Abstract
AbstractChitosan (CTS) and polyvinyl alcohol (PVA) are two environmentally friend polymers. In this research, methacrylate‐modified FDU‐12 (FDU‐12‐NH2) nanoparticle was synthesized. It was used in the preparation of CTS/PVA/FDU‐12‐NH2 (2%, 5% w) composites. Fourier transfer infrared spectroscopy, nitrogen adsorption/desorption, and transmission electron microscopy techniques were applied for the characteristics of the composites. Then, the produced composites were used as the adsorbents to remove cadmium (II) from the aqueous solutions. The optimal conditions of the Cd (II) adsorption factors were achieved. The different isotherms and kinetic models were applied to obtain the equilibrium adsorption information. The results indicated that Freundlich isotherm was the best isotherm model. Also, the kinetic model followed the pseudo‐second‐order. The maximum adsorption capacities were found 125 and 200 mgg−1 of the adsorbents by the Langmuir model. The results showed that the synthesized nanocomposite exhibited a good adsorbent for cadmium metal in the aqueous solution.
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