Issue 6, 2025, Issue in Progress

A novel multifunctional fluorescent probe with ESIPT and AIE effects for the detection of Co2+ and HClO

Abstract

We developed a novel fluorescent probe featuring excited-state intramolecular proton transfer (ESIPT) and aggregation-induced emission (AIE) effects, which displayed dual-channel fluorescence emission. The probe detected both Co2+ and HClO with naked eye under daylight as well as through a fluorescence spectrophotometer. The probe exhibited a low detection limit for Co2+ at 2.823 μM, while the detection limit for HClO was 11.55 μM. When the probe (10 μM) was mixed with Co2+, the fluorescence intensity at 556 nm rapidly decreased within 10 minutes and stabilized after 40 minutes, while for HClO, it took 960 min to observe the same decrease in intensity within 960 min. The probe (10 μM) achieved naked-eye detection of Co2+ recognition under daylight; however, achieving naked-eye detection of HClO under daylight necessitated higher concentrations (500 μM). Thus, this probe shows promising potential for environmental monitoring and water quality detection.

Graphical abstract: A novel multifunctional fluorescent probe with ESIPT and AIE effects for the detection of Co2+ and HClO

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Article information

Article type
Paper
Submitted
17 oct. 2024
Accepted
24 des. 2024
First published
06 febr. 2025
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2025,15, 4000-4013

A novel multifunctional fluorescent probe with ESIPT and AIE effects for the detection of Co2+ and HClO

C. Lu, J. Xu, Z. Song, G. Zhu and Z. Dai, RSC Adv., 2025, 15, 4000 DOI: 10.1039/D4RA07451C

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