| abstract |
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 M S /M Si , M S /(M Si ·A), a value obtained by dividing the element ratio by a specific surface area A (m 2 /g) of the carrier, is 2.4×10 −4 g/m 2 ≦M S /(M Si ·A)≦2.7×10 −4 g/m 2 . |