A suitable method for removing of heavy metal ions from aqueous solutions using proper copolymer and its derivations

چکیده مقاله

Synthesis of copolymers such as poly (styrene alternative maleic anhydride) (SMA), (SMA+ Melamine +1,3-diaminopropane) (CSMA-M), (CSMA-M + propanedioic acid) (CSMA-MP) and (CSMA-M + butanedioic acid ) (CSMA-MB) for removing heavy metal ions from aqueous solutions. Adsorption of Cd (II), Pb (II) and Zn(II) on modified copolymers and adsorption behavior of these heavy metal ions on the adsorbents were studied by altering the characters such as pH, adsorbent dose, contact time, and heavy metal ions concentration. Adsorption percentage was increased by increasing each of these parameters. The isotherm models such as: Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich were applied to illustrate adsorption equilibrium. The outcomes shown that the best consistency was accessed with the Langmuir isotherm equation, production maximum adsorption capacities of these adsorbents are very suitable for removing heavy metal ions from aqueous solutions. The adsorbents were characterized by Fourier transform infrared spectroscopy scanning electron microscopy and X-ray diffraction analysis.

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