Structural curiosities of lanthanide (Ln)-modified bentonites analyzed by radioanalytical methods

The effects of pH and lanthanide (La, Y) concentration were investigated on the release of iron from Ca-bentonite crystal structure. XRF results revealed that during the Ca–H cation exchange procedure iron loss was not observed. In the case of lanthanide modifications, the pH has low influence, mean...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2019-12, Vol.322 (3), p.1747-1754
Main Authors: Kovács, Eszter M., Kónya, József, Nagy, Noémi M.
Format: Article
Language:English
Subjects:
Bentonite
Cation exchanging
Chemistry
Chemistry and Materials Science
Clay
Core loss
Crystal structure
Crystals
Diagnostic Radiology
Hadrons
Heavy Ions
Inorganic Chemistry
Lanthanides
Methods
Montmorillonite
Nuclear Chemistry
Nuclear energy
Nuclear Physics
Physical Chemistry
Rare earth metals
Silicates
Structure
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Summary:The effects of pH and lanthanide (La, Y) concentration were investigated on the release of iron from Ca-bentonite crystal structure. XRF results revealed that during the Ca–H cation exchange procedure iron loss was not observed. In the case of lanthanide modifications, the pH has low influence, meanwhile the concentration of lanthanide has high influence on iron loss. Thus, high amount of trivalent lanthanides cause the structural iron release.
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-019-06765-6