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Multifunctional Ln-MOF luminescent probe displaying superior capabilities for highly selective sensing of Fe3+ and Al3+ ions and nitrotoluene.
- Source :
-
Colloids & Surfaces A: Physicochemical & Engineering Aspects . Jan2020, Vol. 585, pN.PAG-N.PAG. 1p. - Publication Year :
- 2020
-
Abstract
- A pillar-like 3D lanthanide-organic framework (Eu-MOF) with opposite chirality was assembled according to previous report and fully characterized. The Eu-MOF exhibits excellent luminescence and structural stability in the aqueous solution or other organic solvents and good pH-independent luminescence stability in the pH range of 3–12. It is important to point out that the as-synthesized Eu-MOF can be developed as a highly selective and sensitive luminescent probe to rapidly detect Fe3+ (detection limit, 0.39 μM) and Al3+ (detection limit, 0.084 μM) from mixed metal ions, which can be explained by different response mechanisms and the color change are visible to the naked eyes under UV-lamp. In addition, it also exhibits highly sensitive for nitrobenzene (NB) (detection limit, 0.013 μM). Considering the obvious spectral response and low limit detection, the Eu-MOF can be employed as a promising multi-functional luminescent sensor for sensing metal ions and small organic molecules in the future. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LUMINESCENT probes
*DETECTION limit
*SPECTRAL sensitivity
*METAL ions
Subjects
Details
- Language :
- English
- ISSN :
- 09277757
- Volume :
- 585
- Database :
- Academic Search Index
- Journal :
- Colloids & Surfaces A: Physicochemical & Engineering Aspects
- Publication Type :
- Academic Journal
- Accession number :
- 141604960
- Full Text :
- https://doi.org/10.1016/j.colsurfa.2019.124094