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Type:	Artigo de Periódico
Title:	Modeling CO2 and N2 permeation through mixed matrix membranes containing oxygenated carbon nanotubes dispersed in polysulfone
Authors:	Thales Almeida Barbosa Marcelo Costa Flores Katia Cecília de Souza Figueiredo
Abstract:	Mixed matrix membranes (MMMs) consist of a polymeric phase and a dispersed solid filler such as zeolites or carbon nanotubes. We prepared symmetric and asymmetric polysulfonebased MMMs containing functionalized multi-walled carbon nanotubes (MWNT-O) for CO2/N2 separation. Maxwell’s model was used to predict the permeabilities of MMMs. The permeability achieved using the model exhibited a good fit of the model in symmetric MMMs, especially for CO2. This can be potentially attributed to the high affinity of the system toward the polymer matrix. The permeability recorded using Maxwell’s model could not reflect the properties of the asymmetric membranes, and this could be attributed to the generation of voids around the fillers or defects present on the surface of the skin. Finally, a mathematical fit was proposed to improve prediction accuracy for both the MMM systems.
Subject:	Permeabilidade Compositos polimericos
language:	por
metadata.dc.publisher.country:	Brasil
Publisher:	Universidade Federal de Minas Gerais
Publisher Initials:	UFMG
metadata.dc.publisher.department:	ENG - DEPARTAMENTO DE ENGENHARIA QUÍMICA
Rights:	Acesso Aberto
metadata.dc.identifier.doi:	https://doi.org/10.21926/aeer.2203030
URI:	http://hdl.handle.net/1843/61218
Issue Date:	16-Aug-2022
metadata.dc.url.externa:	doi:10.21926/aeer.2203030
metadata.dc.relation.ispartof:	Advances in Environmental and Engineering Research
Appears in Collections:	Artigo de Periódico

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