5.  Magnetite Nanocomposites, Application for Decontamination of Wastewaters

Authors: S.G. Muntean, M.A. Nistor, A.A. Andelescu, M.E. Radulescu-Grad and R. Ianos


Abstract:

The present work describes the application of magnetic nanoparticles embedded within a matrix of activated carbon as adsorbent for acid dyes and Cu(II) removal from wastewaters, in selected working conditions. The effects of process variables: pH solution, adsorbent ratio and dose, initial concentration of polutant, and contact time was investigated in order to determine the optimal patrameters of the process. Pseudo-second order kinetic model was fitted to the kinetic data, and adsorption isotherm analysis was used to elucidate the adsorption mechanism. The experimental results suggest that as-prepared magnetite/carbon nanocomposites has the potential applications in the water purification management.


Keywords: magnetic nanocomposites, adsorption, complex acid dye, metal ions

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