Design and Research of Dual Functional Colorimetric Sensor for Successive Detection of Hg2+ and S2-
CHENG Xiaohong1, DAI Sisi2, HE Ping2, QU Shaohua1, WANG Jingyang1
1 Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang 441053, China 2 College of Chemical Engineering, Hubei University of Arts and Science, Xiangyang 441053, China
Abstract: 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.
程晓红, 代思思, 和平, 屈少华, 汪竞阳. 可依次检测汞、硫离子的双功能比色传感器的设计与研究[J]. 材料导报, 2020, 34(24): 24010-24013.
CHENG Xiaohong, DAI Sisi, HE Ping, QU Shaohua, WANG Jingyang. Design and Research of Dual Functional Colorimetric Sensor for Successive Detection of Hg2+ and S2-. Materials Reports, 2020, 34(24): 24010-24013.
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