An aggregation-induced emission (AIE) fluorescent chemosensor for the detection of Al(III) in aqueous solution. (December 2019)

• Record Type: Journal Article
• Authors: Li, Yuanyuan; Xu, Kui; Si, Yue; Yang, Cuiping; Peng, Qiuchen; He, Juan; Hu, Qinggang; Li, Kai
• Is Part Of: Dyes and pigments. Volume 171(2019)
• Publication Date: 2019-12
• Subjects: Aggregation-induced emission -- Aluminum ion -- Fluorescent chemosensor -- Chelate polymers; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2019.107682
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: A novel fluorescent chemosensor (2 ) for the detection of Al(III) was designed based on the strategy of aggregation-induced emission (AIE), which was synthesized by introducing carboxyl group to tetraphenylethylene structure.2 can bind with Al(III) to form chelate polymers with AIE characteristic, giving rise to an intense "turn-on" response in aqueous solution at pH 7.0. The binding stoichiometry of2 toward Al(III) was in 1:1. High sensitivity and selectivity to Al(III) were achieved. A detection limit of 1.96 μmol L −1 and a linear rang of 0.0–50.0 μmol L −1 were obtained. Furthermore, 2 was successfully applied in detecting Al(III) in real water samples, which showed satisfactory recovery and accuracy. Graphical abstract: Image 1 Highlights: A new tetraphenylethylene (TPE) derivative was prepared for sensing Al(III). The chemosensor exhibited fluorescence "turn-on" response to Al(III). The detection can be performed in neutral aqueous solution. Chelate polymers with AIE character was formed by the chemosensor and Al(III). Fast & highly selective detection of Al(III) in real water samples was achieved.