Selective removal of cesium and strontium using porous frameworks from high level nuclear waste

被引：161

作者：

Aguila, Briana ^{[1
,2
]}

Banerjee, Debasis ^{[1
]}

Nie, Zimin ^{[3
]}

Shin, Yongsoon ^{[1
]}

Ma, Shengqian ^{[2
]}

Thallapally, Praveen K. ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA

[2] Univ S Florida, Dept Chem, Tampa, FL 33620 USA

[3] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 35期

关键词：

METAL-ORGANIC FRAMEWORKS; RESIN; WATER; CS;

D O I：

10.1039/c6cc00843g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Efficient and cost-effective removal of radioactive Cs-137 and Sr-90 found in spent fuel is an important step for safe, long-term storage of nuclear waste. Solid-state materials such as resins and titanosilicate zeolites have been assessed for the removal of Cs and Sr from aqueous solutions, but there is room for improvement in terms of capacity and selectivity. Herein, we report the Cs+ and Sr2+ exchange potential of an ultra stable MOF, namely, MIL-101-SO3H, as a function of different contact times, concentrations, pH levels, and in the presence of competing ions. Our preliminary results suggest that MOFs with suitable ion exchange groups can be promising alternate materials for cesium and strontium removal.

引用

页码：5940 / 5942

页数：3

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