Electrically conductive membrane of polycarbazole Sn(IV) phosphate cation exchange nanocomposite and their ion-selective and sorption studies

This work presents a novel organic-inorganic nanocomposite ion exchanger synthesized through an in-situ approach that exhibits exceptional ion exchange capacities (IEC similar to 1.95 meq g(-1)). Through solution casting, polycarbazole (PCz) Sn(IV) phosphate ion-exchange membranes were also prepared. Several instruments were utilized to characterize membranes including scanning electron microscopy with thermogravimetric analysis, Fourier-transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. A few parameters, including the working pH range (5-8), the response time (20 s), the linear response range (1.0 x 10(-7) M to 1.0 x 10(-1) M), and the detection limit (1.0 x 10(-7) M), were measured following fabrication of Cu2+ selective membrane electrodes. It also serves as an indicator electrode during the Cu2+ potentiometric titration.