A fluorescent probe based on a spiropyran for sensitive detection of Ce~(3+) ion |
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| Affiliation: | 1. Key Laboratory of Science & Technology of Eco-Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China;2. Weifang Institute of Test and Measurement, Weifang 261000, China;3. Penglai Xinguang Pigment Chemical Co., Ltd., Penglai 265600, China;4. School of Environmental Science and Engineering, Donghua University, Shanghai 201620, China;1. School of Chemistry, College of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran;2. Departament de Química Inorgànica i Institut de Nanociència i Nanotecnologia, Universitat de Barcelona, Av. Diagonal 645, 08028, Barcelona, Spain;3. Institute of Low Temperature and Structure Research, Polish Academy of Science, Oko’lna 2, 50-950, Wroclaw, Poland;1. Department of Chemistry, Kamla Rai College (J. P. University), Goplalganj, Bihar 841428, India;2. Department of Chemistry, Indian Institute of Technology Roorkee, Utterakhand 247667, India |
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| Abstract: | A spiropyran-based probe was developed. It serves as a fluorescence turn-on probe for selective detection of Ce3+ in both ethanol and aqueous (water/ethanol, 1:9 or 9:1, v/v) media. Ce3+ can induce photochromism of the probe though the probe exhibits negligible photochromic property by itself. The probe is sensitive to Ce3+ and the detection limit reaches 1.7 μmol/L. It exhibits a high selectivity for Ce3+ ion over other common metal cations including Li+, Na+, Ag+, Sr2+, Ni2+, Co2+, Hg2+, Zn2+, Cr3+, Al3+, Fe3+ and Bi3+ and lanthanide ions Nd3+, Yb3+ and La3+. The probe may be used for quantitative determination of the concentration of Ce3+ ion in a range of 1–10 μmol/L and for application to environmental water samples. Sensing mechanism of the probe towards Ce3+ ion is proposed. |
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| Keywords: | Spiropyran Probe Cerium (III) ion Fluorescent Rare earths |
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