DataVXAdvanced MaterialsPaper
journal article·2025-04Open access

Constructing Biomimetic Nanochannels for High‐Capacity Capture of Uranyl Tricarbonate Complex Ions

Doudou Cao, Fengchao Cui, Cheng Zhang, Yajie Yang, Jiarui Cao, Yingbo Song, Yue Zheng, Liping Wen, Xiangyu Kong, Hongjuan Ma, Shusen Chen, Yan Song, Fengju Wang, Guangshan Zhu, Ye Yuan

Advanced Materials· Volume 37· Issue 17
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Source abstract

Abstract

Abstract Biomimetic nanochannels enable fast and selective transport of mononuclear metal ions; however, their construction for complex ion transport remains in its infancy due to the nonuniform charge distribution and large geometric dimensions of coordination compounds. Herein, an ionic electrostatic interaction template strategy is proposed to prepare biomimetic channels for the capture of complex ions. Using the [UO2(CO3)3]4− ion as a template, various quaternary ammonium monomers with lengths of 6.2−8.4 Å are decorated on 1D porous channels of the TpBDOH framework via the Williamson ether reaction. Accordingly, the pore size is modulated in the sub‐nanometer range of 9−13 Å, facilitating multiple electrostatic attractions between quaternary ammonium fragments and the three equatorial carbonate ions on the [UO2(CO3)3]4− ion. The unique structure enabled highly efficient uranium adsorption with a capacity of 501.5 mg g−1 and a high selectivity coefficient for uranium over vanadium of >163.1. The resulting electropositive nanochannels selectively captured [UO2(CO3)3]4− ions from natural seawater, achieving a high uptake of 25.3 mg g−1 in 35 days.
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Research context

Nanomaterials

OpenAlex topics: Radioactive element chemistry and processing · Chemical Synthesis and Characterization · Covalent Organic Framework Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Faculty of Chemistry Northeast Normal University Changchun 130024 China

Key Laboratory of Automobile Materials of Ministry of Education & School of Materials Science and Engineering Jilin University Changchun 130022 China

Technical Institute of Physics and Chemistry Chinese Academy of Science Zhongguancun East Road Being 100190 China

Shanghai Applied Radiation Institute School of Environmental and Chemical Engineering Shanghai Nanchen Road Shanghai 200444 China

Beijing Research Institute of Chemical Engineering and Metallurgy CNNC Key Laboratory on Uranium Extraction from Seawater Beijing 101149 China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Fundamental Research Funds for the Central Universities

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