Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B
In this paper, the preparation, characterization, and electrochemical application of Cu<sub>2</sub>O nanoparticles and an electrochemical reduced graphene oxide nanohybrid modified glassy carbon electrode (denoted as Cu<sub>2</sub>O NPs‒ERGO/GCE) are described. This modified...
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MDPI AG
2019-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/9/7/958 |
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| author | Quanguo He Jun Liu Yaling Tian Yiyong Wu Felista Magesa Peihong Deng Guangli Li |
| author_facet | Quanguo He Jun Liu Yaling Tian Yiyong Wu Felista Magesa Peihong Deng Guangli Li |
| author_sort | Quanguo He |
| collection | DOAJ |
| description | In this paper, the preparation, characterization, and electrochemical application of Cu<sub>2</sub>O nanoparticles and an electrochemical reduced graphene oxide nanohybrid modified glassy carbon electrode (denoted as Cu<sub>2</sub>O NPs‒ERGO/GCE) are described. This modified electrode was used as an electrochemical sensor for the catalytic oxidation of rhodamine B (RhB), and it exhibited an excellent electrochemical performance for RhB. The oxidation potential of RhB was decreased greatly, and the sensitivity to detect RhB was improved significantly. Under optimum conditions, a linear dynamic range of 0.01−20.0 μM and a low detection limit of 0.006 μM were obtained with the Cu<sub>2</sub>O NPs‒ERGO/GCE by using second‒order derivative linear sweep voltammetry. In addition, the selectivity of the prepared modified electrode was analyzed for the determination of RhB. The practical application of this sensor was investigated for the determination of RhB in food samples, and satisfactory results were obtained. |
| first_indexed | 2024-12-22T08:55:36Z |
| format | Article |
| id | doaj.art-e5a0ac546b87440eaddb3459ee073ab2 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-22T08:55:36Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-e5a0ac546b87440eaddb3459ee073ab22022-12-21T18:31:51ZengMDPI AGNanomaterials2079-49912019-06-019795810.3390/nano9070958nano9070958Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine BQuanguo He0Jun Liu1Yaling Tian2Yiyong Wu3Felista Magesa4Peihong Deng5Guangli Li6School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, ChinaSchool of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, ChinaKey Laboratory of Functional Metal‒Organic Compounds of Hunan Province; Key Laboratory of Functional Organometallic Materials of Hunan Provincial Universities; Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, ChinaSchool of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, ChinaIn this paper, the preparation, characterization, and electrochemical application of Cu<sub>2</sub>O nanoparticles and an electrochemical reduced graphene oxide nanohybrid modified glassy carbon electrode (denoted as Cu<sub>2</sub>O NPs‒ERGO/GCE) are described. This modified electrode was used as an electrochemical sensor for the catalytic oxidation of rhodamine B (RhB), and it exhibited an excellent electrochemical performance for RhB. The oxidation potential of RhB was decreased greatly, and the sensitivity to detect RhB was improved significantly. Under optimum conditions, a linear dynamic range of 0.01−20.0 μM and a low detection limit of 0.006 μM were obtained with the Cu<sub>2</sub>O NPs‒ERGO/GCE by using second‒order derivative linear sweep voltammetry. In addition, the selectivity of the prepared modified electrode was analyzed for the determination of RhB. The practical application of this sensor was investigated for the determination of RhB in food samples, and satisfactory results were obtained.https://www.mdpi.com/2079-4991/9/7/958electroanalysisCu<sub>2</sub>O nanoparticlesrhodamine Breduced graphene oxide |
| spellingShingle | Quanguo He Jun Liu Yaling Tian Yiyong Wu Felista Magesa Peihong Deng Guangli Li Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B Nanomaterials electroanalysis Cu<sub>2</sub>O nanoparticles rhodamine B reduced graphene oxide |
| title | Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B |
| title_full | Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B |
| title_fullStr | Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B |
| title_full_unstemmed | Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B |
| title_short | Facile Preparation of Cu<sub>2</sub>O Nanoparticles and Reduced Graphene Oxide Nanocomposite for Electrochemical Sensing of Rhodamine B |
| title_sort | facile preparation of cu sub 2 sub o nanoparticles and reduced graphene oxide nanocomposite for electrochemical sensing of rhodamine b |
| topic | electroanalysis Cu<sub>2</sub>O nanoparticles rhodamine B reduced graphene oxide |
| url | https://www.mdpi.com/2079-4991/9/7/958 |
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