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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 193, 2018 - Issue 9
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Original Articles

A novel Hg2+ fluorescence sensor TPE-TSC based on aggregation-induced emission

Jie MaSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. ChinaCorrespondence[email protected]
,
Yulan ZengSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. China
,
Luliang YanSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. China
,
Bingkun ChenSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. China
,
Mengya SunSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. China
,
Zhenhua LiuSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. China
&
Shuping ZhangSchool of Science, University of Shanghai for Science and Technology, Shanghai, P. R. China
 show all
Pages 582-586 | Received 05 Dec 2017, Accepted 07 Jun 2018, Published online: 19 Sep 2018
 
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Abstract

A fluorescent sensor TPE-TSC with aggregation induced emission (AIE) characteristic is synthesized for detecting Hg2+ by attaching thiosemicarbazide (TSC) unit into tetraphenylethylene (TPE) group. TPE-TSC exhibits intense green emission in DMSO/H2O (V:V = 1:9) solution with the formation of the aggregation. TPE-TSC shows outstanding fluorescence quenching toward Hg2+ over other metal ions due to the formation of complex TPE-TSC/Hg2+ with a 2:1 binding ratio. The detection limit of TPE-TSC for Hg2+ is 1 × 10−5 mol·L−1.

Graphical Abstract

Acknowledgments

The authors are thankful to the Natural Science Foundation of Shanghai [No. 15ZR1428500] and the National Natural Science Foundation of China [No. 20906061] for financial supports.

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