Taiyuan Ligong Daxue xuebao (May 2021)

Preparation of HxPO4(3-x)- Imprinted Polypyrrole Membrane Material and Its Electrochemically Switched Ion Exchange Properties

  • Lifang XING,
  • Qinbo YUAN,
  • Liang CHEN,
  • Xianxian ZHOU,
  • Yu LI,
  • Enzhi WANG,
  • Panpan LIU,
  • Shibin LIU

DOI
https://doi.org/10.16355/j.cnki.issn1007-9432tyut.2021.03.007
Journal volume & issue
Vol. 52, no. 3
pp. 374 – 381

Abstract

Read online

The polypyrrole-based imprinted membrane material was prepared on gold plated quartz wafer by potentiostatic method. The morphology, structure, and composition of membrane material were characterized by SEM, FT-IR, and XPS. The results show that the surface micromorphology of material was cauliflower-like, and the membrane contained H2PO4-, which had the characteristics of H2PO4- imprinting. The exchange properties of HxPO4(3-x)- were investigated by electrochemical method. The results show that with the increase of pH, the ion exchange capacity first decreased and then increased, showing a “V” shape. As the concentration of NaH2PO4 increased, the ion exchange capacity monotonously increased, up to 150 mg/g.

Keywords