NDLI: Preparation and Characterization of Modified Polysulfone with Crosslinked Chitosan-Glutaraldehyde MWCNT Nanofiltration Membranes, and Evaluation of Their Capability for Salt Rejection.

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Preparation and Characterization of Modified Polysulfone with Crosslinked Chitosan-Glutaraldehyde MWCNT Nanofiltration Membranes, and Evaluation of Their Capability for Salt Rejection.

Content Provider	Europe PMC
Author	Alshahrani, Ahmed A. El-Habeeb, Abeer A. Alotaibi, Noor H. Shaman, Anfal A. Almutairi, Wajd F. Alotaibi, Samar M. Hassan, Hassan M. Alsohaimi, Ibrahim Hotan
Editor	García Payo, María del Carmen
Copyright Year	2022
Abstract	Nanofiltration membranes were successfully created using multi-walled carbon nanotubes (MWCNTs) and MWCNTs modified with amine (MWCNT-NH2) and carboxylic groups (MWCNT-COOH). Chitosan (CHIT) and chitosan–glutaraldehyde (CHIT-G) were utilized as dispersants. Sonication, SEM, and contact angle were used to characterize the as-prepared membranes. The results revealed that the type of multi-walled carbon nanotubes (MWCNT, MWCNT-COOH and MWCNT-NH2) used as the top layer had a significant impact on membrane characteristics. The lowest contact angle was 38.6 ± 8.5 for the chitosan-G/MWCNT-COOH membrane. The surface morphology of membranes changed when carbon with carboxylic or amine groups was introduced. In addition, water permeability was greater for CHIT-G/MWCNT-COOH and CHIT-G/MWCNT-NH2 membranes. The CHIT-G/MWCNT-COOH membrane had the highest water permeability (5.64 ± 0.27 L m−2 h−1 bar−1). The findings also revealed that for all membranes, the rejection of inorganic salts was in the order R(NaCl) > R(MgSO4).
Journal	Polymers
Volume Number	14
PubMed Central reference number	PMC9785133
Issue Number	24
PubMed reference number	36559828
e-ISSN	20734360
DOI	10.3390/polym14245463
Language	English
Publisher	MDPI
Publisher Date	2022-12-13
Access Restriction	Open
Rights License	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 (https://creativecommons.org/licenses/by/4.0/). © 2022 by the authors.
Subject Keyword	nanofiltration chitosan glutaraldehyde carbon nanotubes salt rejection
Content Type	Text
Resource Type	Article
Subject	Chemistry Polymers and Plastics

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