Novel synthesis of bismuth-based adsorbents for the removal of I-129 in off-gas

New adsorbents based on bismuth were investigated for the capture of iodine-129 (I-129) in off-gas produced from spent fuel reprocessing. Porous bulky materials were synthesized with polyvinyl alcohol (PVA) as a sacrificial template. Our findings showed that the iodine trapping capacity of as-synthesized samples could reach 1.9-fold that of commercial silver-exchanged zeolite (AgX). The thermodynamic stability of the reaction products explains the high removal efficiency of iodine. We also found that the pore volume of each sample was closely related to the ratio of the reaction products.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2015-02
Language
ENG
Citation

JOURNAL OF NUCLEAR MATERIALS, v.457, pp.1 - 8

ISSN
0022-3115
DOI
10.1016/j.jnucmat.2014.09.057
URI
http://hdl.handle.net/10203/195553
Appears in Collection
NE-Journal Papers(저널논문)
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