Efficient Sr-90 removal from highly alkaline solution by an ultrastable crystalline zirconium phosphonate

Jiarong Zhang; Long Chen; Xing Dai; Lixi Chen; Fuwan Zhai; Weifeng Yu; Shikai Guo; Lijiang Yang; Lanhua Chen; Yugang Zhang; Linwei He; Changlun Chen; Zhifang Chai; Shuao Wang

doi:10.1039/D1CC02446A

Efficient Sr-90 removal from highly alkaline solution by an ultrastable crystalline zirconium phosphonate†

Jiarong Zhang,‡^ab Long Chen,‡^c Xing Dai,^c Lixi Chen,^c Fuwan Zhai,^c Weifeng Yu,^d Shikai Guo,^d Lijiang Yang,^d Lanhua Chen,^c Yugang Zhang,^c Linwei He,^c Changlun Chen,

*^ab Zhifang Chai^c and Shuao Wang

*^c

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* Corresponding authors

^a Institute of Plasma Physics, HFIPS, Chinese Academy of Sciences, P.O. Box 1126, Hefei 230031, P. R. China
E-mail: clchen@ipp.ac.cn

^b University of Science and Technology of China, Hefei 230026, P. R. China

^c State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X) and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
E-mail: shuaowang@suda.edu.cn

^d The 404 Company Limited China National Nuclear Corporation, Jiayuguan 735100, China

Abstract

We report here a distinct case of strontium removal under 1 M NaOH solution by an ultrastable crystalline zirconium phosphonate framework (SZ-7) with high adsorption capacity (183 mg g⁻¹) and in-depth removal performance (K_d = 3.9 × 10⁵ mL g⁻¹), demonstrating the potential application of SZ-7 for ⁹⁰Sr removal in highly alkaline nuclear waste.

Chemical Communications

Efficient Sr-90 removal from highly alkaline solution by an ultrastable crystalline zirconium phosphonate†

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Efficient Sr-90 removal from highly alkaline solution by an ultrastable crystalline zirconium phosphonate

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