A new multifunctional nanocomposite based on poly (xanthoneamide-triazole-ethercalix) (PXTE) and TiO2 nanoparticles (PXTE–TiO2), which is a novel class of multiphase material containing nanosized inorganic material within polymer matrix, was prepared and characterized fully in this article. At first, PXTE was synthesized through click reaction, and then PXTE–TiO2 nanocomposite was prepared by chemical immobilization of PXTE onto the modified TiO2 nanoparticles. Nuclear magnetic resonance, Fourier transform infrared, X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, and thermal gravimetric analysis were applied for characterization of synthesized materials. Dye and ion removal capability of PXTE–TiO2 nanocomposite were investigated by batch method for methylene blue and cadmium ion. The results showed that thermal stability and potential applicability of PXTE–TiO2 nanocomposite make it as a good candidate for wastewater refinement.
