Abstract
I-129 is a hazardous fission product due to its long half life and ability to bioaccumulate. Silver mordenite has been studied for the removal of I-129 because of its hydrothermal stability arising from a high Si/Al ratio which subsequently limits its silver loading and iodine capacity. Titanosilicate ETS-10 and the sodium nanotitanate ETS-2 were exchanged to over 35 wt % silver and exposed to saturated iodine vapour at 80 °C under dry and humid conditions. The results indicate that the silver on these materials is reactive toward iodine and that the majority of the silver ions are utilized.
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