Origin of the exceptional selectivity of NaA zeolite for the radioactive isotope ⁹⁰Sr²⁺

Abstract

In this work, we reported an exceptionally high selectivity of NaA zeolite (the framework type code of LTA assigned by the Structure Commission of the International Zeolite Association) towards radioactive...

Synthesis of a low-silica CHA zeolite with exceptional selectivity for radioactive137Cs+

“…33 Zeolites possess characteristics of high adsorption/ion-exchange capacity, excellent thermal, mechanical, and radiation stability, low price, and good compatibility with the cement matrix and are considered as the ideal candidates for the treatment of nuclear wastes. 34,35 The adsorption/ion-exchange capacity of zeolites depends on the structure type, the pore diameter, and the Si/Al ratio of zeolites. 36 To date, zeolites with framework type codes of LTA , 37 GIS , 38 CHA , 39 MOR , 40 FAU , 41 MFI , 42 and *BEA 42 have been investigated to remove radionuclides.…”