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Polypyrrole-A conducting nanopolymer for the treatment of simulated textile effluent

Journal of Environment & Biotechnology Research, Vol. 1, No. 1, Pages 45-51, October 2015

V. Janaki, K. Shanthi, S. Kamala-Kannan

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ABSTRACT

The aim of the study was to synthesize polypyrrole (PPy) nanopolymers and to evaluate its potential for the decolorization of simulated textile effluent. PPy nanopolymer was prepared by in vitro chemical oxidative polymerization of pyrrole monomer using ammonium peroxydisulfate as oxidant. Scanning electron microscopy image showed that the nanopolymer was irregular in shape and mostly present in aggregates. The size of the nanopolymer varied from 40 to 80 nm. Fourier transform infrared spectroscopy study showed the characteristic peaks of PPy from 1308 to 681 cm^-1 with different vibrational modes. X-ray diffractogram indicates the amorphous nature of the nanopolymer. Batch experiments were carried out as a function of contact time and pH. The PPy nanopolymer decolorized 80% of the dyes that were present in the simulated reactive dye effluent. The equilibrium adsorption data followed the modified Freundlich model and modified pseudo-first-order kinetics. The results of the study indicate that the PPy nanopolymer could be used for the treatment of textile effluents.
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