不溶性フェロシアン化物担持繊維のセシウム吸着容量に及ぼすセシウム水溶液の塩濃度の効果

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タイトル別名
  • Effect of Salt Concentration of Cesium Solution on Cesium-Binding Capacity of Potassium Cobalt-Hexacyanoferrate-Impregnated Fiber
  • フヨウセイ フェロシアンカブツタンジセンイ ノ セシウム キュウチャク ヨウリョウ ニ オヨボス セシウム スイヨウエキ ノ シオ ノウド ノ コウカ

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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.

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