Journal
DYES AND PIGMENTS
Volume 171, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2019.107682
Keywords
Aggregation-induced emission; Aluminum ion; Fluorescent chemosensor; Chelate polymers
Funding
- National Natural Science Foundation of China [51502079, 21501150, 21575034]
- Science and Technology Key Project of Henan Education Department [18A150026]
- Open Foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University [2019GXYSOF12]
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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 of 2 toward Al(III) was in 1:1. High sensitivity and selectivity to Al(III) were achieved. A detection limit of 1.96 mu mol L-1 and a linear rang of 0.0-50.0 mu mol L-1 were obtained. Furthermore, 2 was successfully applied in detecting Al(III) in real water samples, which showed satisfactory recovery and accuracy.
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