Dual-layered electrospun nanofibrous membranes for membrane distillation

Dual-layered electrospun nanofibrous membranes (DL-ENMs) were prepared using the hydrophobic polymer polyvinylidene fluoride (PVDF) and the hydrophilic one polysulfone (PSF). The thickness of each layer was varied by changing the electrospinning time of each polymer solution maintaining the total el...

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Autores: Khayet Souhaimi, Mohamed, García Payo, M. Carmen, García Fernández, Loreto, Contreras Martínez, Jorge
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/100289
Acceso en línea:https://hdl.handle.net/20.500.14352/100289
Access Level:acceso abierto
Palabra clave:53
Dual-layer
Electrospinning
Nanofiber
Desalination
Membrane distillation
Física (Física)
2213 Termodinámica
2213.11 Fenómenos de Transporte
2210.19 Fenómenos de Membrana
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oai_identifier_str oai:docta.ucm.es:20.500.14352/100289
network_acronym_str ES
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repository_id_str
spelling Dual-layered electrospun nanofibrous membranes for membrane distillationKhayet Souhaimi, MohamedGarcía Payo, M. CarmenGarcía Fernández, LoretoContreras Martínez, Jorge53Dual-layerElectrospinningNanofiberDesalinationMembrane distillationFísica (Física)2213 Termodinámica2213.11 Fenómenos de Transporte2210.19 Fenómenos de MembranaDual-layered electrospun nanofibrous membranes (DL-ENMs) were prepared using the hydrophobic polymer polyvinylidene fluoride (PVDF) and the hydrophilic one polysulfone (PSF). The thickness of each layer was varied by changing the electrospinning time of each polymer solution maintaining the total electrospinning time at 3 h. The characteristics of the DL-ENMs and those of each layer were studied by means of different techniques and the results were compared to the single layer PVDF and PSF ENMs (i.e. SL-ENMs). The prepared DL-ENMs were tested in desalination by direct contact membrane distillation (DCMD) using different sodium chloride feed aqueous solutions. The DCMD permeate flux of the DL-ENMs was found to be higher than that of the PVDF SLENM and it increased with the decrease of the PVDF layer due not only to the reduction of the total thickness and to the increase of both the inter-fiber space and the void volume fraction, but also to the reduction of the path between the liquid/vapour interfaces formed at both side of the DL-ENMs. Compared to the proposed SL-ENMs in DCMD, it is better to use DL-ENMs adequately designed with hydrophobic and hydrophilic polymers than SLENM with only a hydrophobic polymer.ElsevierUniversidad Complutense de Madrid20182018-01-0120182018-01-01journal articlehttp://purl.org/coar/resource_type/c_6501CVoRhttp://purl.org/coar/version/c_e19f295774971610info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/100289reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)InglésengMinisterio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CTM2015-65348-C2-2-R Not availableopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1002892026-06-02T12:44:21Z
dc.title.none.fl_str_mv Dual-layered electrospun nanofibrous membranes for membrane distillation
title Dual-layered electrospun nanofibrous membranes for membrane distillation
spellingShingle Dual-layered electrospun nanofibrous membranes for membrane distillation
Khayet Souhaimi, Mohamed
53
Dual-layer
Electrospinning
Nanofiber
Desalination
Membrane distillation
Física (Física)
2213 Termodinámica
2213.11 Fenómenos de Transporte
2210.19 Fenómenos de Membrana
title_short Dual-layered electrospun nanofibrous membranes for membrane distillation
title_full Dual-layered electrospun nanofibrous membranes for membrane distillation
title_fullStr Dual-layered electrospun nanofibrous membranes for membrane distillation
title_full_unstemmed Dual-layered electrospun nanofibrous membranes for membrane distillation
title_sort Dual-layered electrospun nanofibrous membranes for membrane distillation
dc.creator.none.fl_str_mv Khayet Souhaimi, Mohamed
García Payo, M. Carmen
García Fernández, Loreto
Contreras Martínez, Jorge
author Khayet Souhaimi, Mohamed
author_facet Khayet Souhaimi, Mohamed
García Payo, M. Carmen
García Fernández, Loreto
Contreras Martínez, Jorge
author_role author
author2 García Payo, M. Carmen
García Fernández, Loreto
Contreras Martínez, Jorge
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 53
Dual-layer
Electrospinning
Nanofiber
Desalination
Membrane distillation
Física (Física)
2213 Termodinámica
2213.11 Fenómenos de Transporte
2210.19 Fenómenos de Membrana
topic 53
Dual-layer
Electrospinning
Nanofiber
Desalination
Membrane distillation
Física (Física)
2213 Termodinámica
2213.11 Fenómenos de Transporte
2210.19 Fenómenos de Membrana
description Dual-layered electrospun nanofibrous membranes (DL-ENMs) were prepared using the hydrophobic polymer polyvinylidene fluoride (PVDF) and the hydrophilic one polysulfone (PSF). The thickness of each layer was varied by changing the electrospinning time of each polymer solution maintaining the total electrospinning time at 3 h. The characteristics of the DL-ENMs and those of each layer were studied by means of different techniques and the results were compared to the single layer PVDF and PSF ENMs (i.e. SL-ENMs). The prepared DL-ENMs were tested in desalination by direct contact membrane distillation (DCMD) using different sodium chloride feed aqueous solutions. The DCMD permeate flux of the DL-ENMs was found to be higher than that of the PVDF SLENM and it increased with the decrease of the PVDF layer due not only to the reduction of the total thickness and to the increase of both the inter-fiber space and the void volume fraction, but also to the reduction of the path between the liquid/vapour interfaces formed at both side of the DL-ENMs. Compared to the proposed SL-ENMs in DCMD, it is better to use DL-ENMs adequately designed with hydrophobic and hydrophilic polymers than SLENM with only a hydrophobic polymer.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
CVoR
http://purl.org/coar/version/c_e19f295774971610
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/100289
url https://hdl.handle.net/20.500.14352/100289
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad http://dx.doi.org/10.13039/501100003329 CTM2015-65348-C2-2-R Not available
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869402900833239040
score 15,300724

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