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CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method

The main scope of this work is to develop nano-carbon-based mixed matrix cellulose acetate membranes (MMMs) for the potential use in both gas and liquid separation processes. For this purpose, a variety of mixed matrix membranes, consisting of cellulose acetate (CA) polymer and carbon nanotubes as a...

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Autores principales: Esser, Tobias, Wolf, Tobias, Schubert, Tim, Benra, Jan, Forero, Stefan, Maistros, George, Barbe, Stéphan, Theodorakopoulos, George V., Karousos, Dionysios S., Sapalidis, Andreas A., Favvas, Evangelos P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911556/
https://www.ncbi.nlm.nih.gov/pubmed/33499034
http://dx.doi.org/10.3390/nano11020280
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author Esser, Tobias
Wolf, Tobias
Schubert, Tim
Benra, Jan
Forero, Stefan
Maistros, George
Barbe, Stéphan
Theodorakopoulos, George V.
Karousos, Dionysios S.
Sapalidis, Andreas A.
Favvas, Evangelos P.
author_facet Esser, Tobias
Wolf, Tobias
Schubert, Tim
Benra, Jan
Forero, Stefan
Maistros, George
Barbe, Stéphan
Theodorakopoulos, George V.
Karousos, Dionysios S.
Sapalidis, Andreas A.
Favvas, Evangelos P.
author_sort Esser, Tobias
collection PubMed
description The main scope of this work is to develop nano-carbon-based mixed matrix cellulose acetate membranes (MMMs) for the potential use in both gas and liquid separation processes. For this purpose, a variety of mixed matrix membranes, consisting of cellulose acetate (CA) polymer and carbon nanotubes as additive material were prepared, characterized, and tested. Multi-walled carbon nanotubes (MWCNTs) were used as filler material and diacetone alcohol (DAA) as solvent. The first main objective towards highly efficient composite membranes was the proper preparation of agglomerate-free MWCNTs dispersions. Rotor-stator system (RS) and ultrasonic sonotrode (USS) were used to achieve the nanofillers’ dispersion. In addition, the first results of the application of the three-roll mill (TRM) technology in the filler dispersion achieved were promising. The filler material, MWCNTs, was characterized by scanning electron microscopy (SEM) and liquid nitrogen (LN(2)) adsorption-desorption isotherms at 77 K. The derivatives CA-based mixed matrix membranes were characterized by tensile strength and water contact angle measurements, impedance spectroscopy, gas permeability/selectivity measurements, and water permeability tests. The studied membranes provide remarkable water permeation properties, 12–109 L/m(2)/h/bar, and also good separation factors of carbon dioxide and helium separations. Specifically, a separation factor of 87 for 10% He/N(2) feed concentration and a selectivity value of 55.4 for 10% CO(2)/CH(4) feed concentration were achieved.
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spelling pubmed-79115562021-02-28 CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method Esser, Tobias Wolf, Tobias Schubert, Tim Benra, Jan Forero, Stefan Maistros, George Barbe, Stéphan Theodorakopoulos, George V. Karousos, Dionysios S. Sapalidis, Andreas A. Favvas, Evangelos P. Nanomaterials (Basel) Article The main scope of this work is to develop nano-carbon-based mixed matrix cellulose acetate membranes (MMMs) for the potential use in both gas and liquid separation processes. For this purpose, a variety of mixed matrix membranes, consisting of cellulose acetate (CA) polymer and carbon nanotubes as additive material were prepared, characterized, and tested. Multi-walled carbon nanotubes (MWCNTs) were used as filler material and diacetone alcohol (DAA) as solvent. The first main objective towards highly efficient composite membranes was the proper preparation of agglomerate-free MWCNTs dispersions. Rotor-stator system (RS) and ultrasonic sonotrode (USS) were used to achieve the nanofillers’ dispersion. In addition, the first results of the application of the three-roll mill (TRM) technology in the filler dispersion achieved were promising. The filler material, MWCNTs, was characterized by scanning electron microscopy (SEM) and liquid nitrogen (LN(2)) adsorption-desorption isotherms at 77 K. The derivatives CA-based mixed matrix membranes were characterized by tensile strength and water contact angle measurements, impedance spectroscopy, gas permeability/selectivity measurements, and water permeability tests. The studied membranes provide remarkable water permeation properties, 12–109 L/m(2)/h/bar, and also good separation factors of carbon dioxide and helium separations. Specifically, a separation factor of 87 for 10% He/N(2) feed concentration and a selectivity value of 55.4 for 10% CO(2)/CH(4) feed concentration were achieved. MDPI 2021-01-22 /pmc/articles/PMC7911556/ /pubmed/33499034 http://dx.doi.org/10.3390/nano11020280 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Esser, Tobias
Wolf, Tobias
Schubert, Tim
Benra, Jan
Forero, Stefan
Maistros, George
Barbe, Stéphan
Theodorakopoulos, George V.
Karousos, Dionysios S.
Sapalidis, Andreas A.
Favvas, Evangelos P.
CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method
title CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method
title_full CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method
title_fullStr CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method
title_full_unstemmed CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method
title_short CO(2)/CH(4) and He/N(2) Separation Properties and Water Permeability Valuation of Mixed Matrix MWCNTs-Based Cellulose Acetate Flat Sheet Membranes: A Study of the Optimization of the Filler Material Dispersion Method
title_sort co(2)/ch(4) and he/n(2) separation properties and water permeability valuation of mixed matrix mwcnts-based cellulose acetate flat sheet membranes: a study of the optimization of the filler material dispersion method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7911556/
https://www.ncbi.nlm.nih.gov/pubmed/33499034
http://dx.doi.org/10.3390/nano11020280
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