Modification of a hydrophobic-ligand-containing porous sheet using tri-n-octylphosphine oxide, and its adsorption/elution of bismuth ions

Ryota Tanaka, Ryo Ishihara, Kazuyoshi Miyoshi, Daisuke Umeno, Kyoichi Saito, Shiho Asai, Shinsuke Yamada, Hideyuki Hirota

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A neutral extractant, tri-n-octylphosphine oxide (TOPO), was used to chemically modify a porous sheet, with a final density of 1.0 mmol/g. First, glycidyl methacrylate (GMA) was graft-polymerized onto a porous polyethylene sheet with an average pore diameter, porosity, and thickness of 1.2 μm, 75%, and 2.0 mm, respectively. Second, an octadecane thiol group was introduced into the poly-GMA graft chain. Third, TOPO was deposited on the graft chain via a hydrophobic interaction. Bismuth chloride solution (BiCl3 in 0.15 M HNO3) was forced through the pores of the TOPO-modified porous sheet. The equilibrium binding capacity for bismuth was 0.19 mmol/g. Bismuth ions bound to TOPO were quantitatively eluted with 11 M HNO3.

Original languageEnglish
Pages (from-to)986-990
Number of pages5
JournalReactive and Functional Polymers
Volume70
Issue number12
DOIs
Publication statusPublished - 2010 Dec
Externally publishedYes

Keywords

  • Bismuth ions
  • Modification
  • Porous sheet
  • Radiation-induced graft polymerization
  • TOPO

ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry
  • Biochemistry
  • Chemical Engineering(all)
  • Polymers and Plastics
  • Materials Chemistry

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