Incorporation of iodate into uranyl borates and its implication for the immobilization of 129I in nuclear waste repositories
Incorporation of iodate into uranyl borates and its implication for the immobilization of 129I in nuclear waste repositories
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将碘酸盐掺入硼酸铀及其对核废料储存库中 129I 固定化的影响
DOI：
10.1524/ract.2011.1864
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发表时间：
2011
影响因子：
3.3
通讯作者：
T. Albrecht‐Schmitt
中科院分区：
文献类型：
--
作者：
Shijun Wu;Shuao Wang;A. Simonetti;Fanrong Chen;T. Albrecht‐Schmitt
本文报道了一系列不同拓扑结构的铀酰硼酸盐UO_2B_2O_4、Na[（UO_2）B_6O_（10）（OH）]_3·2H_2O和K_2 [（UO_2）_2B_12O_（19）（OH）_4]·0.3H_2O的制备和掺入试验。采用激光烧蚀等离子体质谱法测定了三种硼酸铀酰单晶中碘的含量。在碘酸盐存在下合成的晶体中，碘水平可大于3200 ppm。碘酸的插层是这些固体中碘酸盐吸收的一种可能机制。
Abstract A series of uranyl borates, UO2B2O4, Na[(UO2)B6O10(OH)]3· 2H2O, and K2[(UO2)2B12O19(OH)4]·0.3H2O, with different topologies have been prepared and tested for the incorporation of iodate, one of the chemical forms that 129I should have in nuclear waste. Laser ablation ICP-MS was used to determine the iodine content in single crystals of the three different uranyl borates. Iodine levels can be greater than 3200 ppm in crystals synthesized in the presence of iodate. The intercalation of iodic acid is one possible mechanism for iodate uptake in these solids.