dc.creator | Ostos Marcos, Francisco José | es |
dc.creator | Lebrón Romero, José Antonio | es |
dc.creator | Moyá Morán, María Luisa | es |
dc.creator | Bernal Pérez, Eva | es |
dc.creator | Flores, Ana | es |
dc.creator | Lépori, Cristian | es |
dc.creator | Lopez-López, Manuel | es |
dc.date.accessioned | 2021-02-19T12:46:04Z | |
dc.date.available | 2021-02-19T12:46:04Z | |
dc.date.issued | 2021-01 | |
dc.identifier.citation | Ostos Marcos, F.J., Lebrón Romero, J.A., Moyá Morán, M.L., Bernal Pérez, E., Flores, A., Lépori, C. y Lopez-López, M. (2021). Potentiometric Study of Carbon Nanotube/Surfactant Interactions by Ion-Selective Electrodes. Driving Forces in the Adsorption and Dispersion Processes. International Journal of Molecular Sciences, 22 (2), 826. | |
dc.identifier.issn | 1422-0067 | es |
dc.identifier.issn | 1661-6596 | es |
dc.identifier.uri | https://hdl.handle.net/11441/105162 | |
dc.description.abstract | The interaction (adsorption process) of commercial ionic surfactants with non-functionalized and functionalized carbon nanotubes (CNTs) has been studied by potentiometric measurements based on the use of ion-selective electrodes. The goal of this work was to investigate the role of the CNTs’ charge and structure in the CNT/surfactant interactions. Non-functionalized single- (SWCNT) and multi-walled carbon nanotubes (MWCNT), and amine functionalized SWCNT were used. The influence of the surfactant architecture on the CNT/surfactant interactions was also studied. Surfactants with different charge and hydrophobic tail length (sodium dodecyl sulfate (SDS), octyltrimethyl ammonium bromide (OTAB), dodecyltrimethyl ammonium bromide (DoTAB) and hexadecyltrimethyl ammonium bromide (CTAB)) were studied. According to the results, the adsorption process shows a cooperative character, with the hydrophobic interaction contribution playing a key role. This is made evident by the correlation between the free surfactant concentration (at a fixed [CNT]) and the critical micellar concentration, cmc, found for all the CNTs and surfactants investigated. The electrostatic interactions mainly determine the CNT dispersion, although hydrophobic interactions also contribute to this process. | es |
dc.description.sponsorship | Junta de Andalucía-2019/FQM-206 y 2019/FQM-274 | es |
dc.description.sponsorship | Fondo Europeo de Desarrollo Regional (FEDER) | es |
dc.format | application/pdf | es |
dc.format.extent | 12 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | International Journal of Molecular Sciences, 22 (2), 826. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | carbon nanotubes | es |
dc.subject | ionic surfactants | es |
dc.subject | potentiometric technique | es |
dc.subject | ion-selective electrodes | es |
dc.subject | adsorption | es |
dc.subject | dispersion | es |
dc.title | Potentiometric Study of Carbon Nanotube/Surfactant Interactions by Ion-Selective Electrodes. Driving Forces in the Adsorption and Dispersion Processes | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Física | es |
dc.relation.projectID | 2019/FQM-206 | es |
dc.relation.projectID | 2019/FQM-274 | es |
dc.relation.publisherversion | https://doi.org/10.3390/ijms22020826 | es |
dc.identifier.doi | 10.3390/ijms22020826 | es |
dc.contributor.group | Universidad de Sevilla. FQM206: Grupo de Cinética del Profesor Rodriguez Velasco | es |
dc.contributor.group | Universidad de Sevilla. FQM274: Grupo de Química Coloidal y Catálisis Micelar | es |
dc.journaltitle | International Journal of Molecular Sciences | es |
dc.publication.volumen | 22 | es |
dc.publication.issue | 2 | es |
dc.publication.initialPage | 826 | es |
dc.contributor.funder | Junta de Andalucía | es |
dc.contributor.funder | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) | es |