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Article Abstract
Here, we have demonstrated a terbium(III)-organic framework ([Tb(HBTC)(BTC)(HO)]·4HO, denoted as ) synthesized from 1,2,4,5-benzenetetracarboxylic acid (HBTC) and TbCl·6HO under hydrothermal conditions. Notably, exhibits a highly efficient uranyl sensing capability in complex natural water systems such as lake water and seawater, featuring high sensitivity ( = 1.13 × 10 and 1.06 × 10 M, respectively), ultralow limit of detection (LOD = 17.47 and 18.62 nM, respectively) and excellent anti-interference ability. FTIR and XPS analyses revealed that uranyl ions coordinate with the free -COOH groups on the HBTC ligand. Density functional theory (DFT) calculations unveiled that photoelectron transfer from HBTC to UO causes luminescence quenching of .
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| http://dx.doi.org/10.1021/acs.inorgchem.5c01966 | DOI Listing |
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