Crosslinked-Chelating Porous Sheet with High Dynamic Binding Capacity of Metal Ions

G. Wada, Ryo Ishihara, Kazuyoshi Miyoshi, Daisuke Umeno, Kyoichi Saito, Shiho Asai, Shinsuke Yamada, Hideyuki Hirota

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

A crosslinked chelating porous sheet was prepared by cografting ethylene glycol dimethacrylate (EGDMA) with glycidyl methacrylate onto an electron-beam-irradiated porous polyethylene sheet, followed by the introduction of an iminodiacetate group. At a molar percentage of EGDMA of 1.0 mol%, the sheet exhibited a maximum dynamic binding capacity for copper ions of 0.93 mmol/g, while the equilibrium binding capacity remained the same (1.2 mmol/g) as that of a non-crosslinked chelating porous sheet. The crosslinking of the grafted chain causes copper ions to lower their diffusion rate along the sheet thickness driven by the gradient of the amount of copper ions adsorbed.

Original languageEnglish
Pages (from-to)210-220
Number of pages11
JournalSolvent Extraction and Ion Exchange
Volume31
Issue number2
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • crosslinking
  • dynamic binding capacity
  • electron-beam-induced graft polymerization

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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