| Rhodamine 6G-based Chemosensor for the Visual Detection of Cu2＋ and Fluorescent Detection of Hg2＋ in Water |
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| 作者姓名： | HE Song LIU Qiuchen LI Yuanyuan WEI Fangfang CAI Songtao LU Yan ZENG Xianshun |
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| 作者单位： | Key Laboratory of Display Materials ＆ Photoelectric Devices, Ministry of Education,School of Materials Science ＆ Engineering, Tianjin University of Technology, Tianjin 300384, P R. China |
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| 基金项目： | Supported by the National Natural Science Foundation of China（Nos.21272172, 21074093, 21004044） and the Natural Science Foundation of Tianjin City, China（No. 12JCZDJC21000）. |
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| 摘 要： | A novel water soluble chemosensor 1 based on rhodamine 6G spirolactam scaffold has been synthesized and characterized.Upon addition of a wide range of the environmentally and biologically relevant metal ions,chemosensor 1 shows a colorimetric selective Cu2＋ recognition from colorless to pink confirmed by UV-Vis absorption spectral changes,while it also exhibits a fluorometric selective Hg2＋ recognition by fluorescence spectrometry.An absorption enhancement factor over 17-fold with 1-Cu2＋ complex and a fluorescent enhancement factor over 45-fold with 1-Hg2＋ complex were observed.Their recognition mechanisms were assumed to be a 1：1 stoichiometry for 1-Cu2＋ complex and a 1：2 stoichiometry for 1-Hg2＋ complex,respectively,which were proposed to be different ligation leading to the ring-opening of rhodarnine 6G spirolactam.Furthermore,the detection limits for CU2＋ or Hg2＋ were 3.3 × 10-8 or 1.7x 10-7 mol/L,respectively.
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| 关 键 词： | 荧光光谱法 化学传感器 罗丹明6G 水溶性 测汞 视觉检测 化学计量比 基础 |
| 收稿时间： | 2013-08-27 |
Rhodamine 6G-based Chemosensor for the Visual Detection of Cu2+ and Fluorescent Detection of Hg2+ in Water |
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| HE Song,LIU Qiuchen,LI Yuanyuan,WEI Fangfang,CAI Songtao,LU Yan,ZENG Xianshun.Rhodamine 6G-based Chemosensor for the Visual Detection of Cu2+ and Fluorescent Detection of Hg2+ in Water[J].Chemical Research in Chinese University,2014,30(1):32-36. |
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| Authors: | HE Song LIU Qiuchen LI Yuanyuan WEI Fangfang CAI Songtao LU Yan ZENG Xianshun |
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| Institution: | Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China |
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| Abstract: | A novel water soluble chemosensor 1 based on rhodamine 6G spirolactam scaffold has been synthesized and characterized. Upon addition of a wide range of the environmentally and biologically relevant metal ions, chemosensor 1 shows a colorimetric selective Cu2+ recognition from colorless to pink confirmed by UV-Vis absorption spectral changes, while it also exhibits a fluorometric selective Hg2+ recognition by fluorescence spectrometry. An absorption enhancement factor over 17-fold with 1-Cu2+ complex and a fluorescent enhancement factor over 45-fold with 1-Hg2+ complex were observed. Their recognition mechanisms were assumed to be a 1:1 stoichiometry for 1-Cu2+ complex and a 1:2 stoichiometry for 1-Hg2+ complex, respectively, which were proposed to be different ligation leading to the ring-opening of rhodamine 6G spirolactam. Furthermore, the detection limits for Cu2+ or Hg2+ were 3.3×10-8 or 1.7×10-7 mol/L, respectively. |
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| Keywords: | Rhodamine 6G Chemosensor Cu2＋ Hg2＋ |
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