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Using Heterocycle to Improve the Selectivity of Rhodamine-6G Dye: Synthesis of Pyrrole-modified Rhodamine-6G and its Recognition to Zn2+.
Author(s)
Rui Qiao School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China ; Anhui Province Key Laboratory for Degradation and Monitoring of Pollution of the Environment, China
Hai Yun Fan School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China
CuiBing Bai School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China ; Anhui Province Key Laboratory for Degradation and Monitoring of Pollution of the Environment, China
Ling Dai School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China
Lin Zhang School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China ; Anhui Province Key Laboratory for Degradation and Monitoring of Pollution of the Environment, China
Jie Zhang School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China
Shui Sheng Chen Anhui Province Key Laboratory for Degradation and Monitoring of Pollution of the Environment, China School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China
Hui Miao School of Chemistry and Materials Engineering, Fuyang Normal University, Fuyang, Anhui Province, China ; Anhui Province Key Laboratory for Degradation and Monitoring of Pollution of the Environment, China
Abstract
Summary: The fluorescent sensor XQN for Zn2+ based on rhodamine-6G have been designed and synthesized. XQN showed fluorescent specific selectivity and high sensitivity for Zn2+ against other metal ions such as Fe3+, Cr3+, Hg2+, Ag+, Ca2+, Cu2+, Pb2+, Cd2+, Ni2+, Co2+ and Mg2+ in CH3CNPBS(phosphate buffer saline) (10 mM, v/v=7:3, pH = 7.4) solution. The distinct color change and the rapid emergence of fluorescence emission provided naked-eyes detection for Zn2+. The test strip results showed that these sensors could act as a convenient and efficient Zn2+ test kit. The recognition mechanism of the sensor toward Zn2+ was evaluated by IR and the Job's plots. The detection limits of XQN towards Zn2+ was calculated as 2.39 µM. In addition, XQN-Zn2+ fluorescence lifetime and fluorescence quantum yield were also measured.
Publication Details
Page(s) 300-307
DOI DOI not available
Published Journal: Journal of Chemical Society of Pakistan, Volume: 41, Issue: 2, Year: 2019
Keywords
Keywords are not available for this article.
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