Iodine adsorbent, method for producing iodine adsorbent, water treatment tank, and iodine adsorption system

摘要

An iodine adsorbent includes a carrier that is a compound containing silicon, an organic group bonded to the carrier, and silver. The organic group has, at the terminal, a functional group represented by S or SR. The silver is bonded to sulfur in S or SR. The R is a hydrogen atom or a substituent containing a hydrocarbon. Where the element ratio of sulfur in the adsorbent to silicon in the adsorbent is MS/MSi, MS/(MSi·A), a value obtained by dividing the element ratio by a specific surface area A (m2/g) of the carrier, is 2.4×104 g/m2MS/(MSi·A)2.7×104 g/m2.