Design and Research of Dual Functional Colorimetric Sensor for Successive Detection of Hg2+ and S2-

被引：0

作者：

Cheng X. ^{[1
]}

Dai S. ^{[2
]}

He P. ^{[2
]}

Qu S. ^{[1
]}

Wang J. ^{[1
]}

机构：

[1] Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang

[2] College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang

来源：

Cailiao Daobao/Materials Reports | 2020年 / 34卷 / 24期

关键词：

Azobenzene; Colorimetric approach; Dual-functional sensor; Mercury; Sulfide anion;

D O I：

10.11896/cldb.19110094

中图分类号：

学科分类号：

摘要：

In this work, compound C1 was designed and synthesized as a dual-functional sensor for Hg2+ and S2-. In compound C1, the carbamodithioate unit had an exceptionally strong affinity towards Hg2+ and then formed the C1-Hg(Ⅱ) complex, which would induce the changes on intramolecular charge transfer (ICT) efficiency and the concomitant UV-vis spectra. Furthermore, the C1-Hg(Ⅱ) complex could serve as an indirect sensor towards sulfide anion. Upon the addition of S2-, the absorption spectra of C1-Hg(Ⅱ) complex shifted by ~135 nm with the color changing from light yellow to deep red. The detection limit was determined to be as low as 1.5×10-6 mol/L and the mixture system displayed high selectivity to S2- over other anions. © 2020, Materials Review Magazine. All right reserved.

引用

页码：24010 / 24013

页数：3

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