ArticleJournal of fluorescence2026
A Multifunctional Luminescent Tb-MOF for Selective Fluorometric Detection of Cr(VI) and Steroid Hormones.
Article in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Metal-organic frameworks (MOFs) have attracted considerable attention as luminescent materials for chemical sensing due to their structural tunability, high sensitivity, and rapid response. In this study, a terbium-based metal-organic framework (Tb-MOF) was synthesized via a solvothermal method using 3,4-pyridinedicarboxylic acid and 1,10-phenanthroline as organic ligands. The structural and morphological properties of the synthesized material were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray analysis (SEM-EDX), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). The photoluminescence properties of Tb-MOF were investigated using fluorescence spectroscopy under UV excitation. The sensing performance of the material was evaluated toward various analytes, including metal ions, common anions, and representative hormone molecules. The Tb-MOF exhibited a strong green emission centered at approximately 544 nm and showed pronounced fluorescence quenching in the presence of Cr(VI) ions. In contrast, most other tested metal ions and anions produced negligible changes in fluorescence intensity. Quantitative analysis revealed a Stern-Volmer quenching constant (K
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