Selective ion exchange onto Slovakian natural zeolites in aqueous solutions

被引：15
作者：
Chmielewska, E. [1 ]
Lesny, J. [2 ]
机构：
[1] Comenius Univ, Fac Nat Sci, Bratislava 84215, Slovakia
[2] Univ Ss Cyril & Methodius, Dept Biotechnol, Trnava 91701, Slovakia
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2012年 / 293卷 / 02期
关键词：
Clinoptilolite- and mordenite-rich tuffs; Ammonium and some radioisotopes; Ion exchange; Selectivity sequence; Radioanalytical determination; Radionucleides; EQUILIBRIA; REMOVAL; WATER;
D O I：
10.1007/s10967-012-1692-3
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Ion exchange isotherms have been measured and plotted for the uptake of cesium, barium, cobalt, zinc, silver and amonium onto clinoptilolite- and mordenite-rich tuffs of Slovakian origin selectively for both the natural and near homoionic Na form as well, using the radioanalytical determination. The higher quality clinoptilolite-rich tuff has been proven to be effective for a potential radionucleides removal in native form according to the following selectivity sequence: Ag+,Ba-2,Cs+> NH4 (+)> Co2+, while parent tuff in Na exchanged variety exhibited a little different sequence according to: Ag+ > NH4 (+) > Ba2+ > Cs+. The raw and Na exchanged mordenite-rich tuffs proved subsequently more or less similar selectivity : Ag+ > Zn2+ > Cs+, Ba2+ > Co2+ and Ag+ > Zn2+.
引用
收藏
页码：535 / 543
页数：9
相关论文
共 31 条
  • [1] Thermal stability of Ag-exchanged clinoptilolite rich mineral
    Akdeniz, Y.
    Ulku, S.
    [J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2008, 94 (03) : 703 - 710
  • [2] Anielak A.M., 2005, Environ. Prot. Eng, V31, P21
  • [3] [Anonymous], STUDIES SURFACE SCI
  • [4] [Anonymous], INTRO ZEOLITE MOL SI
  • [5] Baerlocher Ch., 2007, ATLAS ZEOLITE FRAMEW, P156
  • [6] Barbalace K., 1995, PERIODIC TABLE ELEME
  • [7] Breck D., 1974, Zeolite Molecular Sieves: Structure, Chemistry and Use, P771, DOI DOI 10.1093/CHROMSCI/13.4.18A-C
  • [8] Experiments and data processing of ion exchange equilibria involving Italian natural zeolites: a review
    Caputo, Domenico
    Pepe, Francesco
    [J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2007, 105 (03) : 222 - 231
  • [9] Chelishchev NF, 1988, IONOOBMENNYE SVOISTV, P128
  • [10] Study of sorption equilibria in the systems: Water solutions of inorganic ions - clinoptilolite
    ChmielewskaHorvathova, E
    Lesny, J
    [J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-LETTERS, 1995, 201 (04): : 293 - 301
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