Potash alum doped polyaniline: Structure and properties

Abstract

Polyaniline (PANI), synthesized by oxidative polymerization method, is doped with different concentration of Potash alum. The structure and properties of Potash alum doped polyanilines are inves tigated by FTIR, UV-Vis spectroscopy, scanning electron microscopy (SEM), X ray diffraction (XRD), X ray Fluorescence Spectrophotometer (XRF) and conductivity measurement. The ac conductivity of the samples is measured at room temperature. The ac conductivity of the PANI increases from 1.32 × 10 -3 to 12.37 × 10 ⎯3 Ω -1 cm -1 with increase in potash alum concentration at high frequency region. The advantage of this method is that dopant used here is cheap and non toxic in nature when compared with toxic mineral acid, which is widely used as dopant for polyaniline.

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Preferential and Enhanced Adsorption of Dyes on Alum Doped Nanopolyaniline

“…This doping condition in turn causes widespread damage to the environment and is not suitable for industrial applications. In our previous study, we demonstrated the adsorption of anionic dyes in the presence of potash alum doped PANI, which provides a nontoxic, eco-friendly environment for adsorption. , However, synthesizing the material in nano form could lead to improvements in the adsorption capacity with superior dye removal properties. Therefore, better routes to highly efficient, low cost, and environment friendly materials are clearly needed.…”