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• W4283375101 endingPage "10100" @default.
• W4283375101 startingPage "10091" @default.
• W4283375101 abstract "Radioactive U(VI) in nuclear wastewater is a global environmental pollutant that poses a great threat to human health. Therefore, it is of great significance to develop a U(VI) sensor with desirable sensitivity and selectivity. Inspired by electron-donating group modification for enhancement of binding affinity toward U(VI), we report an amine group functionalization of UiO-66-NH2, using a low-cost, environmentally friendly, and low-temperature NH3 plasma technique as a fluorescence switching nanoprobe for highly sensitive and selective detection of U(VI). The resulting amine-functionalized UiO-66-NH2 (LTP@UiO-66-NH2) shows dramatically enhanced fluorescence emission and selective sensitivity for U(VI) on the basis of the quenching effect. The quenching efficiency increases from 58 to 80% with the same U(VI) concentration (17.63 μM) after NH3 plasma functionalization. As a result, the LTP@UiO-66-NH2 has the best Ksv (1.81 × 105 M-1, 298 K) and among the lowest LODs (0.08 μM, 19.04 ppb) compared with those reported in the literature. Intraday and interday precision and application in real environment experiments indicate stable and accurate U(VI) detection performance. Fluorescence lifetime and temperature-dependent detection experiments reveal that the quenching mechanism belongs to the static quenching interaction. The highly selective fluorescence detection is attributed to the selective binding of U(VI) by the rich functionalized amine groups of LTP@UiO-66-NH2. This work provides an efficient fluorescence probe for highly sensitive U(VI) detection in water, and a new strategy of tailored plasma functionalization for developing a practical MOF sensor platform for enhanced fluorescence emission, sensitivity, and selectivity for detecting trace amounts of radioactive species in the environment." @default.
• W4283375101 created "2022-06-25" @default.
• W4283375101 creator A5006250732 @default.
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• W4283375101 date "2022-06-23" @default.
• W4283375101 modified "2023-10-16" @default.
• W4283375101 title "NH₃ Plasma Functionalization of UiO-66-NH₂ for Highly Enhanced Selective Fluorescence Detection of U(VI) in Water" @default.
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• W4283375101 doi "https://doi.org/10.1021/acs.analchem.2c01138" @default.
• W4283375101 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/35737958" @default.
• W4283375101 hasPublicationYear "2022" @default.
• W4283375101 type Work @default.
• W4283375101 citedByCount "18" @default.

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