Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds
In this work, we report the development of two different configurations of electrochemical carbon-based sensors for the simultaneous determination of phenolic compounds, namely hydroquinone, catechol, and resorcinol, which are harmful to human health and commonly found in the environment as a result...
| Autores: | , , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2025 |
| País: | España |
| Recursos: | Universidad Autónoma de Madrid |
| Repositório: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglês |
| OAI Identifier: | oai:repositorio.uam.es:10486/726740 |
| Acesso em linha: | https://hdl.handle.net/10486/726740 https://dx.doi.org/10.1016/j.microc.2025.115495 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Electrochemical sensor carbon paper electrode diamond nanoparticles hydroquinone catechol resorcinol Química |
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Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compoundsBlanco Gil, ElíasVázquez, LuisPozo Vázquez, María delda Silva de Campos, María PilarQuintana Mani, María del CarmenPetit Domínguez, María DoloresElectrochemical sensorcarbon paper electrodediamond nanoparticleshydroquinonecatecholresorcinolQuímicaIn this work, we report the development of two different configurations of electrochemical carbon-based sensors for the simultaneous determination of phenolic compounds, namely hydroquinone, catechol, and resorcinol, which are harmful to human health and commonly found in the environment as a result of industrial discharges. In a first approach, we used diamond nanoparticles (DNPs) to modify the surface of a glassy carbon electrode to take advantage of their catalytic properties together with their electrical conductivity, high surface area and chemical stability. In a second approach, we extrapolated the developed electrochemical sensor to a low-cost device based on a carbon paper electrode modified with diamond nanoparticles. The aim of assaying this second configuration is to test whether it is possible to carry out the simultaneous determination of these phenols employing this flexible and low-cost substrate. Both configurations were morphologically characterized by scanning electron microscopy and atomic force microscopy. We have evaluated by cyclic voltammetry the responses of the glassy carbon and carbon paper electrodes in their bare or diamond nanoparticles-modified forms. The presence of diamond nanoparticles improves the sensitivity and peak separation, enabling the resolution of the three peaks. The overlapping of DNP surface unsaturated bond orbitals, which leads to the formation of discrete electronic states within the diamond’s band gap, explains the conductivity and electrocatalytic properties of this nanomaterial. Its presence on the electrode also increases the surface area available for detection. Using the differential pulse voltammetry technique, we have obtained detection and quantification limits in the range of 1.8–8.5 μ M and 6.0–28 μ M, respectively, with wide linear concentration ranges. Furthermore, reproducibility (expressed as RSD) was between 4.8 % and 7.0 % and accuracy values, in terms of relative error, were below 8.0 %. Furthermore, the DNP-modified carbon paper sensor exhibits higher sensitivity than the glassy carbon-based sensor. To assess the electrochemical sensor applicability, a real river water sample was analysed, yielding recovery percentages between 90 % and 110 %The authors acknowledge financial support from the projects PID2023-149077OB-C31, PID2023-149077OB-C32 and the Severo Ochoa Centres of Excellence program through Grant CEX2024-001445-S funded by MCIN/AEI/10.13039/501100011033. We want to thank Guillerme Dim de Oliveira for his help in electrochemical measurements. We thank I. Ballesteros for his help with the SEM characterizationElsevierDepartamento de Química Analítica y Análisis InstrumentalFacultad de CienciasAgencia Estatal de Investigación20252025-09-29research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10486/726740https://dx.doi.org/10.1016/j.microc.2025.115495reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7267402026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| title |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| spellingShingle |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds Blanco Gil, Elías Electrochemical sensor carbon paper electrode diamond nanoparticles hydroquinone catechol resorcinol Química |
| title_short |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| title_full |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| title_fullStr |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| title_full_unstemmed |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| title_sort |
Different configurations of carbon electrochemical sensors based on diamond nanoparticles for the simultaneous detection of phenolic compounds |
| dc.creator.none.fl_str_mv |
Blanco Gil, Elías Vázquez, Luis Pozo Vázquez, María del da Silva de Campos, María Pilar Quintana Mani, María del Carmen Petit Domínguez, María Dolores |
| author |
Blanco Gil, Elías |
| author_facet |
Blanco Gil, Elías Vázquez, Luis Pozo Vázquez, María del da Silva de Campos, María Pilar Quintana Mani, María del Carmen Petit Domínguez, María Dolores |
| author_role |
author |
| author2 |
Vázquez, Luis Pozo Vázquez, María del da Silva de Campos, María Pilar Quintana Mani, María del Carmen Petit Domínguez, María Dolores |
| author2_role |
author author author author author |
| dc.contributor.none.fl_str_mv |
Departamento de Química Analítica y Análisis Instrumental Facultad de Ciencias Agencia Estatal de Investigación |
| dc.subject.none.fl_str_mv |
Electrochemical sensor carbon paper electrode diamond nanoparticles hydroquinone catechol resorcinol Química |
| topic |
Electrochemical sensor carbon paper electrode diamond nanoparticles hydroquinone catechol resorcinol Química |
| description |
In this work, we report the development of two different configurations of electrochemical carbon-based sensors for the simultaneous determination of phenolic compounds, namely hydroquinone, catechol, and resorcinol, which are harmful to human health and commonly found in the environment as a result of industrial discharges. In a first approach, we used diamond nanoparticles (DNPs) to modify the surface of a glassy carbon electrode to take advantage of their catalytic properties together with their electrical conductivity, high surface area and chemical stability. In a second approach, we extrapolated the developed electrochemical sensor to a low-cost device based on a carbon paper electrode modified with diamond nanoparticles. The aim of assaying this second configuration is to test whether it is possible to carry out the simultaneous determination of these phenols employing this flexible and low-cost substrate. Both configurations were morphologically characterized by scanning electron microscopy and atomic force microscopy. We have evaluated by cyclic voltammetry the responses of the glassy carbon and carbon paper electrodes in their bare or diamond nanoparticles-modified forms. The presence of diamond nanoparticles improves the sensitivity and peak separation, enabling the resolution of the three peaks. The overlapping of DNP surface unsaturated bond orbitals, which leads to the formation of discrete electronic states within the diamond’s band gap, explains the conductivity and electrocatalytic properties of this nanomaterial. Its presence on the electrode also increases the surface area available for detection. Using the differential pulse voltammetry technique, we have obtained detection and quantification limits in the range of 1.8–8.5 μ M and 6.0–28 μ M, respectively, with wide linear concentration ranges. Furthermore, reproducibility (expressed as RSD) was between 4.8 % and 7.0 % and accuracy values, in terms of relative error, were below 8.0 %. Furthermore, the DNP-modified carbon paper sensor exhibits higher sensitivity than the glassy carbon-based sensor. To assess the electrochemical sensor applicability, a real river water sample was analysed, yielding recovery percentages between 90 % and 110 % |
| publishDate |
2025 |
| dc.date.none.fl_str_mv |
2025 2025-09-29 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/10486/726740 https://dx.doi.org/10.1016/j.microc.2025.115495 |
| url |
https://hdl.handle.net/10486/726740 https://dx.doi.org/10.1016/j.microc.2025.115495 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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application/pdf |
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Elsevier |
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Elsevier |
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reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
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Universidad Autónoma de Madrid |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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