The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/7024 |
Resumo: | Mixed matrix asymmetric membranes were prepared by the addition of silver nanoparticles to cellulose acetate/acetone/formamide casting solutions with ratios acetone/formamide varying from 1.44 to 2.77 to prepare ultrafiltration/nanofiltration membranes covering a wide range of hydraulic permeabilities. Binding of the silver nanoparticles to the polymer matrix is revealed through comparison of the FTIR spectra of the cellulose acetate and the Ag/cellulose acetate membranes. In the later, there is a decrease of the ratio between the bands intensities at 2,000–2,500 cm 21. Membrane surface charge of the mixed matrix membranes varies with the pore size and pH,and when compared with cellulose acetate membranes there is a decrease of the negative surface charge densities. The silver nanoparticles in all mixed matrix membranes results in an enhancement of the hydraulic permeabilities, ranging from 10.8 kg m 22 h 21 bar 21 to 67.1 kg m 22 h 21 bar21. POLYM. COMPOS., 38:32–39, 2017. VC 2015 Society of Plastics Engineers. |
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The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranesMixed matrix asymmetric membranes were prepared by the addition of silver nanoparticles to cellulose acetate/acetone/formamide casting solutions with ratios acetone/formamide varying from 1.44 to 2.77 to prepare ultrafiltration/nanofiltration membranes covering a wide range of hydraulic permeabilities. Binding of the silver nanoparticles to the polymer matrix is revealed through comparison of the FTIR spectra of the cellulose acetate and the Ag/cellulose acetate membranes. In the later, there is a decrease of the ratio between the bands intensities at 2,000–2,500 cm 21. Membrane surface charge of the mixed matrix membranes varies with the pore size and pH,and when compared with cellulose acetate membranes there is a decrease of the negative surface charge densities. The silver nanoparticles in all mixed matrix membranes results in an enhancement of the hydraulic permeabilities, ranging from 10.8 kg m 22 h 21 bar 21 to 67.1 kg m 22 h 21 bar21. POLYM. COMPOS., 38:32–39, 2017. VC 2015 Society of Plastics Engineers.Society of Plastics EngineersRCIPLSonawane, Shirish H.Terrien, AntonineFigueiredo, Ana SofiaGonçalves, Maria ClaraDe Pinho, Maria Norberta2017-05-18T09:21:19Z2017-012017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/7024engSONAWANE, Shirish H.; [et al] – The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes. Polymer Composites. ISSN: 1548-0569. Vol. 38, N.º 1 (2017), pp. 32-391548-056910.1002/pc.23557metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:52:33Zoai:repositorio.ipl.pt:10400.21/7024Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:16:03.965947Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
title |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
spellingShingle |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes Sonawane, Shirish H. |
title_short |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
title_full |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
title_fullStr |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
title_full_unstemmed |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
title_sort |
The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes |
author |
Sonawane, Shirish H. |
author_facet |
Sonawane, Shirish H. Terrien, Antonine Figueiredo, Ana Sofia Gonçalves, Maria Clara De Pinho, Maria Norberta |
author_role |
author |
author2 |
Terrien, Antonine Figueiredo, Ana Sofia Gonçalves, Maria Clara De Pinho, Maria Norberta |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Sonawane, Shirish H. Terrien, Antonine Figueiredo, Ana Sofia Gonçalves, Maria Clara De Pinho, Maria Norberta |
description |
Mixed matrix asymmetric membranes were prepared by the addition of silver nanoparticles to cellulose acetate/acetone/formamide casting solutions with ratios acetone/formamide varying from 1.44 to 2.77 to prepare ultrafiltration/nanofiltration membranes covering a wide range of hydraulic permeabilities. Binding of the silver nanoparticles to the polymer matrix is revealed through comparison of the FTIR spectra of the cellulose acetate and the Ag/cellulose acetate membranes. In the later, there is a decrease of the ratio between the bands intensities at 2,000–2,500 cm 21. Membrane surface charge of the mixed matrix membranes varies with the pore size and pH,and when compared with cellulose acetate membranes there is a decrease of the negative surface charge densities. The silver nanoparticles in all mixed matrix membranes results in an enhancement of the hydraulic permeabilities, ranging from 10.8 kg m 22 h 21 bar 21 to 67.1 kg m 22 h 21 bar21. POLYM. COMPOS., 38:32–39, 2017. VC 2015 Society of Plastics Engineers. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05-18T09:21:19Z 2017-01 2017-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/7024 |
url |
http://hdl.handle.net/10400.21/7024 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SONAWANE, Shirish H.; [et al] – The role of silver nanoparticles on mixed matrix Ag/Cellulose acetate asymmetric membranes. Polymer Composites. ISSN: 1548-0569. Vol. 38, N.º 1 (2017), pp. 32-39 1548-0569 10.1002/pc.23557 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Society of Plastics Engineers |
publisher.none.fl_str_mv |
Society of Plastics Engineers |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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