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author：

Zhao, Y.-Y. (Zhao, Y.-Y..) [1] | Sun, H.-Y. (Sun, H.-Y..) [2] | Wei, C. (Wei, C..) [3] | Pan, T.-Y. (Pan, T.-Y..) [4] | Yang, L. (Yang, L..) [5] | Feng, M.-L. (Feng, M.-L..) [6] | Huang, X.-Y. (Huang, X.-Y..) [7]

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Abstract：

The　highly　selective　capture　of　137Cs+　from　complex　solutions　is　still　challenging　because　of　its　high　solubility,　easy　mobility,　and　the　influence　of　interfering　ions.　Here,　a　reliable　strategy　is　demonstrated　for　specific　Cs+　ion　recognition　and　separation　through　constructing　the　confined　space　as　an　“ion　lock”　in　the　microporous　framework.　A　new　3D　microporous　indium　oxalatophosphate　with　the　highly　selective　Cs+　capture,　namely　[Me2NH2]1.5[In2(PO4)0.5(H2PO4)(HPO4)1.5(C2O4)]　(FJSM-NINPC)　is　prepared.　FJSM-NINPC　with　excellent　radiation　resistance　shows　ultra-fast　kinetics　(high　removal　rate　of　97.63%　within　1 min)　and　high　adsorption　capacity　of　268.12 mg　g−1　for　Cs+.　It　can　highly　selectively　capture　Cs+　under　excessive　competitive　ions　and　even　in　environmental　water　samples.　Furthermore,　the　ion　exchange　column　filled　with　FJSM-NINPC　can　quickly　separate　and　recover　Cs+　from　mixed　Cs+　and　Sr2+　solution　(separation　factor　SFCs/Sr　=　249.17).　Moreover,　single　crystal　structure　analysis　combined　with　density　functional　theory　calculations　confirms　that　Cs+　ions　are　“encapsulated”　in　channels　of　FJSM-NINPC　by　the　suitable　spatial　confinement　and　with　strong　Cs···O　interactions.　This　work　not　only　provides　an　unprecedented　microporous　metal　oxalatophosphate　with　high　Cs+　selectivity　but　clearly　reveals　the　Cs+　capture　mechanism　and　structure-function　relationship　of　microporous　materials　for　radionuclides　remediation.　©　2025　Wiley-VCH　GmbH.

Keyword：

cesium ion exchange ion lock metal oxalatophosphate selectivity

Community：

  • [ 1 ] [Zhao Y.-Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 2 ] [Zhao Y.-Y.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
  • [ 3 ] [Zhao Y.-Y.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 4 ] [Sun H.-Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 5 ] [Sun H.-Y.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 6 ] [Sun H.-Y.]Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fujian, Fuzhou, 350108, China
  • [ 7 ] [Wei C.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 8 ] [Wei C.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 9 ] [Wei C.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 10 ] [Pan T.-Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 11 ] [Pan T.-Y.]College of Chemistry, Fuzhou University, Fujian, Fuzhou, 350116, China
  • [ 12 ] [Pan T.-Y.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 13 ] [Yang L.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 14 ] [Yang L.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 15 ] [Yang L.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 16 ] [Feng M.-L.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 17 ] [Feng M.-L.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 18 ] [Feng M.-L.]University of Chinese Academy of Sciences, Beijing, 100049, China
  • [ 19 ] [Huang X.-Y.]State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou, 350002, China
  • [ 20 ] [Huang X.-Y.]Fujian College, University of Chinese Academy of Sciences, Fuzhou, 350002, China
  • [ 21 ] [Huang X.-Y.]University of Chinese Academy of Sciences, Beijing, 100049, China

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Advanced Functional Materials

ISSN： 1616-301X

Year： 2025

1 8 . 5 0 0

JCR@2023

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30 Days PV： 1

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