A lignin-based membrane fabricated with a deep eutectic solvent

Abaynesh Yihdego Gebreyohannes; Sandra L. Aristizábal; Liliana Silva; Eyad A. Qasem; Stefan Chisca; Lakshmeesha Upadhyaya; Daniyah Althobaiti; João A.P. Coutinho; Suzana P. Nunes

doi:10.1039/d3gc00658a

A lignin-based membrane fabricated with a deep eutectic solvent

Abaynesh Yihdego Gebreyohannes, Sandra L. Aristizábal, Liliana Silva, Eyad A. Qasem, Stefan Chisca, Lakshmeesha Upadhyaya, Daniyah Althobaiti, João A.P. Coutinho, Suzana P. Nunes^*

^*Corresponding author for this work

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

9 Scopus citations

Abstract

Membrane technology is a sustainable process of molecular separation and purification in the chemical and pharmaceutical industries, with lower energy consumption than traditional thermal methods. For sustainability reasons, the membrane fabrication itself needs to align with the 12 principles of green chemistry with low environmental impact, preferentially using natural polymers and green solvents. Membranes are currently mostly produced from petroleum-based polymers and organic solvents like dimethylformamide, which are not expected to be used in large amounts anymore. Lignin is a natural green polymer option, however its low solubility in mild solvents has limited its processability into membranes. We propose a sustainable membrane fabrication method using lignin fully dissolved in a green deep eutectic solvent (DES). The crosslinking with 5% epoxide in the aqueous medium enhanced the membrane stability, enabling its application in an aqueous and organic solvent medium. The resulting membrane had a molecular weight cut-off of 1.3 kg mol⁻¹, a range relevant to molecular separation in the pharmaceutical and chemical industries.

Original language	English (US)
Pages (from-to)	4769-4780
Number of pages	12
Journal	Green Chemistry
Volume	25
Issue number	12
DOIs	https://doi.org/10.1039/d3gc00658a
State	Published - May 9 2023

ASJC Scopus subject areas

Environmental Chemistry
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "A lignin-based membrane fabricated with a deep eutectic solvent",

abstract = "Membrane technology is a sustainable process of molecular separation and purification in the chemical and pharmaceutical industries, with lower energy consumption than traditional thermal methods. For sustainability reasons, the membrane fabrication itself needs to align with the 12 principles of green chemistry with low environmental impact, preferentially using natural polymers and green solvents. Membranes are currently mostly produced from petroleum-based polymers and organic solvents like dimethylformamide, which are not expected to be used in large amounts anymore. Lignin is a natural green polymer option, however its low solubility in mild solvents has limited its processability into membranes. We propose a sustainable membrane fabrication method using lignin fully dissolved in a green deep eutectic solvent (DES). The crosslinking with 5% epoxide in the aqueous medium enhanced the membrane stability, enabling its application in an aqueous and organic solvent medium. The resulting membrane had a molecular weight cut-off of 1.3 kg mol−1, a range relevant to molecular separation in the pharmaceutical and chemical industries.",

author = "Gebreyohannes, {Abaynesh Yihdego} and Aristiz{\'a}bal, {Sandra L.} and Liliana Silva and Qasem, {Eyad A.} and Stefan Chisca and Lakshmeesha Upadhyaya and Daniyah Althobaiti and Coutinho, {Jo{\~a}o A.P.} and Nunes, {Suzana P.}",

note = "Funding Information: This work was financially supported by King Abdullah University of Science and Technology (KAUST) (BAS/1/1057-01-01). We thank Dr Abdul-Hamid Emwas for the support in the solid-state 13C NMR analysis. L. P. Silva acknowledges FCT for her PhD grant SFRH/BD/135976/2018. Funding Information: This work was financially supported by King Abdullah University of Science and Technology (KAUST) (BAS/1/1057-01-01). We thank Dr Abdul-Hamid Emwas for the support in the solid-state C NMR analysis. L. P. Silva acknowledges FCT for her PhD grant SFRH/BD/135976/2018. 13 Publisher Copyright: {\textcopyright} 2023 The Royal Society of Chemistry.",

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AU - Gebreyohannes, Abaynesh Yihdego

AU - Aristizábal, Sandra L.

AU - Silva, Liliana

AU - Qasem, Eyad A.

AU - Chisca, Stefan

AU - Upadhyaya, Lakshmeesha

AU - Althobaiti, Daniyah

AU - Coutinho, João A.P.

AU - Nunes, Suzana P.

N1 - Funding Information: This work was financially supported by King Abdullah University of Science and Technology (KAUST) (BAS/1/1057-01-01). We thank Dr Abdul-Hamid Emwas for the support in the solid-state 13C NMR analysis. L. P. Silva acknowledges FCT for her PhD grant SFRH/BD/135976/2018. Funding Information: This work was financially supported by King Abdullah University of Science and Technology (KAUST) (BAS/1/1057-01-01). We thank Dr Abdul-Hamid Emwas for the support in the solid-state C NMR analysis. L. P. Silva acknowledges FCT for her PhD grant SFRH/BD/135976/2018. 13 Publisher Copyright: © 2023 The Royal Society of Chemistry.

PY - 2023/5/9

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N2 - Membrane technology is a sustainable process of molecular separation and purification in the chemical and pharmaceutical industries, with lower energy consumption than traditional thermal methods. For sustainability reasons, the membrane fabrication itself needs to align with the 12 principles of green chemistry with low environmental impact, preferentially using natural polymers and green solvents. Membranes are currently mostly produced from petroleum-based polymers and organic solvents like dimethylformamide, which are not expected to be used in large amounts anymore. Lignin is a natural green polymer option, however its low solubility in mild solvents has limited its processability into membranes. We propose a sustainable membrane fabrication method using lignin fully dissolved in a green deep eutectic solvent (DES). The crosslinking with 5% epoxide in the aqueous medium enhanced the membrane stability, enabling its application in an aqueous and organic solvent medium. The resulting membrane had a molecular weight cut-off of 1.3 kg mol−1, a range relevant to molecular separation in the pharmaceutical and chemical industries.

AB - Membrane technology is a sustainable process of molecular separation and purification in the chemical and pharmaceutical industries, with lower energy consumption than traditional thermal methods. For sustainability reasons, the membrane fabrication itself needs to align with the 12 principles of green chemistry with low environmental impact, preferentially using natural polymers and green solvents. Membranes are currently mostly produced from petroleum-based polymers and organic solvents like dimethylformamide, which are not expected to be used in large amounts anymore. Lignin is a natural green polymer option, however its low solubility in mild solvents has limited its processability into membranes. We propose a sustainable membrane fabrication method using lignin fully dissolved in a green deep eutectic solvent (DES). The crosslinking with 5% epoxide in the aqueous medium enhanced the membrane stability, enabling its application in an aqueous and organic solvent medium. The resulting membrane had a molecular weight cut-off of 1.3 kg mol−1, a range relevant to molecular separation in the pharmaceutical and chemical industries.

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A lignin-based membrane fabricated with a deep eutectic solvent

Abstract

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