A Salen-based covalent organic polymer as highly selective and sensitive fluorescent sensor for detection of Al3+, Fe3+ and Cu2+ ions
Source abstract
Abstract
A novel covalent organic polymer (Salen-COP) based on Salen-type Schiff base was synthesized by one-pot protocol involving the self-condensation of 3-formyl-4-hydroxyphenylboronic acid and the subsequent aldehyde–amine condensation with benzene-1,2-diamine. The Salen-COP was characterized by 13C CP/MAS NMR, Fourier transform infrared spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and X-ray powder diffraction spectrometry analysis. The morphological features of Salen-COP were also analyzed using scanning electron microscopy. The Salen-COP exhibited the significant fluorescence enhancing for the sensing of Al3+, while the obtained polymer also exhibited the dramatic fluorescence quenching for the sensing of Fe3+ and Cu2+. The detection limits were calculated to be 0.248 µM for Salen-COP@Al3+, 0.545 µM for Salen-COP@Fe3+ and 0.140 µM for Salen-COP@Cu2+, respectively. Furthermore, the Salen-COP was founded to be a reversible chemosensor for Al3+, Fe3+ and Cu2+ ions, which provided a unique opportunity in the development of multi-response polymer-based sensors.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Covalent Organic Framework Applications · Molecular Sensors and Ion Detection · Luminescence and Fluorescent Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
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