A rare potassium-rich zirconium fluorophosphonate with high Eu3+ adsorption capacities from acidic solutions

Jiarong Zhang; Long Chen; Lanhua Chen; Lei Chen; Yugang Zhang; Changlun Chen; Zhifang Chai; Shuao Wang

doi:10.1039/D2DT01291J

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A rare potassium-rich zirconium fluorophosphonate with high Eu³⁺ adsorption capacities from acidic solutions†

Jiarong Zhang,‡^abc Long Chen,

‡^c Lanhua Chen,^c Lei Chen,^c Yugang Zhang,^c Changlun Chen,

*^ab Zhifang Chai^c and Shuao Wang

*^c

Author affiliations

* 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

Abstract

A novel 3D potassium-containing zirconium fluorophosphonate K₂Zr[CH₂(PO₃)₂]F₂ (SZ-8) was successfully synthesized as single crystals via a solvothermal method using a mixture of nitric acid and potassium nitrate as mineralizers. SZ-8 can adsorb 110.6 and 57 mg g⁻¹ of Eu³⁺ in pH 2 and pH 1 solutions respectively, highlighting its potential remediation for radionuclides with high charges. SZ-8 not only possesses superior Eu³⁺ removal capacity under strongly acidic conditions, but also provides a universal synthesis strategy for crystalline zirconium phosphonates with inorganic counterions.

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Article information

DOI: https://doi.org/10.1039/D2DT01291J
Article type: Communication
Submitted: 25 Apr 2022
Accepted: 24 Aug 2022
First published: 24 Aug 2022

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Dalton Trans., 2022,51, 14842-14846

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A rare potassium-rich zirconium fluorophosphonate with high Eu³⁺ adsorption capacities from acidic solutions

J. Zhang, L. Chen, L. Chen, L. Chen, Y. Zhang, C. Chen, Z. Chai and S. Wang, Dalton Trans., 2022, 51, 14842 DOI: 10.1039/D2DT01291J

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