Selective removal of Cr2O72− in aqueous solution by nonporous pure crystals of cucurbit[6]uril

Jing Xu; Bin Li; Xiu-Du Zhang; Dong Wu; Jiang-Lin Zhao; Kai Chen

doi:10.1039/D4DT00611A

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Selective removal of Cr₂O₇²⁻ in aqueous solution by nonporous pure crystals of cucurbit[6]uril†

Jing Xu,

^a Bin Li,^a Xiu-Du Zhang,

*^b Dong Wu,*^c Jiang-Lin Zhao^d and Kai Chen

*^a

Author affiliations

* Corresponding authors

^a Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
E-mail: catqchen@163.com

^b College of Chemistry and Materials Science, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, Anhui Key Laboratory of Functional Molecular Solids, Anhui Normal University, 189 Jiuhua Southern Road, Wuhu 241002, China

^c Computer Aided Drug Discovery Center, Zhuhai Institute of Advanced Technology, Chinese Academy of Sciences, Zhuhai 519003, China
E-mail: wudong@ziat.ac.cn

^d Precision Medicine R&D Center, Zhuhai Institute of Advanced Technology, Chinese Academy of Sciences, Zhuhai 519080, Guangdong, China

Abstract

Cucurbit[6]uril (Q[6]) could serve as a selective absorbent for the toxic anion Cr₂O₇²⁻, which was demonstrated by the results of UV-vis, ICP, XPS, SEM, and EDS experiments. Single-crystal X-ray diffraction analysis revealed that capture capacity could be attributed to the outer-surface interactions of cucurbit[n]uril between Cr₂O₇²⁻ and the outer surface of Q[6].

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Article information

DOI: https://doi.org/10.1039/D4DT00611A
Article type: Communication
Submitted: 29 Feb 2024
Accepted: 07 Mar 2024
First published: 07 Mar 2024

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Dalton Trans., 2024,53, 6168-6172

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Selective removal of Cr₂O₇²⁻ in aqueous solution by nonporous pure crystals of cucurbit[6]uril

J. Xu, B. Li, X. Zhang, D. Wu, J. Zhao and K. Chen, Dalton Trans., 2024, 53, 6168 DOI: 10.1039/D4DT00611A

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