不溶性フェロシアン化物(KNiFC)担持シリカゲルの調製およびセシウムの吸着特性  [in Japanese] Preparation of Insoluble Ferrocyanide(KNiFC)-Loaded Silica Gels and Adsorption Properties for Cesium  [in Japanese]

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Abstract

Potassium nickel hexacyanoferrate (II) (KNiFC)-loaded silica gels were prepared by successive impregnation of macro pores with Ni(NO_3)_2 and K_4Fe(CN)_6 solutions. The loading precentage of KNiFC increased with impregnation cycles, and the KNiFC precipitates uniformly dispersed in macro pores of the matrix. The uptake of Cs^+ on KNiFC-loaded silica gels attained equilibrium within 7d at batch factor of 700(cm)^3/g, and relatively large distribution coefficients of Cs^+, K_<d.Cs>, above (10)^4(cm)^3/g, were obtained even in the presence of 5M NaNO_3. The KNiFC particles were thermally decomposed above 300℃, resulting in lowering of uptake ability for Cs^+. This exchanger proved to be effective for the selective removal of radioactive cesium from waste solutions containing highly concentrated NaNO_3.

Journal

  • Bulletin of the Institute for Advanced Materials Processing, Tohoku University

    Bulletin of the Institute for Advanced Materials Processing, Tohoku University 54(1・2), 1-8, 1998-12

    東北大学素材工学研究所

Cited by:  1

Codes

  • NII Article ID (NAID)
    110000589769
  • NII NACSIS-CAT ID (NCID)
    AN10405196
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • Journal Type
    大学紀要
  • ISSN
    09194827
  • NDL Article ID
    4688747
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学) // ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL Call No.
    Z17-359
  • Data Source
    CJPref  NDL  NII-ELS  IR 
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