CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions
CuBi<sub>2</sub>O<sub>4</sub> synthesized by thermolysis of a new Bi(III)-Cu(II) oxalate coordination compound, namely Bi<sub>2</sub>Cu(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>·0.25H<sub>2</sub>O, was tested through i...
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MDPI AG
2021-03-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/3/740 |
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| author | Raluca Dumitru (m.Vodă) Sorina Negrea Cornelia Păcurariu Adrian Surdu Adelina Ianculescu Aniela Pop Florica Manea |
| author_facet | Raluca Dumitru (m.Vodă) Sorina Negrea Cornelia Păcurariu Adrian Surdu Adelina Ianculescu Aniela Pop Florica Manea |
| author_sort | Raluca Dumitru (m.Vodă) |
| collection | DOAJ |
| description | CuBi<sub>2</sub>O<sub>4</sub> synthesized by thermolysis of a new Bi(III)-Cu(II) oxalate coordination compound, namely Bi<sub>2</sub>Cu(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>·0.25H<sub>2</sub>O, was tested through its integration within carbon nanofiber paste electrode, namely CuBi/carbon nanofiber (CNF), for the electrochemical detection of amoxicillin (AMX) in the aqueous solution. Thermal analysis and IR spectroscopy were used to characterize a CuBi<sub>2</sub>O<sub>4</sub> precursor to optimize the synthesis conditions. The copper bismuth oxide obtained after a heating treatment of the precursor at 700 °C/1 h was investigated by an X-ray diffraction and scanning electron microscopy. The electrochemical behavior of CuBi/CNF in comparison with CNF paste electrode showed the electrocatalytic activity of CuBi<sub>2</sub>O<sub>4</sub> toward amoxicillin detection. Two potential detections, with one at the potential value of +0.540 V/saturated calomel electrode (SCE) and the other at the potential value of −1.000 V/SCE, were identified by cyclic voltammetry, which were exploited to develop the enhanced voltammetric and/or amperometric detection protocols. Better electroanalytical performance for AMX detection was achieved for CuBi/CNF using differential-pulsed and square-wave voltammetries than others reported in the literature. Very nice results obtained through anodic and cathodic currents recorded at +0.750 V/SCE and −1.000 V/SCE in the same time period using a pseudo multiple-pulsed amperometry technique showed the great potential of the CuBi/CNF paste electrode for practical applications in amoxicillin detection in aqueous solutions. |
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| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T13:12:21Z |
| publishDate | 2021-03-01 |
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| series | Nanomaterials |
| spelling | doaj.art-2d4603d01c04413e93f2d6b92f64ed7d2023-11-21T10:37:00ZengMDPI AGNanomaterials2079-49912021-03-0111374010.3390/nano11030740CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous SolutionsRaluca Dumitru (m.Vodă)0Sorina Negrea1Cornelia Păcurariu2Adrian Surdu3Adelina Ianculescu4Aniela Pop5Florica Manea6Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Piata Victoriei No. 2, 300006 Timisoara, RomaniaNational Institute of Research and Development for Industrial Ecology (INCD ECOIND), 300431 Timisoara, RomaniaFaculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Piata Victoriei No. 2, 300006 Timisoara, RomaniaDepartment of Oxide Materials Science and Engineering, Faculty of Applied Chemistry and Materials Science, Polytehnic University of Bucharest, Gh. Polizu Street No. 1–7, 011061 Bucharest, RomaniaDepartment of Oxide Materials Science and Engineering, Faculty of Applied Chemistry and Materials Science, Polytehnic University of Bucharest, Gh. Polizu Street No. 1–7, 011061 Bucharest, RomaniaFaculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Piata Victoriei No. 2, 300006 Timisoara, RomaniaFaculty of Industrial Chemistry and Environmental Engineering, Politehnica University Timisoara, Piata Victoriei No. 2, 300006 Timisoara, RomaniaCuBi<sub>2</sub>O<sub>4</sub> synthesized by thermolysis of a new Bi(III)-Cu(II) oxalate coordination compound, namely Bi<sub>2</sub>Cu(C<sub>2</sub>O<sub>4</sub>)<sub>4</sub>·0.25H<sub>2</sub>O, was tested through its integration within carbon nanofiber paste electrode, namely CuBi/carbon nanofiber (CNF), for the electrochemical detection of amoxicillin (AMX) in the aqueous solution. Thermal analysis and IR spectroscopy were used to characterize a CuBi<sub>2</sub>O<sub>4</sub> precursor to optimize the synthesis conditions. The copper bismuth oxide obtained after a heating treatment of the precursor at 700 °C/1 h was investigated by an X-ray diffraction and scanning electron microscopy. The electrochemical behavior of CuBi/CNF in comparison with CNF paste electrode showed the electrocatalytic activity of CuBi<sub>2</sub>O<sub>4</sub> toward amoxicillin detection. Two potential detections, with one at the potential value of +0.540 V/saturated calomel electrode (SCE) and the other at the potential value of −1.000 V/SCE, were identified by cyclic voltammetry, which were exploited to develop the enhanced voltammetric and/or amperometric detection protocols. Better electroanalytical performance for AMX detection was achieved for CuBi/CNF using differential-pulsed and square-wave voltammetries than others reported in the literature. Very nice results obtained through anodic and cathodic currents recorded at +0.750 V/SCE and −1.000 V/SCE in the same time period using a pseudo multiple-pulsed amperometry technique showed the great potential of the CuBi/CNF paste electrode for practical applications in amoxicillin detection in aqueous solutions.https://www.mdpi.com/2079-4991/11/3/740CuBi<sub>2</sub>O<sub>4</sub> electrocatalystamoxicillinelectrochemical detectionCuBi<sub>2</sub>O<sub>4</sub>-carbon nanofiber paste electrode |
| spellingShingle | Raluca Dumitru (m.Vodă) Sorina Negrea Cornelia Păcurariu Adrian Surdu Adelina Ianculescu Aniela Pop Florica Manea CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions Nanomaterials CuBi<sub>2</sub>O<sub>4</sub> electrocatalyst amoxicillin electrochemical detection CuBi<sub>2</sub>O<sub>4</sub>-carbon nanofiber paste electrode |
| title | CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions |
| title_full | CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions |
| title_fullStr | CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions |
| title_full_unstemmed | CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions |
| title_short | CuBi<sub>2</sub>O<sub>4</sub> Synthesis, Characterization, and Application in Sensitive Amperometric/Voltammetric Detection of Amoxicillin in Aqueous Solutions |
| title_sort | cubi sub 2 sub o sub 4 sub synthesis characterization and application in sensitive amperometric voltammetric detection of amoxicillin in aqueous solutions |
| topic | CuBi<sub>2</sub>O<sub>4</sub> electrocatalyst amoxicillin electrochemical detection CuBi<sub>2</sub>O<sub>4</sub>-carbon nanofiber paste electrode |
| url | https://www.mdpi.com/2079-4991/11/3/740 |
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