Abstract

The development of environmental friendly techniques for synthesizing material is a main interest in green chemistry, as the absence of organic solvents in the synthetic routs is a major presage for realizing green ways. Based on this viewpoint, a solvent free green rout has been employed to prepare magnetic MnFe2O4 nanoparticles and MnFe2O4 reinforced polyamide resin. MnFe2O4 nanoparticles was synthesized through mixing the solid reagents with NaOH at room temperature. Polyamide and magnetic resin were synthesized through heating the mixture of citric acid, p-phenylenediamine and MnFe2O4 at 155°C. The products were characterized with XRD, VSM, FT - IR, FE - SEM and TEM techniques. Characterization analysis revealed that the magnetic nanoparticles were less than 20nm in diameter, and polyamide possessed stacked sheet structure with thickness in nano scale. Prepared magnetic resin was employed as a green adsorbent for removing Congo red from aqueous solution. Equilibrium was obtained within one minute as well as the sorbent showed a superior adsorption capacity of 1000mgg−1.

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