Nanofiltration performance of glutaraldehyde crosslinked graphene oxide-cellulose nanofiber membrane

Shabin Mohammed; Hanaa M. Hegab; Ranwen Ou

doi:10.1016/j.cherd.2022.04.039

Nanofiltration performance of glutaraldehyde crosslinked graphene oxide-cellulose nanofiber membrane

Shabin Mohammed, Hanaa M. Hegab, Ranwen Ou

Chemical and Petroleum Engineering

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Cellulose nanofibers have been widely used in membrane fabrication due to their unique structure, hydrophilicity, sustainability, facile surface modification, and low cost. In this study, the efficient combination of the precise molecular sieving characteristics of graphene oxide (GO) and the high permeability of the cellulose nanofibers (CNFs) network is demonstrated. GO nanosheets were incorporated into the CNF matrix using a facile vacuum filtration technique followed by chemical cross-linking. Cross-linking with glutaraldehyde not only resisted membrane swelling but also improved molecular selectivity. The nanofiltration performance of prepared membranes was evaluated in both aqueous and organic solutions. The optimized crosslinked membranes exhibited a pure solvent flux of 13.9 ± 1.9 Lm⁻²h⁻¹bar⁻¹ and 4.1 ± 0.35 Lm⁻²h⁻¹bar⁻¹ for water and ethanol respectively, while maintaining a rejection above 90% for Rose Bengal and Brilliant Blue dyes.

Original language	British English
Pages (from-to)	1-12
Number of pages	12
Journal	Chemical Engineering Research and Design
Volume	183
DOIs	https://doi.org/10.1016/j.cherd.2022.04.039
State	Published - Jul 2022

Keywords

Cellulose nanofibers
Graphene oxide
Membrane
Organic solvent nanofiltration

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title = "Nanofiltration performance of glutaraldehyde crosslinked graphene oxide-cellulose nanofiber membrane",

abstract = "Cellulose nanofibers have been widely used in membrane fabrication due to their unique structure, hydrophilicity, sustainability, facile surface modification, and low cost. In this study, the efficient combination of the precise molecular sieving characteristics of graphene oxide (GO) and the high permeability of the cellulose nanofibers (CNFs) network is demonstrated. GO nanosheets were incorporated into the CNF matrix using a facile vacuum filtration technique followed by chemical cross-linking. Cross-linking with glutaraldehyde not only resisted membrane swelling but also improved molecular selectivity. The nanofiltration performance of prepared membranes was evaluated in both aqueous and organic solutions. The optimized crosslinked membranes exhibited a pure solvent flux of 13.9 ± 1.9 Lm−2h−1bar−1 and 4.1 ± 0.35 Lm−2h−1bar−1 for water and ethanol respectively, while maintaining a rejection above 90% for Rose Bengal and Brilliant Blue dyes.",

keywords = "Cellulose nanofibers, Graphene oxide, Membrane, Organic solvent nanofiltration",

author = "Shabin Mohammed and {M. Hegab}, Hanaa and Ranwen Ou",

note = "Publisher Copyright: {\textcopyright} 2022 Institution of Chemical Engineers",

year = "2022",

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doi = "10.1016/j.cherd.2022.04.039",

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AU - Mohammed, Shabin

AU - M. Hegab, Hanaa

AU - Ou, Ranwen

PY - 2022/7

Y1 - 2022/7

N2 - Cellulose nanofibers have been widely used in membrane fabrication due to their unique structure, hydrophilicity, sustainability, facile surface modification, and low cost. In this study, the efficient combination of the precise molecular sieving characteristics of graphene oxide (GO) and the high permeability of the cellulose nanofibers (CNFs) network is demonstrated. GO nanosheets were incorporated into the CNF matrix using a facile vacuum filtration technique followed by chemical cross-linking. Cross-linking with glutaraldehyde not only resisted membrane swelling but also improved molecular selectivity. The nanofiltration performance of prepared membranes was evaluated in both aqueous and organic solutions. The optimized crosslinked membranes exhibited a pure solvent flux of 13.9 ± 1.9 Lm−2h−1bar−1 and 4.1 ± 0.35 Lm−2h−1bar−1 for water and ethanol respectively, while maintaining a rejection above 90% for Rose Bengal and Brilliant Blue dyes.

AB - Cellulose nanofibers have been widely used in membrane fabrication due to their unique structure, hydrophilicity, sustainability, facile surface modification, and low cost. In this study, the efficient combination of the precise molecular sieving characteristics of graphene oxide (GO) and the high permeability of the cellulose nanofibers (CNFs) network is demonstrated. GO nanosheets were incorporated into the CNF matrix using a facile vacuum filtration technique followed by chemical cross-linking. Cross-linking with glutaraldehyde not only resisted membrane swelling but also improved molecular selectivity. The nanofiltration performance of prepared membranes was evaluated in both aqueous and organic solutions. The optimized crosslinked membranes exhibited a pure solvent flux of 13.9 ± 1.9 Lm−2h−1bar−1 and 4.1 ± 0.35 Lm−2h−1bar−1 for water and ethanol respectively, while maintaining a rejection above 90% for Rose Bengal and Brilliant Blue dyes.

KW - Cellulose nanofibers

KW - Graphene oxide

KW - Membrane

KW - Organic solvent nanofiltration

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DO - 10.1016/j.cherd.2022.04.039

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SP - 1

EP - 12

JO - Chemical Engineering Research and Design

JF - Chemical Engineering Research and Design

ER -

Nanofiltration performance of glutaraldehyde crosslinked graphene oxide-cellulose nanofiber membrane

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Keywords

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