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Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis

In this work, a cyclic voltammetry analysis for the detection of Ascorbic Acid (AA) based on a carbon-clay paste electrode modified with titanium dioxide (CPEA/TiO(2)) is presented. The electrochemical sensor was prepared using clay and carbon graphite, mixed with TiO(2) to investigate the electrode...

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Autores principales: Djonse Justin, Bakary Tigana, Blaise, Niraka, Valery, Hambate Gomdje
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947266/
https://www.ncbi.nlm.nih.gov/pubmed/36846689
http://dx.doi.org/10.1016/j.heliyon.2023.e13474
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author Djonse Justin, Bakary Tigana
Blaise, Niraka
Valery, Hambate Gomdje
author_facet Djonse Justin, Bakary Tigana
Blaise, Niraka
Valery, Hambate Gomdje
author_sort Djonse Justin, Bakary Tigana
collection PubMed
description In this work, a cyclic voltammetry analysis for the detection of Ascorbic Acid (AA) based on a carbon-clay paste electrode modified with titanium dioxide (CPEA/TiO(2)) is presented. The electrochemical sensor was prepared using clay and carbon graphite, mixed with TiO(2) to investigate the electrode behavior towards the detection of AA. Comprehensive characterization approaches including X-ray diffraction (XRD), Selected area electron diffraction (SAED), Transmission electron microscopy (TEM), Fourier transform infra-red spectroscopy (FTIR) were carried out on different samples. The results indicated that, the electrode has been effectively modified, while the electrochemical parameters of AA on CPEA/T(i)O(2)/UV such as the charge transfer coefficient (α(a)), number of electrons (n) transferred and standard potential were calculated. CPEA/TiO(2)/UV exhibit better photoactivity and also higher electronic conductivity under light radiation (100 W). The linear range for AA was determined between 0.150μM and 0.850 μM with the straight-line equation equivalent to [Formula: see text] (n = 8, R(2) = 0.993). The limit of detection was 0.732 μM (3σ) and limit of quantification was 2.440 μM. For the analytical applications, pharmaceutical tablets such as Chloroquine phosphate, Azithromycin and Hydroxychloroquine sulfate were performed. In addition, interference study in the analytical application was performed, and it was found that the electroanalytical method used can be well adopted for simultaneous electrochemical detection of AA and Azithromycin.
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spelling pubmed-99472662023-02-24 Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis Djonse Justin, Bakary Tigana Blaise, Niraka Valery, Hambate Gomdje Heliyon Research Article In this work, a cyclic voltammetry analysis for the detection of Ascorbic Acid (AA) based on a carbon-clay paste electrode modified with titanium dioxide (CPEA/TiO(2)) is presented. The electrochemical sensor was prepared using clay and carbon graphite, mixed with TiO(2) to investigate the electrode behavior towards the detection of AA. Comprehensive characterization approaches including X-ray diffraction (XRD), Selected area electron diffraction (SAED), Transmission electron microscopy (TEM), Fourier transform infra-red spectroscopy (FTIR) were carried out on different samples. The results indicated that, the electrode has been effectively modified, while the electrochemical parameters of AA on CPEA/T(i)O(2)/UV such as the charge transfer coefficient (α(a)), number of electrons (n) transferred and standard potential were calculated. CPEA/TiO(2)/UV exhibit better photoactivity and also higher electronic conductivity under light radiation (100 W). The linear range for AA was determined between 0.150μM and 0.850 μM with the straight-line equation equivalent to [Formula: see text] (n = 8, R(2) = 0.993). The limit of detection was 0.732 μM (3σ) and limit of quantification was 2.440 μM. For the analytical applications, pharmaceutical tablets such as Chloroquine phosphate, Azithromycin and Hydroxychloroquine sulfate were performed. In addition, interference study in the analytical application was performed, and it was found that the electroanalytical method used can be well adopted for simultaneous electrochemical detection of AA and Azithromycin. Elsevier 2023-02-04 /pmc/articles/PMC9947266/ /pubmed/36846689 http://dx.doi.org/10.1016/j.heliyon.2023.e13474 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Djonse Justin, Bakary Tigana
Blaise, Niraka
Valery, Hambate Gomdje
Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
title Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
title_full Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
title_fullStr Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
title_full_unstemmed Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
title_short Investigation of the photoactivation effect of TiO(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
title_sort investigation of the photoactivation effect of tio(2) onto carbon-clay paste electrode by cyclic voltammetry analysis
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9947266/
https://www.ncbi.nlm.nih.gov/pubmed/36846689
http://dx.doi.org/10.1016/j.heliyon.2023.e13474
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