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Synthesis and characterization of a novel N-rich porous organic polymer and its application as an efficient porous adsorbent for the removal of Pb(II) and Cd(II) ions from aqueous solutions

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Abstract

In this study, a novel N-rich triazine-based porous organic polymer (NR-POP) was synthesized via Schiff-base condensation. The structure of the synthesized porous polymer was identified using FT-IR, XRD, SEM, EDS, TEM, TGA, and BET analyses. The adsorption efficiency of this polymer was investigated for the removal of lead and cadmium ions pollutants. The adsorption processes of Pb(II) and Cd(II) metal ions by this polymer adsorbent were exothermic and matched by the Langmuir isotherm with a high correlation coefficient (R2 = 0.9904, 0.9778), the maximum adsorption capacity (833.33, 178.57 mg g−1), and the pseudo-second-order kinetic model. Furthermore, NR-POP showed an excellent adsorption selectivity for Pb(II) compared to Cd(II).

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Acknowledgements

We gratefully acknowledge the financial support of this work by the research council of Arak University.

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Design of proposal was presented by Akbar Mobinikhaledi and Javad Ghanbari. The experimental section was done by Javad Ghanbari. The interpretation of data, preparing of the manuscript and its editing were performed by Akbar Mobinikhaledi and Javad Ghanbari.

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Correspondence to Akbar Mobinikhaledi.

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Ghanbari, J., Mobinikhaledi, A. Synthesis and characterization of a novel N-rich porous organic polymer and its application as an efficient porous adsorbent for the removal of Pb(II) and Cd(II) ions from aqueous solutions. Environ Sci Pollut Res 30, 68919–68933 (2023). https://doi.org/10.1007/s11356-023-27274-w

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  • DOI: https://doi.org/10.1007/s11356-023-27274-w

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