Water-Soluble Carbon Quantum Dots Modified by Amino Groups for Polarization Fluorescence Detection of Copper (II) Ion in Aqueous Media
| Autor: | Dmitry S. Muratov, Gopalu Karunakaran, Sergei A. Eremin, Anastasia Yakusheva, Denis Kuznetsov, Dmitry Arkhipov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
polarization fluorescent analysis
water samples Materials science Analytical chemistry chemistry.chemical_element Bioengineering 02 engineering and technology lcsh:Chemical technology 01 natural sciences Ion lcsh:Chemistry Chemical Engineering (miscellaneous) media_common.cataloged_instance lcsh:TP1-1185 copper cation European union media_common Process Chemistry and Technology 010401 analytical chemistry Test method 021001 nanoscience & nanotechnology Polarization (waves) carbon quantum dots Copper Fluorescence 0104 chemical sciences Wavelength chemistry lcsh:QD1-999 fluorescence properties 0210 nano-technology Microwave |
| Zdroj: | Processes Volume 8 Issue 12 Processes, Vol 8, Iss 1573, p 1573 (2020) |
| ISSN: | 2227-9717 |
| DOI: | 10.3390/pr8121573 |
| Popis: | Industrialization is serious for changing the environment and natural water composition, especially near cities and manufacturing areas. Logically, the new ultrasensitive technology for precise control of the quality and quantity of water sources is needed. Herein, an innovative method of polarization fluorescence analysis (FPA) was developed to measure the concentration of heavy metals in water. The approach was successfully applied for precise tests with reduced analysis time and increased measurement efficiency among laboratory methods. Based on this work, the investigations established the new type of carbon quantum dots (CQDs) with controllable fluorescence properties and functionalized amino&mdash groups, which is appropriate for FPA. The parameters of one and two-step microwave synthesis routes are adjusted wavelength and fluorescence intensity of CQDs. Finally, under optimized conditions, the FPA is showed the detection of copper (2+) cations in water samples below European Union standard (2 mg/L). Moreover, in comparison with fluorescence quenching, polarization fluorescence is proved as a convenient, simple, and rapid test method for effective water safety analysis. |
| Databáze: | OpenAIRE |
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