Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization

Flow capacitive deionization is a water desalination technique that uses liquid carbon-based electrodes to recover fresh water from brackish or seawater. This is a potential second-generation water desalination process, however it is limited by parameters such as feed electrode conductivity, interfa...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Gbenro Folaranmi, Myriam Tauk, Mikhael Bechelany, Philippe Sistat, Marc Cretin, Francois Zaviska
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	flow electrode capacitive deionization electrospinning activated carbon desalination Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/67235176114e498b92c37f9d55cc7912
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:67235176114e498b92c37f9d55cc7912
record_format	dspace
spelling	oai:doaj.org-article:67235176114e498b92c37f9d55cc79122021-11-25T18:14:33ZSynthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization10.3390/ma142268911996-1944https://doaj.org/article/67235176114e498b92c37f9d55cc79122021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/22/6891https://doaj.org/toc/1996-1944Flow capacitive deionization is a water desalination technique that uses liquid carbon-based electrodes to recover fresh water from brackish or seawater. This is a potential second-generation water desalination process, however it is limited by parameters such as feed electrode conductivity, interfacial resistance, viscosity, and so on. In this study, titanium oxide nanofibers (TiO<sub>2</sub>NF) were manufactured using an electrospinning process and then blended with commercial activated carbon (AC) to create a well distributed flow electrode in this study. Field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray (EDX) were used to characterize the morphology, crystal structure, and chemical moieties of the as-synthesized composites. Notably, the flow electrode containing 1 wt.% TiO<sub>2</sub>NF (ACTiO<sub>2</sub>NF 1 wt.%) had the highest capacitance and the best salt removal rate (0.033 mg/min·cm<sup>2</sup>) of all the composites. The improvement in cell performance at this ratio indicates that the nanofibers are uniformly distributed over the electrode’s surface, preventing electrode passivation, and nanofiber agglomeration, which could impede ion flow to the electrode’s pores. This research suggests that the physical mixture could be used as a flow electrode in capacitive deionization.Gbenro FolaranmiMyriam TaukMikhael BechelanyPhilippe SistatMarc CretinFrancois ZaviskaMDPI AGarticleflow electrode capacitive deionizationelectrospinningactivated carbondesalinationTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6891, p 6891 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	flow electrode capacitive deionization electrospinning activated carbon desalination Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	flow electrode capacitive deionization electrospinning activated carbon desalination Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Gbenro Folaranmi Myriam Tauk Mikhael Bechelany Philippe Sistat Marc Cretin Francois Zaviska Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization
description	Flow capacitive deionization is a water desalination technique that uses liquid carbon-based electrodes to recover fresh water from brackish or seawater. This is a potential second-generation water desalination process, however it is limited by parameters such as feed electrode conductivity, interfacial resistance, viscosity, and so on. In this study, titanium oxide nanofibers (TiO<sub>2</sub>NF) were manufactured using an electrospinning process and then blended with commercial activated carbon (AC) to create a well distributed flow electrode in this study. Field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray (EDX) were used to characterize the morphology, crystal structure, and chemical moieties of the as-synthesized composites. Notably, the flow electrode containing 1 wt.% TiO<sub>2</sub>NF (ACTiO<sub>2</sub>NF 1 wt.%) had the highest capacitance and the best salt removal rate (0.033 mg/min·cm<sup>2</sup>) of all the composites. The improvement in cell performance at this ratio indicates that the nanofibers are uniformly distributed over the electrode’s surface, preventing electrode passivation, and nanofiber agglomeration, which could impede ion flow to the electrode’s pores. This research suggests that the physical mixture could be used as a flow electrode in capacitive deionization.
format	article
author	Gbenro Folaranmi Myriam Tauk Mikhael Bechelany Philippe Sistat Marc Cretin Francois Zaviska
author_facet	Gbenro Folaranmi Myriam Tauk Mikhael Bechelany Philippe Sistat Marc Cretin Francois Zaviska
author_sort	Gbenro Folaranmi
title	Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization
title_short	Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization
title_full	Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization
title_fullStr	Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization
title_full_unstemmed	Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization
title_sort	synthesis and characterization of activated carbon co-mixed electrospun titanium oxide nanofibers as flow electrode in capacitive deionization
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/67235176114e498b92c37f9d55cc7912
work_keys_str_mv	AT gbenrofolaranmi synthesisandcharacterizationofactivatedcarboncomixedelectrospuntitaniumoxidenanofibersasflowelectrodeincapacitivedeionization AT myriamtauk synthesisandcharacterizationofactivatedcarboncomixedelectrospuntitaniumoxidenanofibersasflowelectrodeincapacitivedeionization AT mikhaelbechelany synthesisandcharacterizationofactivatedcarboncomixedelectrospuntitaniumoxidenanofibersasflowelectrodeincapacitivedeionization AT philippesistat synthesisandcharacterizationofactivatedcarboncomixedelectrospuntitaniumoxidenanofibersasflowelectrodeincapacitivedeionization AT marccretin synthesisandcharacterizationofactivatedcarboncomixedelectrospuntitaniumoxidenanofibersasflowelectrodeincapacitivedeionization AT francoiszaviska synthesisandcharacterizationofactivatedcarboncomixedelectrospuntitaniumoxidenanofibersasflowelectrodeincapacitivedeionization
_version_	1718411441327833088

Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization

Ejemplares similares