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Dihydrogen orthophosphate on phosphomolybdic acid/(Ln-MOFs) modified glassy carbon electrode electrochemical reduction process by Baoqin Mu; Bin Li; Bin Qi is a Materials Science article available to read on EtoBox.

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Lanthanide metal–organic framework Ln-MOFs(Ln = Sm, Dy, Dy/Sm) were synthesized by hydrothermal method at 100 °C for 12 h using lanthanide metals (Ln = Sm, Dy, Dy/Sm) as metal ion centers and 1,3,5-benzotrioic acid (H3BTC) as ligands. The structural characteristics of Ln(BTC)(H2O)·(DMF) were characterized by X-ray Diffraction(XRD), Fourier Transform Infrared Spectroscopy(FT-IR) and Thermogravimetric Analysis(TGA). Scanning electron microscopy showed that the samples showed rod-like morphology, and the fluorescence spectra showed 478 nm and 573 nm corresponding to the characteristic transitions of 4F9/2→6H15/2 (blue light) and 4F9/2→6H13/2 (yellow light) of Dy3+, respectively, while orange light at 600 nm and red light at 646 nm corresponded to the characteristic transitions of 4G5/2→6H7/2 and 4G5/2→6H9/2 of Sm3+, demonstrating that the double-doped lanthanide metal ions MOF were successfully synthesized. H7(P(Mo2O7)6)/(Dy/Sm-MOF) was used as a sensor for the determination of H2PO4 −, the results of performance evaluation showed that the electrochemical sensor showed a linear relationship between 0.01 and 0.17 mM for H2PO4 −, with a detection limit of 0.005 mM/L, good stability and

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Author

Baoqin Mu; Bin Li; Bin Qi

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Materials Science (Physical Sciences)