Polyaniline (PANI) and titanium-based ion exchangers have garnered considerable attention due to their superior ion exchange characteristics in significant environmental applications, ion exchange membranes, and solid-state electrochemistry. The synthesis of polyaniline/Ti(IV) iodovanadate (TiIVd). nanocomposite ion exchangers was successfully achieved through the sol-gel mixing of the organic conducting polymer within the matrices of the corresponding inorganic ion exchangers. The materials are characterized by using various analytical techniques like XRD, FTIR, TGA-DTG and SEM. The ion exchange capacity and distribution coefficients of various metal ions have been determined to understand the cation exchange behavior of the material.On the basis of distribution studies, the material was found to be selective for Pb2 + ion.The SEM images demonstrated that the morphology of the composite materials underwent alterations subsequent to the incorporation of the Ti(IV) iodovanadate (TiIVd). inorganic ion exchanger. The ion-exchange capacities of the PANI/TiVd cation-exchanger for various metal ions are as follows: Lithium (Li+): 0.30 meq/g; sodium (Na+): 0.35 meq/g; and potassium (K+): 0.42 meq/ g. In contrast, the ion-exchange capacities of the Ti(IV) iodo vanadate cation-exchanger(TiIVd). for the same metal ions are: Li+: 0.09 meq/g; Na+: 0.21 meq/g; and K+: 0,72 meq/g. A comparative analysis reveals that the PANI/TiIVd nanocomposite exhibits enhanced ion-exchange capacity relative to Ti(IV) iodo vanadate(TiIVd).The materials synthesized in the present study exhibit superior thermal stability and enhanced ion exchange capacity. Antimicrobial activity assessments demonstrate that the nanocomposite ion exchangers, as well as their H+ forms, exhibit effectiveness against several bacterial strains, including Escherichia coli, Streptococcus, Pseudomonas aeruginosa, and Klebsiella Ti(IV) iodo vanadate(TiIVd). and H+ form of PANI/ Ti(IV) iodo vanadate (TiIVd)ion exchangers are thermally stable than PANI-SO42- salt.