A new composite of crystalline silicotitanate for sequestration of 137Cs and 90Sr from low-level aqueous waste solution

被引：4
作者：
Kamble, Priyanka [1 ]
Roy, Prithwish Sinha [1 ,2 ]
Banerjee, Dayamoy [1 ,2 ]
Ananthanarayanan, Arvind [2 ]
Shah, Jayesh G. [2 ]
Sugilal, Gopalakrishnan [1 ,2 ]
Agarwal, Kailash [2 ]
机构：
[1] Homi Bhabha Natl Inst, Mumbai, Maharashtra, India
[2] Bhabha Atom Res Ctr, Nucl Recycle Grp, Mumbai, Maharashtra, India
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2020年 / 55卷 / 09期
关键词：
Crystalline silicotitanate; composite; Cs; Sr; removal; separation; low-level waste; ION-EXCHANGE PROPERTIES; CESIUM; TITANOSILICATE; STRONTIUM; REMOVAL;
D O I：
10.1080/01496395.2019.1605382
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new composite of crystalline silicotitanate (CST) has been synthesized for the sequestration of Cs and Sr from low-level liquid waste generated in the nuclear industry. The product characterization using X-RAY DEFRACTION (XRD) and Fourier-transform infrared spectroscopy (FTIR) confirmed the presence of CST crystals in the composite. Sorption studies carried out under various test conditions showed that the composite has high affinity for both Cs and Sr. Results of structural characterization of Cs and Sr-loaded CST indicated that the overall structural integrity remained intact after substitution of Na+ by Cs+ or Sr2+. The exceedingly good Cs and Sr sorption performance displayed by the CST composite will find applications in the treatment of nuclear waste.
引用
收藏
页码：1603 / 1610
页数：8
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