Lanthanide Organic Framework as a Reversible Luminescent Sensor for Sulfamethazine Antibiotics

Inorg Chem. 2019 Apr 1;58(7):4223-4229. doi: 10.1021/acs.inorgchem.8b03284. Epub 2019 Mar 14.

Abstract

A water-stable two-dimensional lanthanide organic framework, {Eu(BTB)DMF} n (Eu-MOF; DMF = N, N-dimethylformamide), with two one-dimensional channels was obtained, and its structure was characterized. With changes in the amount of LiOH·H2O, different sizes of {Eu(BTB)DMF} n were synthesized. The prepared Eu-MOF powder is easy to disperse in water and exhibits typical Eu red emission. The fluorescence properties showed that Eu-MOF can detect sulfamethzine (SMZ) with high sensitivity and selectivity. Finally, the as-synthesized Eu-MOF was successfully used for the detection of SMZ in surface water by a standard addition method.