Optical and Structural Characterization of Polyaniline/Titanium Dioxide Nano Composites

Abstract

Abstract: Polyaniline/ titanium dioxide composite (PANI/TiO2) was synthesized by in-situ chemical polymerization in an ice bath medium for polyaniline with different percentages of TiO2 nanoparticles (3, 6, and 9) wt. %. UV-Vis spectrophotometer, Fourier Transforms Infrared (FTIR) spectrometer, X-ray diffraction (XRD), and Scanning Electron Microscopy (SEM) were used to characterize the materials. The XRD patterns showed polycrystalline structure for PURE PANI and PANI/TiO2 composite of different TiO2 ratios. The FT-IR investigated the presence of polyaniline. The analysis of UV-Vis spectra revealed that the energy gap for PANI/TiO2 decreased with increasing the ratios of TiO2 nanoparticles. Keywords: Conducting polymer, Polyaniline (PANI), Titanium dioxide (TiO2), Structure characterization, Optical properties, PANI composite.