الفهرس | Only 14 pages are availabe for public view |
Abstract Metal organic framework (MOF) represents an attractive material to be functional as an ionophore because of array of nurturing features such as large surface area, porous structure and electrocatalytic activity. Herein, a newly synthesized MOFs (Cu-MOF and Co-MOF) based on a novel nano-Schiff base ligand (H₂L), as a linker, were developed under ultrasonic condition and characterized via various characterization tools including, powder X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), Ultraviolet-Visible (UV-Vis) spectroscopy, morphological scanning electron microscope (SEM) combined with Energy Dispersive X-Ray analysis (EDX), Brunauer{u2013}Emmett{u2013}Teller (BET) surface area measurement technique, thermogravimetric analysis (TGA) and contact angle measurement technique. The FT-IR and UV-Vis spectra confirmed the binding of the carboxylate groups of the ligand (H₂L) to Cu(II) and Co(II) ions in the MOFs structure. The SEM images naked the presence of Schiff base ligand and MOFs in nanoscale. The XRD data suggested that MOFs have mesoporous structure. The synthesized MOFs were successfully applied as an ionophores in carbon paste electrodes for determination of Al(III) (Cu-MOF) and Cr(III) ion (Co-MOF) in different real samples, respectively. The newly synthesized MOFs modified CPEs showed an enhancement in selectivity and sensitivity towards determination of Al(III) and Cr(III) ions |