关键词: 金属有机骨架材料,  , 呋喃类抗生素, 检测限, 荧光探针, 聚集诱导效应

Abstract:  We designed and synthesized a metal organic framework material tpe-UiO-67 with UiO-67 type by using biphenyl dicarboxylic acid modified with tetraphenylethylene as a linker  with  aggregation induced emission (AIE) properties and a mixed ligand strategy. We characterized it by using  Fourier transform infrared spectroscopy， X-ray powder  diffraction， ¹H nuclear magnetic resonance spectra and thermogravimetric analysis, and applied it to detect nitrofuran antibiotics in aqueous solutions. The experimental results show that  tpe-UiO-67 has stable chemical properties  and excellent luminescence performance, and can detect nitrofuran antibiotics in aqueous solution with high sensitivity. The fluorescence quenching efficiency is linearly correlated with antibiotic concentration when the antibiotic concentration in the environment is not less than  2.0 × 10^-5 mol/L.

Key words: metal organic framework material,  , nitrofuran antibiotics,  , detection limit,  , fluorescent probe, aggregation induced effect