A turn-on fluorescent sensor for Al3+ based on a crown ether-bridged biscyanostilbene carboxylic derivative

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2025-01-06 DOI:10.1016/j.jphotochem.2025.116262

Ting Yang , Xinhui Huang , Liangbin Lin , Hongyu Guo , Fafu Yang

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Abstract

As Al³⁺ is an important ion in industry and daily life, the fluorescence sensor with high sensing selectivity and sensitivity for Al³⁺ in rapid, simple and in-situ way was always anticipated. In this work, a “turn-on” fluorescence sensor (CBC) based on a crown ether-bridged biscyanostilbene carboxylic derivative exhibited excellent fluorescence response for Al³⁺ with obvious fluorescence change from dark blue to bright blue-green color. The high sensing selectivity for Al³⁺ was observed among 28 kinds of metallic cations and anions. The detecting limitation was as low as 1.68 × 10⁻⁸ M. The sensing mechanism was proposed as that Al³⁺ was bound by two carboxyl groups, resulting in the rotating restriction of aromatic groups and strong fluorescence. This sensing ability of CBC for Al³⁺ was evaluated by TLC analysis, stamp experiment and simulated water samples, suggesting the excellent application potential on simple, rapid and in-situ detection of Al³⁺ in real environments.

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.