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  • Title: Selectivity of cesium from fission radionuclides using resorcinol-formaldehyde and zirconyl-molybdopyrophosphate as ion-exchangers.
    Author: Shady SA.
    Journal: J Hazard Mater; 2009 Aug 15; 167(1-3):947-52. PubMed ID: 19303707.
    Abstract:
    Two ion-exchangers, the first is organic in nature and the other is inorganic named as resorcinol-formaldehyde (R-F) and zirconyl-molybdopyrophosphate (ZMPP) were synthesized and applied to decontaminate some fission radionuclides from radioactive waste streams. The distribution coefficients of the studied radionuclides for the two ion-exchanges at varying pH conditions are evaluated and the data showed that the selectivity sequence of resorcinol-formaldehyde for the studied cations is Cs(+)>Co(2+)>Eu(3+)>Zn(2+) which is the same sequence of zirconyl-molybdopyrophosphate while as the X-ray diffraction characterization showed that resorcinol-formaldehyde resin is an amorphous material but zirconyl-molybdopyrophosphate is a semicrystalline one and both of resorcinol-formaldehyde and zirconyl-molybdopyrophosphate are considered as promising materials specially for the decontamination of cesium from radioactive waste solutions.
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