Colorimetric Detection of Cu2+ and Fluorescent Detection of PO43- and S2- by a Multifunctional Chemosensor

Dong Hee Joo; Jin Su Mok; Geon Hwan Bae; Sang Eun Oh; Ji Hye Kang; Cheal Kim

doi:10.1021/acs.iecr.7b01115

Colorimetric Detection of Cu²⁺ and Fluorescent Detection of PO₄^3- and S^2- by a Multifunctional Chemosensor

Dong Hee Joo, Jin Su Mok, Geon Hwan Bae, Sang Eun Oh, Ji Hye Kang, Cheal Kim

Dept. of Fine Chemistry

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

78 Scopus citations

Abstract

A simple multifunctional chemosensor 1 was synthesized by a combination of N-aminophthalimide and 8-hydroxyjulolidine-9-carboxaldehyde. The sensor 1 showed a clear color change toward Cu²⁺ from pale to deep yellow and significant fluorescence enhancements toward PO₄^3- and S^2-. The detection limit (0.14 μM) for Cu²⁺ ion was below the World Health Organization (WHO) guideline for drinking water (31.5 μM). The sensor 1 could be used to quantify copper ion in real water samples. In addition, the sensor 1 could detect phosphate and sulfide with the fluorescent enhancements in aqueous solution. The sensing mechanism of Cu²⁺ by 1 was proposed to be an intramolecular charge transfer (ICT) and those of PO₄^3- and S^2- by 1 were proposed to be a deprotonation process, based on the experimental results and theoretical calculations.

Original language	English
Pages (from-to)	8399-8407
Number of pages	9
Journal	Industrial and Engineering Chemistry Research
Volume	56
Issue number	30
DOIs	https://doi.org/10.1021/acs.iecr.7b01115
State	Published - 2 Aug 2017

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title = "Colorimetric Detection of Cu2+ and Fluorescent Detection of PO43- and S2- by a Multifunctional Chemosensor",

abstract = "A simple multifunctional chemosensor 1 was synthesized by a combination of N-aminophthalimide and 8-hydroxyjulolidine-9-carboxaldehyde. The sensor 1 showed a clear color change toward Cu2+ from pale to deep yellow and significant fluorescence enhancements toward PO43- and S2-. The detection limit (0.14 μM) for Cu2+ ion was below the World Health Organization (WHO) guideline for drinking water (31.5 μM). The sensor 1 could be used to quantify copper ion in real water samples. In addition, the sensor 1 could detect phosphate and sulfide with the fluorescent enhancements in aqueous solution. The sensing mechanism of Cu2+ by 1 was proposed to be an intramolecular charge transfer (ICT) and those of PO43- and S2- by 1 were proposed to be a deprotonation process, based on the experimental results and theoretical calculations.",

author = "Joo, \{Dong Hee\} and Mok, \{Jin Su\} and Bae, \{Geon Hwan\} and Oh, \{Sang Eun\} and Kang, \{Ji Hye\} and Cheal Kim",

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doi = "10.1021/acs.iecr.7b01115",

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T1 - Colorimetric Detection of Cu2+ and Fluorescent Detection of PO43- and S2- by a Multifunctional Chemosensor

AU - Joo, Dong Hee

AU - Mok, Jin Su

AU - Bae, Geon Hwan

AU - Oh, Sang Eun

AU - Kang, Ji Hye

AU - Kim, Cheal

PY - 2017/8/2

Y1 - 2017/8/2

N2 - A simple multifunctional chemosensor 1 was synthesized by a combination of N-aminophthalimide and 8-hydroxyjulolidine-9-carboxaldehyde. The sensor 1 showed a clear color change toward Cu2+ from pale to deep yellow and significant fluorescence enhancements toward PO43- and S2-. The detection limit (0.14 μM) for Cu2+ ion was below the World Health Organization (WHO) guideline for drinking water (31.5 μM). The sensor 1 could be used to quantify copper ion in real water samples. In addition, the sensor 1 could detect phosphate and sulfide with the fluorescent enhancements in aqueous solution. The sensing mechanism of Cu2+ by 1 was proposed to be an intramolecular charge transfer (ICT) and those of PO43- and S2- by 1 were proposed to be a deprotonation process, based on the experimental results and theoretical calculations.

AB - A simple multifunctional chemosensor 1 was synthesized by a combination of N-aminophthalimide and 8-hydroxyjulolidine-9-carboxaldehyde. The sensor 1 showed a clear color change toward Cu2+ from pale to deep yellow and significant fluorescence enhancements toward PO43- and S2-. The detection limit (0.14 μM) for Cu2+ ion was below the World Health Organization (WHO) guideline for drinking water (31.5 μM). The sensor 1 could be used to quantify copper ion in real water samples. In addition, the sensor 1 could detect phosphate and sulfide with the fluorescent enhancements in aqueous solution. The sensing mechanism of Cu2+ by 1 was proposed to be an intramolecular charge transfer (ICT) and those of PO43- and S2- by 1 were proposed to be a deprotonation process, based on the experimental results and theoretical calculations.

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JF - Industrial and Engineering Chemistry Research

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Colorimetric Detection of Cu²⁺ and Fluorescent Detection of PO₄^3- and S^2- by a Multifunctional Chemosensor

Abstract

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