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Iron(II) Immobilized within a Metal-Organic Framework Mixed-Matrix Membrane as a H 2 O 2 Turn-On Sensor.
- Source :
-
Inorganic chemistry [Inorg Chem] 2022 Feb 21; Vol. 61 (7), pp. 3103-3110. Date of Electronic Publication: 2022 Feb 08. - Publication Year :
- 2022
-
Abstract
- H <subscript>2</subscript> O <subscript>2</subscript> detection is closely relevant to human health; however, most of the H <subscript>2</subscript> O <subscript>2</subscript> probes suffer from low accuracy and sensitivity because of the aggregating nature of solid sensors. In contrast, a mixed-matrix membrane (MMM) with high processability and flexibility is a suitable H <subscript>2</subscript> O <subscript>2</subscript> probe to overcome these drawbacks. Herein, we fabricated MOF-based MMMs by using a robust UiO-66-(COOH) <subscript>2</subscript> with carboxylate-chelating moieties, which were utilized for binding Fe (II) metal centers. The Fe (II)-immobilized MOF-MMM involved in a Fenton reaction when treated with H <subscript>2</subscript> O <subscript>2</subscript> , exhibiting a fluorescence turn-on property. Compared to the bulk-state MOF powder, the MOF-MMM sensor showed much-improved sensitivity (detection limit down to 0.0215 μM) because of the uniform dispersion of the probe and a sufficient contact with the analyte. This MOF-MMM sensor combinedly exhibited a turn-on fluorescence response and outstanding sensing properties with flexibility and processability, providing a novel platform suitable for practical sensing applications.
Details
- Language :
- English
- ISSN :
- 1520-510X
- Volume :
- 61
- Issue :
- 7
- Database :
- MEDLINE
- Journal :
- Inorganic chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 35132853
- Full Text :
- https://doi.org/10.1021/acs.inorgchem.1c03339