An anion-functionalized nanoporous polymer was successfully prepared by quaternary ammonization and anion-exchange treatment method. The polymer was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, N2 adsorption/desorption isotherms and thermogravimetric analysis. Batch experiments were conducted to investigate the adsorption behavior of phosphate on the polymer. The results indicated that the experimental equilibrium data can be well described by the Langmuir model. The maximum adsorption capacity determined from the Langmuir model was 4.92 mg g−1. For kinetic study, the adsorption behavior followed the pseudo-second-order model. Thermodynamic studies indicated that the adsorption process was spontaneous and exothermic.
Research Article|July 19 2017
Adsorption behavior of phosphate on anion-functionalized nanoporous polymer
Zhenyu Wu, Dasheng Gao, Ningning Liu; Adsorption behavior of phosphate on anion-functionalized nanoporous polymer. Water Quality Research Journal 8 August 2017; 52 (3): 187–195. doi: https://doi.org/10.2166/wqrj.2017.008
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