Ferrocenyl-based thioethers and sulphones as optical, and electrochemical sensors for the differential detection of Hg2+ and Cu2+ ions

SENSORS AND ACTUATORS B-CHEMICAL

卷:238

Article

Liu, Yufeng¹  Hua, Jianfeng^1,2  Teng, Qiang¹  Zhang, Hao^1,2 

[1] Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China

[2] Inner Mongolia Key Lab Fine Organ Synth, Hohhot 010021, Peoples R China

关键词: Ferrocenyl;    Thioether;    Sulphone;    Optical signals;    Electrochemical signals;   

DOI  :  10.1016/j.snb.2016.07.048

来源: Elsevier

【 摘 要 】

Two highly selective and sensitive ferrocenyl-based thioethers 4a and 4b as no nitrogen atom contained chemosensors were designed and synthesized by using an easy method. The thioethers 4a and 4b have shown excellent selective recognition toward Hg2+ through optical and electrochemical signals. The detection limit values can reach 6.93 x 10(-7)M for 4a-Hg2+ and 4.79 x 10(-7) M for 4b-Hg2+ Moreover, ferrocenyl-based sulphone 5a and 5b which were oxidized through thioethers 4a and 4b have exhibited more selective recognition toward Cu2+ and the detection limit values can reach 5.22 x 10(-7) M and 4.97 x 10(-7)M. It was found that the colour of 5a in solution changed obviously from colourless to green occurred only when Cu2+ ion was added to the solution of the ensemble which could be easily detected by the naked eye. The two kinds of chemosensors were not easily affected by the pH values. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

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