Photocatalytic degradation of carcinogenic methylene blue dye by using polyaniline-nickel ferrite nano-composite

The present work deals with the development of a novel method for the removal of color from textile dying wastewater by using conducting polyaniline-NiFe2O4 nano-composite. It is successfully synthesised in situ through self polymerisation of monomer aniline. Photocatalytic degradation studies are carried out for water soluble carcinogenic methylene blue (MB) dye by using polyaniline (PANI)-Nickel Ferrite (NiFe2O4) nanocomposite in aqueous solution. Different parameters like dye concentration, dose of photocatalyst, contact time and pH have been studied to optimise reaction condition. It is observed that photocatalytic degradation by PANI-NiFe2O4 nanocomposite is a more effective and faster mode of removing Methylene blue(MB) dye than work done before. The optimum conditions for the removal of the MB dye are initial concentration 30ppm, photocatalyst dose 8gm\lt, pH 8.5.The EDS technique gives elemental composition of synthesised PANI-NiFe2O4.The SEM and XRD studies are carried for morphological feature characteristics of PANI-NiFe2O4 nano-composite. Also the kinetics studies have been carried out.

Author(s): Manohar R. Patil and V. S. Shrivastava

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