Magnetic polymer–supported adsorbent with two functional adsorption sites for phosphate removal

  • Ting Li
  • Pengwei Huang
  • Taiwan Liao
  • Jia Guo
  • Xiang Yu
  • Boping Han
  • Liang Peng
  • Yi ZhuEmail author
  • Yuanming Zhang
Research Article


In this paper, a new magnetic polymer–supported phosphate adsorbent MPVC-EDA-Ce was prepared by loading cerium (hydr)oxides onto ethylenediamine-functionalized polyvinyl chloride for the first time. MPVC-EDA-Ce showed excellent adsorption performances towards phosphate and easy recovery. The adsorption isotherm and kinetics of MPVC-EDA-Ce followed Langmuir monolayer model and the pseudo-second-order model, respectively. The pH results demonstrated that the MPVC-EDA-Ce could effectively remove phosphate in a wide range of pH with insignificant cerium leaching. Furthermore, analyses on adsorption mechanism and effect of competing anions demonstrated the formation of strong inner-sphere complexation between cerium (hydr)oxides and phosphate, which was a selective adsorption process, while positively charged quaternary ammonium groups adsorbed phosphate via relatively weak electrostatic attraction which was a non-selective adsorption process. The study provided a good reference to design novel phosphate adsorbents with two even more functional adsorption sites and a deep insight to investigate the adsorption mechanism towards phosphate.


Functionalized polyvinyl chloride Cerium (hydr)oxides Quaternary ammonium groups Two functional adsorption sites Phosphate removal 


Funding information

This work was supported by Guangdong Provincial Department of Science and Technology Application Research and Development Supporting Special Fund Project (2015B020235007) and the National Major Science and Technology Program for Water Pollution Control and Treatment (2013ZX07105-005).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

11356_2019_6351_MOESM1_ESM.doc (1.3 mb)
ESM 1 (DOC 1303 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Ting Li
    • 1
  • Pengwei Huang
    • 1
  • Taiwan Liao
    • 1
  • Jia Guo
    • 2
  • Xiang Yu
    • 3
  • Boping Han
    • 4
  • Liang Peng
    • 4
  • Yi Zhu
    • 1
    Email author
  • Yuanming Zhang
    • 1
  1. 1.Department of ChemistryJinan UniversityGuangzhouPeople’s Republic of China
  2. 2.Department of EcologyJinan UniversityGuangzhouPeople’s Republic of China
  3. 3.Analytical & Testing CenterJinan UniversityGuangzhouPeople’s Republic of China
  4. 4.Institute of HydrobiologyJinan UniversityGuangzhouPeople’s Republic of China

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