A highly efficient coordination polymer for selective trapping and sensing of perrhenate/pertechnetate

Cheng-Peng Li, Hang Zhou, Jing Chen, Jia-Jun Wang, Miao Du, Wuzong Zhou

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)
4 Downloads (Pure)

Abstract

A porous cationic Ag(I) coordination polymer, [Ag(1,2,4,5-p4b)](SbF6) (TJNU-302) with the ligand 1,2,4,5-p4b (1,2,4,5-tetra(pyridin-4-yl)benzene), is reported that shows high sorption capacity (211 mg g–1) and distribution coefficient Kd (5.8 × 105 mL g–1) as well as outstanding selectivity in 500 times excess of CO32– or PO43– anion for perrhenate removal. TJNU-302 can act as a crystalline turn-off sensor for perrhenate upon UV radiation. In this way, a test paper strip for sensing ReO4 could be produced. In water solution, TJNU-302 shows an efficient fluorescence quenching response to ReO4 ion, with the highest quenching percentage (86%) among all reported ReO4 sensors. These results could be elucidated by the bonding properties of single-crystal structures of TJNU-302 before and after perrhenate sorption, as well as density functional theory (DFT) calculations.
Original languageEnglish
Pages (from-to)15246-15254
JournalACS Applied Materials & Interfaces
Volume12
Issue number13
Early online date17 Mar 2020
DOIs
Publication statusPublished - 1 Apr 2020

Keywords

  • Coordination polymers
  • Perrhenate/pertechnetate
  • Anion exchange
  • Fluorescence sensor
  • Test paper

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