Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe
The selective detection of metal ions in water, using sustainable detection systems, is of crescent importance for monitoring water environments and drinking water safety. One of the key elements of future chemical sciences is the use of sustainable approaches in the design of new materials. In this...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/20/7079 |
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| author | Erika Kozma Antonella Caterina Boccia Anita Andicsova-Eckstein Alfio Pulvirenti Chiara Botta |
| author_facet | Erika Kozma Antonella Caterina Boccia Anita Andicsova-Eckstein Alfio Pulvirenti Chiara Botta |
| author_sort | Erika Kozma |
| collection | DOAJ |
| description | The selective detection of metal ions in water, using sustainable detection systems, is of crescent importance for monitoring water environments and drinking water safety. One of the key elements of future chemical sciences is the use of sustainable approaches in the design of new materials. In this study, we design and synthesize a low-cost, water-soluble potassium salt of 3,4,9,10-perylene tetracarboxylic acid (PTAS), which shows a selective optical response on the addition of Cu<sup>2+</sup> and Pb<sup>2+</sup> ions in aqueous solutions. By using a water-soluble chromophore, the interactions with the metal ions are definitely more intimate and efficient, with respect to standard methods employing cosolvents. The detection limits of PTAS for both Cu<sup>2+</sup> and Pb<sup>2+</sup> are found to be 2 µM by using a simple absorbance mode, and even lower (1 μM) with NMR experiments, indicating that this analyte–probe system is sensitive enough for the detection of copper ions in drinking water and lead ions in waste water. The complexation of PTAS with both ions is supported with NMR studies, which reveal the formation of new species between PTAS and analytes. By combining a low-cost water-soluble chromophore with efficient analyte–probe interactions due to the use of aqueous solutions, the results here obtained provide a basis for designing sustainable sensing systems. |
| first_indexed | 2024-03-09T19:41:58Z |
| format | Article |
| id | doaj.art-fbe28ba18d9743f9a38735765f633c3e |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T19:41:58Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-fbe28ba18d9743f9a38735765f633c3e2023-11-24T01:37:02ZengMDPI AGMolecules1420-30492022-10-012720707910.3390/molecules27207079Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene ProbeErika Kozma0Antonella Caterina Boccia1Anita Andicsova-Eckstein2Alfio Pulvirenti3Chiara Botta4Consiglio Nazionale delle Ricerche, Istituto per le Scienze e Tecnologie Chimiche ‘Giulio Natta’, Via Alfonso Corti 12, 20133 Milano, ItalyConsiglio Nazionale delle Ricerche, Istituto per le Scienze e Tecnologie Chimiche ‘Giulio Natta’, Via Alfonso Corti 12, 20133 Milano, ItalySlovak Academy of Sciences, Polymer Institute, Dubravska Cesta 9, 81107 Bratislava, SlovakiaConsiglio Nazionale delle Ricerche, Istituto per le Scienze e Tecnologie Chimiche ‘Giulio Natta’, Via Alfonso Corti 12, 20133 Milano, ItalyConsiglio Nazionale delle Ricerche, Istituto per le Scienze e Tecnologie Chimiche ‘Giulio Natta’, Via Alfonso Corti 12, 20133 Milano, ItalyThe selective detection of metal ions in water, using sustainable detection systems, is of crescent importance for monitoring water environments and drinking water safety. One of the key elements of future chemical sciences is the use of sustainable approaches in the design of new materials. In this study, we design and synthesize a low-cost, water-soluble potassium salt of 3,4,9,10-perylene tetracarboxylic acid (PTAS), which shows a selective optical response on the addition of Cu<sup>2+</sup> and Pb<sup>2+</sup> ions in aqueous solutions. By using a water-soluble chromophore, the interactions with the metal ions are definitely more intimate and efficient, with respect to standard methods employing cosolvents. The detection limits of PTAS for both Cu<sup>2+</sup> and Pb<sup>2+</sup> are found to be 2 µM by using a simple absorbance mode, and even lower (1 μM) with NMR experiments, indicating that this analyte–probe system is sensitive enough for the detection of copper ions in drinking water and lead ions in waste water. The complexation of PTAS with both ions is supported with NMR studies, which reveal the formation of new species between PTAS and analytes. By combining a low-cost water-soluble chromophore with efficient analyte–probe interactions due to the use of aqueous solutions, the results here obtained provide a basis for designing sustainable sensing systems.https://www.mdpi.com/1420-3049/27/20/7079metal ion sensorwater-soluble peryleneoptical absorptionNMR experiments |
| spellingShingle | Erika Kozma Antonella Caterina Boccia Anita Andicsova-Eckstein Alfio Pulvirenti Chiara Botta Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe Molecules metal ion sensor water-soluble perylene optical absorption NMR experiments |
| title | Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe |
| title_full | Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe |
| title_fullStr | Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe |
| title_full_unstemmed | Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe |
| title_short | Ultrasensitive Detection of Cu(II) and Pb(II) Using a Water-Soluble Perylene Probe |
| title_sort | ultrasensitive detection of cu ii and pb ii using a water soluble perylene probe |
| topic | metal ion sensor water-soluble perylene optical absorption NMR experiments |
| url | https://www.mdpi.com/1420-3049/27/20/7079 |
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