Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System
Abstract In this study, loose nanofiltration membranes made of polysulfone dissolved in co-solvents PolarClean and gamma-Valerolactone were prepared via slot die coating (SDC) on a roll-to-roll (R2R) system by directly coating them onto a support layer or free standing. A solution flow rate of 20 mL...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-03-01
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| Series: | npj Clean Water |
| Online Access: | https://doi.org/10.1038/s41545-024-00319-4 |
| _version_ | 1827301402912751616 |
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| author | David Lu Kwangjun Jung Ju Young Shim Tequila A. L. Harris Isabel C. Escobar |
| author_facet | David Lu Kwangjun Jung Ju Young Shim Tequila A. L. Harris Isabel C. Escobar |
| author_sort | David Lu |
| collection | DOAJ |
| description | Abstract In this study, loose nanofiltration membranes made of polysulfone dissolved in co-solvents PolarClean and gamma-Valerolactone were prepared via slot die coating (SDC) on a roll-to-roll (R2R) system by directly coating them onto a support layer or free standing. A solution flow rate of 20 mL/min, substrate speed of 17.1 mm/s, and coating gap of 0.1 mm resulted in the formation of membranes without structural defects. Pre-wetting the support layer with dope solution minimized shrinkage of membrane layer thickness and improved interfacial adhesion. Membrane samples produced using SDC exhibited properties and performance consistent with bench-scale doctor blade extruded samples; pre-wetted and uncompressed samples (SDC-3) exhibited the highest rejection of bovine serum albumin (99.20% ± 1.31%) and along with adequate mean permeability during filtration (70.5 ± 8.33 LMH/bar). This study shows that combining sustainable materials development with SDC provides a holistic approach to membrane separations to bridge materials discovery and membrane formation. |
| first_indexed | 2024-04-24T16:22:32Z |
| format | Article |
| id | doaj.art-8d7dee4abaef4c4a94cfaace27564044 |
| institution | Directory Open Access Journal |
| issn | 2059-7037 |
| language | English |
| last_indexed | 2024-04-24T16:22:32Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Clean Water |
| spelling | doaj.art-8d7dee4abaef4c4a94cfaace275640442024-03-31T11:09:32ZengNature Portfolionpj Clean Water2059-70372024-03-017111710.1038/s41545-024-00319-4Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R SystemDavid Lu0Kwangjun Jung1Ju Young Shim2Tequila A. L. Harris3Isabel C. Escobar4Department of Chemical and Materials Engineering, University of KentuckyGeorge W. Woodruff School of Mechanical Engineering, Georgia Institute of TechnologyGeorge W. Woodruff School of Mechanical Engineering, Georgia Institute of TechnologyGeorge W. Woodruff School of Mechanical Engineering, Georgia Institute of TechnologyDepartment of Chemical and Materials Engineering, University of KentuckyAbstract In this study, loose nanofiltration membranes made of polysulfone dissolved in co-solvents PolarClean and gamma-Valerolactone were prepared via slot die coating (SDC) on a roll-to-roll (R2R) system by directly coating them onto a support layer or free standing. A solution flow rate of 20 mL/min, substrate speed of 17.1 mm/s, and coating gap of 0.1 mm resulted in the formation of membranes without structural defects. Pre-wetting the support layer with dope solution minimized shrinkage of membrane layer thickness and improved interfacial adhesion. Membrane samples produced using SDC exhibited properties and performance consistent with bench-scale doctor blade extruded samples; pre-wetted and uncompressed samples (SDC-3) exhibited the highest rejection of bovine serum albumin (99.20% ± 1.31%) and along with adequate mean permeability during filtration (70.5 ± 8.33 LMH/bar). This study shows that combining sustainable materials development with SDC provides a holistic approach to membrane separations to bridge materials discovery and membrane formation.https://doi.org/10.1038/s41545-024-00319-4 |
| spellingShingle | David Lu Kwangjun Jung Ju Young Shim Tequila A. L. Harris Isabel C. Escobar Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System npj Clean Water |
| title | Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System |
| title_full | Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System |
| title_fullStr | Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System |
| title_full_unstemmed | Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System |
| title_short | Manufacturing supported loose-nanofiltration polymeric membranes with eco-friendly solvents on an R2R System |
| title_sort | manufacturing supported loose nanofiltration polymeric membranes with eco friendly solvents on an r2r system |
| url | https://doi.org/10.1038/s41545-024-00319-4 |
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