Copper Micro-Flowers for Electrocatalytic Sensing of Nitrate Ions in Water.
| Title: | Copper Micro-Flowers for Electrocatalytic Sensing of Nitrate Ions in Water. |
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| Authors: | Farina R; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.; D'Arrigo G; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Alberti A; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Scalese S; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Capuano GE; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Corso D; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Screpis GA; Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate 'G.F. Ingrassia', Università Degli Studi di Catania, Via S. Sofia 87, 95123 Catania, Italy.; Coniglio MA; Dipartimento di Scienze Mediche, Chirurgiche e Tecnologie Avanzate 'G.F. Ingrassia', Università Degli Studi di Catania, Via S. Sofia 87, 95123 Catania, Italy.; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy.; Condorelli GG; Dipartimento di Scienze Chimiche, Università Degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy.; Libertino S; IMM-CNR, Strada VIII Z.I., 5, 95121 Catania, Italy. |
| Source: | Sensors (Basel, Switzerland) [Sensors (Basel)] 2024 Jul 11; Vol. 24 (14). Date of Electronic Publication: 2024 Jul 11. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: MDPI Country of Publication: Switzerland NLM ID: 101204366 Publication Model: Electronic Cited Medium: Internet ISSN: 1424-8220 (Electronic) Linking ISSN: 14248220 NLM ISO Abbreviation: Sensors (Basel) Subsets: MEDLINE; PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Basel, Switzerland : MDPI, c2000- |
| Abstract: | The progressive increase in nitrate's (NO3-) presence in surface and groundwater enhances environmental and human health risks. The aim of this work is the fabrication and characterization of sensitive, real-time, low-cost, and portable amperometric sensors for low NO3- concentration detection in water. Copper (Cu) micro-flowers were electrodeposited on top of carbon screen-printed electrodes (SPCEs) via cyclic voltammetry (with voltage ranging from -1.0 V to 0.0 V at a scan rate of 0.1 V s-1). The obtained sensors exhibited a high catalytic activity toward the electro-reduction in NO3-, with a sensitivity of 44.71 μA/mM. They had a limit of detection of 0.87 µM and a good dynamic linear concentration range from 0.05 to 3 mM. The results were compared to spectrophotometric analysis. In addition, the devices exhibited good stability and a maximum standard deviation (RSD) of 5% after ten measurements; reproducibility, with a maximum RSD of 4%; and repeatability after 10 measurements with the RSD at only 5.63%. |
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| Grant Information: | ECS00000022 MUR PNRR; 101006941 EU Horizon 2020; DDG2929/5S,decree 2510/2019 regione sicilia and italian MUR |
| Contributed Indexing: | Keywords: electrocatalytic reaction; electrochemical sensor; electrodeposition; nitrate detection; screen-printed electrodes |
| Entry Date(s): | Date Created: 20240727 Latest Revision: 20240729 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC11280502 |
| DOI: | 10.3390/s24144501 |
| PMID: | 39065899 |
| Database: | MEDLINE |
Journal Article