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Comparison of the adsorption behavior of flavonoids on three macroporous adsorption resins modified with hydrogen-bond groups

Authors

  • Helin Ye,

    1. Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    2. Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    3. Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
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  • Zhenbin Chen,

    1. State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou, China
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  • Yongfeng Liu,

    1. Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    2. Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    3. Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
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  • Song Lou,

    1. Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    2. Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    3. Graduate University, Chinese Academy of Sciences, Beijing, People's Republic of China
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  • Duolong Di

    Corresponding author
    1. Key Laboratory of Chemistry of Northwestern Plant Resources, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
    2. Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, People's Republic of China
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ABSTRACT

Three macroporous crosslinked poly(styrene-co-divinyl benzene) resins functionalized with p-phenylene diamine (PPDA), p-aminophenol, and p-aminobenzoic acid (PANB) groups were prepared, and their adsorption characteristics for the flavonoid constituents from the leaves of Olea europaea L were studied. The materials were characterized by Fourier transform infrared spectroscopy. The specific surface area and the pore size distribution of the adsorbents were calculated by the Brunauer–Emmett–Teller and Barrett-Joyner-Halenda methods. The results show that the materials had a faster adsorption rate and high adsorption capacities for flavonoids, and PPDA had the highest adsorption capacity in comparison with the others. The isotherms could be fitted by the Freundlich model, and the adsorption was an exothermic process. The adsorption kinetics could be characterized by the pseudo-second-order rate equation, and the initial stage was controlled by the intraparticle diffusion model. This study contributes to the remediation of adsorption for organic materials and active components of natural products and to the effects of different functional groups on adsorption mechanisms. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40188.

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