可依次检测汞、硫离子的双功能比色传感器的设计与研究

doi:10.11896/cldb.19110094

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Abstract In this work, compound C1 was designed and synthesized as a dual-functional sensor for Hg²⁺ and S^2-. 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 S^2-, 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 S^2- over other anions.

Key words： dual-functional sensor colorimetric approach azobenzene mercury sulfide anion

Published: 24 December 2020

CLC number:

O622.4

Fund:This work was financially supported by the Natural Science Foundation of Hubei Province (2018CFB454), the Teachers′ Scientific Ability Cultivation Foundation of Hubei University of Arts and Science (2020kypyfy031), and the Project of Hubei University of Arts and Science (XK2020042).

About author:: Xiaohong Cheng received her Ph.D. degree in 2013 from Hubei Key Lab. on Organic and Polymeric Opto-Electronic Materials, Wuhan University. She is currently a lecturer in the Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science. Her research is concer-ning on synthesis of novel chemosensors.

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	CHENG Xiaohong
	DAI Sisi
	HE Ping
	QU Shaohua
	WANG Jingyang

Cite this article:

CHENG Xiaohong,DAI Sisi,HE Ping, et al. Design and Research of Dual Functional Colorimetric Sensor for Successive Detection of Hg²⁺ and S^2-[J]. Materials Reports, 2020, 34(24): 24010-24013.

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http://www.mater-rep.com/EN/10.11896/cldb.19110094 OR http://www.mater-rep.com/EN/Y2020/V34/I24/24010

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