Solid-State Synthesis and Characterization of Polyaniline/TiO2 nanocomposite

Organic–inorganic nanocomposites with an organized structure has been extensively studied because they combine the advantages of the inorganic materials (electrical, mechanical strength, thermal stability and magnetic properties) and the organic polymers (ductility, flexibility, dielectric and processibility), which are difficult to obtain from individual components [1]. Hybrid organic-inorganic nanomaterials are the focus of much attention due to their capacity to enhance electronic and conductance properties of both materials. One important feature is the nanostructuration of such nanocomposite [2,3]. In this work Polyaniline/TiO2 nanocomposite was prepared by using solid-state synthesis method at room temperature. The structure and morphology of the naocomposites were characterized by the Fourier transform infrared (FTIR) spectra, ultraviolet-visible (UV–vis) absorption spectra and scanning electron microscopy (SEM). The electrochemical performances of the nanocomposites were investigated by cyclic voltammetry (CV). The results from FTIR and UV–vis spectra showed that the nanocomposites displayed higher oxidation and doping degree than pure PANI. The technology presented in this study has considerable potential for the low cost, large scale production of polyaniline.