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.

Metal-Organic Frameworks (MOFs) are of bright promise as new fluorescence sensors because of their accurate framework structure and unique fluorescence properties. Large amount of MOFs have been reported as fluorescence...

Fluorescence resonance energy transfer (FRET) is often applied to construct fluorescent probe for acquiring high selectivity and sensitivity. According FRET theory, homodimer composed of two identical fluorophores with small Stokes...