Boehmite Supported Pyrene Polyamine Systems as Probes for Iodide Recognition

被引：40

作者：

Carbonell, Esther ^{[1
]}

Delgado-Pinar, Estefania ^{[1
]}

Pitarch-Jarque, Javier ^{[1
]}

Alarcon, Javier ^{[2
]}

Garcia-Espana, Enrique ^{[1
]}

机构：

[1] Univ Valencia, Inst Ciencia Mol ICMOL, Dept Quim Inorgan, Valencia 46980, Spain

[2] Univ Valencia, Dept Quim Inorgan, E-46100 Valencia, Spain

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2013年 / 117卷 / 27期

关键词：

FLUORESCENT CHEMOSENSORS; SILICA NANOPARTICLES; QUANTUM YIELDS; ANION-BINDING; EQUILIBRIA; CHEMISTRY; EXCIMER; BEARING; SENSORS;

D O I：

10.1021/jp4032546

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New organic-inorganic fluorescent probes made by attaching the tripodal polyamine (tris(2-aminoethyl))amine (tren), propylamine, or diethylenetriamine functionalized with pyrene as a fluorophore to an gamma-aluminum oxohydroxide matrix have been prepared and studied both in solution and supported on the surface of boehmite nano-particles. Both kinds of systems have been revealed as sensitive and selective fluorescence turn-off chemosensors for iodide in aqueous solution with an estimated detection limit that reaches 36 ppb. The recognition characteristics and photophysical properties of these molecules are essentially preserved when they are grafted to the surface of the particles. Since the nanoparticles are stable over a wide pH window and they can be easily recovered by centrifugation and filtration, these systems present the advantage that can be repeatedly used for the detection of iodide.

引用

页码：14325 / 14331

页数：7

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