An Acylhydrazone Fluorescent Sensor: Bifunctional Detection of Thorium (IV) and Vanadyl Ions over Uranyl and Lanthanide Ions DOI Open Access
Lin Xin, Hua Liang,

Ke Dai

и другие.

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(7), С. 3231 - 3231

Опубликована: Март 31, 2025

Thorium is a notable candidate for resolving uranium shortage caused by the global application of nuclear power generation. Uranium extraction from seawater another attempt to handle its source deficiency, however, vanadium one main competitive elements in that process. Exploration probes which can discriminatively detect thorium and has primary significance their further separation environmental protection. Herein, N′-(2,4-dihydroxybenzylidene)-4-hydroxylphenylhydrazide, AOH, used as sensor Th4+ vanadyl (VO2+) determination. AOH demonstrates specific “turn-on” fluorescence selectivity towards over f-block other foreign metal ions, with detection limit (LOD) 7.19 nM acidic solution binding constant 9.97 × 109 M−2. Meanwhile, it shows “turn-off” response VO2+ ions at coexistence Th4+, LOD 0.386 μM same media 4.54 104 M−1. The recognition mechanism, based on HRMS, 1H NMR, FT-IR results, causes quenching replacing coordinate AOH. In real water tests, exhibited satisfying recoveries. These findings expand sensors nuclide pollution control.

Язык: Английский

An Acylhydrazone Fluorescent Sensor: Bifunctional Detection of Thorium (IV) and Vanadyl Ions over Uranyl and Lanthanide Ions DOI Open Access
Lin Xin, Hua Liang,

Ke Dai

и другие.

International Journal of Molecular Sciences, Год журнала: 2025, Номер 26(7), С. 3231 - 3231

Опубликована: Март 31, 2025

Thorium is a notable candidate for resolving uranium shortage caused by the global application of nuclear power generation. Uranium extraction from seawater another attempt to handle its source deficiency, however, vanadium one main competitive elements in that process. Exploration probes which can discriminatively detect thorium and has primary significance their further separation environmental protection. Herein, N′-(2,4-dihydroxybenzylidene)-4-hydroxylphenylhydrazide, AOH, used as sensor Th4+ vanadyl (VO2+) determination. AOH demonstrates specific “turn-on” fluorescence selectivity towards over f-block other foreign metal ions, with detection limit (LOD) 7.19 nM acidic solution binding constant 9.97 × 109 M−2. Meanwhile, it shows “turn-off” response VO2+ ions at coexistence Th4+, LOD 0.386 μM same media 4.54 104 M−1. The recognition mechanism, based on HRMS, 1H NMR, FT-IR results, causes quenching replacing coordinate AOH. In real water tests, exhibited satisfying recoveries. These findings expand sensors nuclide pollution control.

Язык: Английский

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