Lanthanide Organic Framework as a Reversible Luminescent Sensor for Sulfamethazine Antibiotics

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.

A Water‐Stable Uranyl Organic Framework as a Highly Selective and Sensitive Bifunctional Luminescent Probe for Fe3+ and Tetracycline Hydrochloride

“…Up to now, a variety of analytical detection techniques have been reported, including electrochemical assays, gas chromatography, liquid chromatography, etc. However, these detection methods are often complicated operation, time consuming, and costly . In contrast, fluorescent probe technology has been received much attention for the advantages of convenience, rapidity, high selectivity, high repeatability and economy …”

“…However,t hese detectionm ethods are often complicated operation, time consuming, and costly. [1,12,13] In contrast, fluorescent probe technology has been received much attentionf or the advantages of convenience, rapidity,h igh selectivity,high repeatability and economy. [2,6] Traditional fluorescent materials can be classified into inorganic luminescent materials and organic luminescent materials.…”

Applications of MOFs as Luminescent Sensors for Environmental Pollutants

“…Other Antibiotics: The sulfonamides, fluoroquinolones, and nitroimidazole of antibiotics were also detected by the LMOF sensors. [108][109][110] Li group demonstrated a In(III)-MOF of BUT-172 by H 3 CTTA ligand. Adjacent In(OH) 2 O 4 octahedrons shares the hydroxyl O atoms, resulting in an rod-shaped SBU, which connects the CTTA 3− ligands into a 3D framework.…”

Di-functional luminescent sensors based on Y3+ doped Eu3+ and Tb3+ coordination polymers: fast response and visible detection of Cr3+, Fe3+ ions in aqueous solutions and acetone

“…The observed K sv value was 4.598 Â 10 4 M À1 . 31 However, the major deciency is the non-radiative transition result from the serious concentration quenching of pure RE-CPs. 32 Co-doping is an efficient method to reduce luminescence centres and improve potential quenching by concentration.…”