An Exceptionally Stable Tb^III-Based Metal–Organic Framework for Selectively and Sensitively Detecting Antibiotics in Aqueous Solution

Abstract

An exceptionally stable metal-organic framework based on one-dimensional (1D) Tb^III chains with significant green emission under excitation energy, {[Tb(TATMA)(H₂O)·2H₂O} _n (namely, 1), has been fabricated successfully under hydrothermal conditions. By virtue of the spectral overlap between the absorbance spectra of nitrofurans (NFAs) and the excitation spectrum of MOF 1, the resultant sample exhibits outstandingly sensitive and selective luminescence detectability for NFT ( K_sv = 3.35 × 10⁴ M^-1) and NFZ ( K_sv = 3.00 × 10⁴ M^-1) by quenching phenomenon. More importantly, it can detect NFAs in water from bovine serum samples. The portable MOF film can be easily prepared and used with excellent stability and recursitivity.