A highly selective colorimetric and fluorescent chemosensor for Al(III) based-on simple naphthol in aqueous solution

Zhaodi Liu; Huajie Xu; Liangquan Sheng; Shuisheng Chen; Deqian Huang; Jie Liu

doi:10.1016/j.saa.2015.12.004

A highly selective colorimetric and fluorescent chemosensor for Al(III) based-on simple naphthol in aqueous solution

Spectrochim Acta A Mol Biomol Spectrosc. 2016 Mar 15:157:6-10. doi: 10.1016/j.saa.2015.12.004. Epub 2015 Dec 9.

Authors

Zhaodi Liu¹, Huajie Xu², Liangquan Sheng³, Shuisheng Chen², Deqian Huang², Jie Liu²

Affiliations

¹ Department of Chemistry and Materials Engineering, Fuyang Normal College, Fuyang, China. Electronic address: zhaodi_liu@163.com.
² Department of Chemistry and Materials Engineering, Fuyang Normal College, Fuyang, China.
³ Department of Chemistry and Materials Engineering, Fuyang Normal College, Fuyang, China. Electronic address: shenglq@fync.edu.cn.

PMID: 26690670
DOI: 10.1016/j.saa.2015.12.004

Abstract

A colorimetric and fluorescent chemosensor (L) for Al(III) was synthesized and fully characterized. L could be both used as a colorimetric and fluorescent chemosensor for the detection of Al(3+) ions with low detection limit (8.87×10(-7) M) in CH3CN-H2O (1:1, v/v) solution. The binding ratio of L-Al(3+) was determined from the Job plot (absorption and fluorescence spectra) and MALDI-TOF MS data to be 1:1. The binding constant (Ka) of Al(3+) binding to L was calculated to be 4.8×10(5) M(-1) from a Benesi-Hildebrand plot. Moreover, the binding site of L with Al(3+) was determined by (1)H NMR titration experiment.

Keywords: Al(III); Colorimetric; Fluorescent chemosensor.

Publication types

Research Support, Non-U.S. Gov't