Effect of salt concentration of cesium solution on cesium-binding capacity of potassium cobalt-hexacyanoferrate-impregnated fiber

Yuya Hirayama, Yusuke Okamura, Kunio Fujiwara, Takanobu Sugo, Daisuke Umeno, Kyoichi Saito

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Potassium cobalt-hexacyanoferrate (KCoFC)-impregnated fibers were prepared by radiation-induced cografting of vinylbenzyltrimethylammonium chloride (VBTAC) and N-vinyl-2-pyrrolidone (NVP) and subsequent chemical modifications. A 10 mg-Cs/L cesium chloride solution with various sodium chloride concentrations up to 0.5 M was forced to flow through the KCoFC-fiber-packed bed to acquire a breakthrough curve. The dynamic binding capacity of the bed for cesium with 0.5 M sodium chloride was 30-fold higher than that without sodium chloride. The adsorption isotherm of the KCoFC fiber for cesium ions in seawater was correlated using the Langmuir equation with a saturation capacity of 20 mg-Cs/g-dry.

Original languageEnglish
Pages (from-to)28-32
Number of pages5
Journalkagaku kogaku ronbunshu
Volume39
Issue number1
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Cesium ion adsorption
  • Dynamic binding capacity
  • Potassium cobalt-hexacyanoferrate
  • Radiation-induced graft polymerization
  • Salt concentration dependence

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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