Substitutional Disorder of SeO32-/IO3- in the Crystalline Solid Matrix: Insights into the Fate of Radionuclides Se-79 and I-129 in the Environment

doi:10.1021/acs.inorgchem.7b00236

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Substitutional Disorder of SeO32-/IO3- in the Crystalline Solid Matrix: Insights into the Fate of Radionuclides Se-79 and I-129 in the Environment
	Wang, YX; Wang, YM; Zhang, LJ; Chen, LH; Liu, ZY; Yin, XM; Sheng, DP; Diwu, J; Wang, JQ; Liu, N; Chai, ZF; Wang, S
	2017
发表期刊	INORGANIC CHEMISTRY
ISSN	0020-1669
卷号	56 期号:6 页码:3702-3708
文章类型	期刊论文
摘要	As the crucial soluble species of long-lived radionuclides 1291 and 79Se, iodate and selenite anions commonly share similar geometry of the trigonal pyramid XO3 (X = I, Se) but in different valence states. Although large amounts of investigations have been performed aiming at understanding the environmental behavior of these two anions individually, studies on cases when they coexist are extremely scarce. Structurally well-characterized natural/synthetic crystalline solids simultaneously incorporating these two anions as potential solubility-limiting products at the nuclear waste geological depository remain elusive. We report here a crystalline solid Th(IO3)(2)(Seo(3)) representing the first example of aliovalent substitution between IO3- and SeO32- sharing the same structural site, as demonstrated by single crystal X-ray diffraction, laser-ablation inductively coupled plasma mass spectrometry analysis, and spectroscopic techniques including infrared, Raman, and X-ray absorption spectroscopies. Sequentially, in the Eu(IO3)(3) solid matrix, we demonstrated that the IO3- site can be sufficiently substituted by SeO32- in the presence of Th4+ via simultaneous incorporation of Th4+ and SeO32- in a charge-balancing mechanism The obtained results provide insights into the environmental behavior of fission products Se-79 and I-129: they may cocrystallize in one solid matrix and may be efficiently immobilized by incorporation into each other's solid phase through solid solution.
DOI	10.1021/acs.inorgchem.7b00236
收录类别	SCI
语种	英语
WOS记录号	WOS:000397171100067
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/27458
专题	中科院上海应用物理研究所2011-2018年
推荐引用方式 GB/T 7714	Wang, YX,Wang, YM,Zhang, LJ,et al. Substitutional Disorder of SeO32-/IO3- in the Crystalline Solid Matrix: Insights into the Fate of Radionuclides Se-79 and I-129 in the Environment[J]. INORGANIC CHEMISTRY,2017,56(6):3702-3708.
APA	Wang, YX.,Wang, YM.,Zhang, LJ.,Chen, LH.,Liu, ZY.,...&Wang, S.(2017).Substitutional Disorder of SeO32-/IO3- in the Crystalline Solid Matrix: Insights into the Fate of Radionuclides Se-79 and I-129 in the Environment.INORGANIC CHEMISTRY,56(6),3702-3708.
MLA	Wang, YX,et al."Substitutional Disorder of SeO32-/IO3- in the Crystalline Solid Matrix: Insights into the Fate of Radionuclides Se-79 and I-129 in the Environment".INORGANIC CHEMISTRY 56.6(2017):3702-3708.

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