Study for the Formation of Sponge-like Ion Exchanger Containing Sodium-form Synthetic Mica and Its Cesium Adsorption Characteristics

As an adsorbing material for recovering cesium from radioactive contaminated water, a sponge-like compound was synthesized using sodium-form synthetic mica (Na-TSM) as an ion exchanger which does not contain lithium and is inexpensive and readily available. The cesium adsorption ratio from aqueous solutions was 80% or higher in low cesium concentration region and the desorption ratio was less than 5%. It suggests that synthesized sponge-like material is much adapted as cesium adsorbent.