Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes
Enhancement of membrane permeability at no detriment of its other performances, e.g., selectivity, is a goal-directed objective in membrane fabrication. A novel antioxidant DES-lignin (lignin extracted from birch wood by using a deep eutectic solvent) polyethersulfone (PES) membrane, containing 0&am...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-09-01
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| Series: | Membranes |
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| Online Access: | http://www.mdpi.com/2077-0375/8/3/80 |
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| author | Mohammadamin Esmaeili Ikenna Anugwom Mika Mänttäri Mari Kallioinen |
| author_facet | Mohammadamin Esmaeili Ikenna Anugwom Mika Mänttäri Mari Kallioinen |
| author_sort | Mohammadamin Esmaeili |
| collection | DOAJ |
| description | Enhancement of membrane permeability at no detriment of its other performances, e.g., selectivity, is a goal-directed objective in membrane fabrication. A novel antioxidant DES-lignin (lignin extracted from birch wood by using a deep eutectic solvent) polyethersulfone (PES) membrane, containing 0–1 wt % DES-lignin, was fabricated with the phase inversion technique. The performance and morphology of the fabricated membranes were characterized by a pure water flux, polyethylene glycol (PEG) retention, Fourier transform infrared spectroscopy, scanning electron microscopy, and contact angle measurements. Membranes with less negative charge and better hydrophilicity were obtained when the DES-lignin content in the polymer solution was increased. With the highest dosage, the incorporation of DES-lignin in the membrane matrix improved the membrane permeability by 29.4% compared to a pure PES membrane. Moreover, no leakage of DES-lignin from the membrane structure was observed, indicating good compatibility of DES-lignin with the PES structure. It was also found that the improvement of both rejection and pure water flux could be achieved by using a small dosage of DES-lignin (0.25 wt %) in membrane fabrication. The membranes incorporated with DES-lignin showed higher DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)) scavenging activity compared to the pure membrane, where 2.6 and 1.1 times higher DPPH and ABTS scavenging activity was observed with the highest DES-lignin content (1 wt %). Thus, the results of this study demonstrate well the feasibility of utilizing DES-lignin as an antioxidant bio-based hydrophilicity promoter in the fabrication of ultrafiltration membranes. |
| first_indexed | 2024-03-12T06:22:24Z |
| format | Article |
| id | doaj.art-d98af3f3861148a3b2da65fdc0744972 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T06:22:24Z |
| publishDate | 2018-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-d98af3f3861148a3b2da65fdc07449722023-09-03T02:11:20ZengMDPI AGMembranes2077-03752018-09-01838010.3390/membranes8030080membranes8030080Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone MembranesMohammadamin Esmaeili0Ikenna Anugwom1Mika Mänttäri2Mari Kallioinen3LUT School of Engineering Science, Department of Separation and Purification Technology, Lappeenranta University of Technology, P.O. Box 20, Lappeenranta FIN-53851, FinlandLUT Re-Source Platform, Lappeenranta University of Technology, P.O. Box 20, 53851 Lappeenranta, FinlandLUT School of Engineering Science, Department of Separation and Purification Technology, Lappeenranta University of Technology, P.O. Box 20, Lappeenranta FIN-53851, FinlandLUT Re-Source Platform, Lappeenranta University of Technology, P.O. Box 20, 53851 Lappeenranta, FinlandEnhancement of membrane permeability at no detriment of its other performances, e.g., selectivity, is a goal-directed objective in membrane fabrication. A novel antioxidant DES-lignin (lignin extracted from birch wood by using a deep eutectic solvent) polyethersulfone (PES) membrane, containing 0–1 wt % DES-lignin, was fabricated with the phase inversion technique. The performance and morphology of the fabricated membranes were characterized by a pure water flux, polyethylene glycol (PEG) retention, Fourier transform infrared spectroscopy, scanning electron microscopy, and contact angle measurements. Membranes with less negative charge and better hydrophilicity were obtained when the DES-lignin content in the polymer solution was increased. With the highest dosage, the incorporation of DES-lignin in the membrane matrix improved the membrane permeability by 29.4% compared to a pure PES membrane. Moreover, no leakage of DES-lignin from the membrane structure was observed, indicating good compatibility of DES-lignin with the PES structure. It was also found that the improvement of both rejection and pure water flux could be achieved by using a small dosage of DES-lignin (0.25 wt %) in membrane fabrication. The membranes incorporated with DES-lignin showed higher DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid)) scavenging activity compared to the pure membrane, where 2.6 and 1.1 times higher DPPH and ABTS scavenging activity was observed with the highest DES-lignin content (1 wt %). Thus, the results of this study demonstrate well the feasibility of utilizing DES-lignin as an antioxidant bio-based hydrophilicity promoter in the fabrication of ultrafiltration membranes.http://www.mdpi.com/2077-0375/8/3/80lignindeep eutectic solvent (DES)antioxidanthydrophilic adhesion promotergreen solvent |
| spellingShingle | Mohammadamin Esmaeili Ikenna Anugwom Mika Mänttäri Mari Kallioinen Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes Membranes lignin deep eutectic solvent (DES) antioxidant hydrophilic adhesion promoter green solvent |
| title | Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes |
| title_full | Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes |
| title_fullStr | Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes |
| title_full_unstemmed | Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes |
| title_short | Utilization of DES-Lignin as a Bio-Based Hydrophilicity Promoter in the Fabrication of Antioxidant Polyethersulfone Membranes |
| title_sort | utilization of des lignin as a bio based hydrophilicity promoter in the fabrication of antioxidant polyethersulfone membranes |
| topic | lignin deep eutectic solvent (DES) antioxidant hydrophilic adhesion promoter green solvent |
| url | http://www.mdpi.com/2077-0375/8/3/80 |
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