99% fluorescence quenching efficiency for TC, indicating ultra-efficient analyte recognition. The detection performance surpasses most reported luminescent MOF sensors, attributed to synergistic mechanisms of fluorescence resonance energy transfer (FRET) and photoinduced electron transfer (PET).
- metal-organic framework,
- bifunctional fluorescent probe,
- tetracycline,
- 2,4,6-trinitrophenol
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