High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry
In the textile industry, a high-efficiency dye removal and low-retention of salt is demanded for recycling wastewater. In this study, polyvinylidene fluoride (PVDF) ultrafiltration membrane was transformed to a negatively charged loose nanofiltration (NF) membrane through UV-grafting of acrylic acid...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/12/11/2443 |
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| author | Yu-Hsuan Chiao Shu-Ting Chen Micah Belle Marie Yap Ang Tanmoy Patra David Alfonso Castilla-Casadiego Rong Fan Jorge Almodovar Wei-Song Hung S. Ranil Wickramasinghe |
| author_facet | Yu-Hsuan Chiao Shu-Ting Chen Micah Belle Marie Yap Ang Tanmoy Patra David Alfonso Castilla-Casadiego Rong Fan Jorge Almodovar Wei-Song Hung S. Ranil Wickramasinghe |
| author_sort | Yu-Hsuan Chiao |
| collection | DOAJ |
| description | In the textile industry, a high-efficiency dye removal and low-retention of salt is demanded for recycling wastewater. In this study, polyvinylidene fluoride (PVDF) ultrafiltration membrane was transformed to a negatively charged loose nanofiltration (NF) membrane through UV-grafting of acrylic acid. At the optimal exposure of PVDF membrane in UV light for 5 min, the membrane had a high dye recovery above 99% (Congo red and Eriochrome<sup>®</sup> Black T) and a low sodium chloride (NaCl) rejection of less than 15% along with pure water flux of 26 L∙m<sup>−2</sup>∙h<sup>−1</sup>∙bar<sup>−1</sup>. Its antifouling and oleophobicity surface properties were verified using fluorescent- bovine serum albumin (BSA) and underwater mineral oil contact angle, respectively. According to the fluorescent microscopic images, the modified membrane had ten times lower adhesion of protein on the surface than the unmodified membrane. The underwater oil contact angle was raised from 110° to 155°. Moreover, the salt rejection followed this sequence: Na<sub>2</sub>SO<sub>4</sub> > MgSO<sub>4</sub> > NaCl > MgCl<sub>2</sub>, which agreed with the typical negatively charged NF membrane. In addition, the physicochemical characterization of membranes was further investigated to understand and link to the membrane performance, such as surface functional group, surface elements analysis, surface roughness/morphology, and surface hydrophilicity. |
| first_indexed | 2024-03-10T15:24:12Z |
| format | Article |
| id | doaj.art-0227b91569ca473687f9588cdb19e857 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T15:24:12Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-0227b91569ca473687f9588cdb19e8572023-11-20T18:08:33ZengMDPI AGPolymers2073-43602020-10-011211244310.3390/polym12112443High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile IndustryYu-Hsuan Chiao0Shu-Ting Chen1Micah Belle Marie Yap Ang2Tanmoy Patra3David Alfonso Castilla-Casadiego4Rong Fan5Jorge Almodovar6Wei-Song Hung7S. Ranil Wickramasinghe8Ralph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USARalph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USAR&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan University, Chung Li 32023, TaiwanRalph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USARalph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USARalph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USARalph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USAGraduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, TaiwanRalph E. Martin Department of Chemical Engineering, University of Arkansas, Fayetteville, AR 72701, USAIn the textile industry, a high-efficiency dye removal and low-retention of salt is demanded for recycling wastewater. In this study, polyvinylidene fluoride (PVDF) ultrafiltration membrane was transformed to a negatively charged loose nanofiltration (NF) membrane through UV-grafting of acrylic acid. At the optimal exposure of PVDF membrane in UV light for 5 min, the membrane had a high dye recovery above 99% (Congo red and Eriochrome<sup>®</sup> Black T) and a low sodium chloride (NaCl) rejection of less than 15% along with pure water flux of 26 L∙m<sup>−2</sup>∙h<sup>−1</sup>∙bar<sup>−1</sup>. Its antifouling and oleophobicity surface properties were verified using fluorescent- bovine serum albumin (BSA) and underwater mineral oil contact angle, respectively. According to the fluorescent microscopic images, the modified membrane had ten times lower adhesion of protein on the surface than the unmodified membrane. The underwater oil contact angle was raised from 110° to 155°. Moreover, the salt rejection followed this sequence: Na<sub>2</sub>SO<sub>4</sub> > MgSO<sub>4</sub> > NaCl > MgCl<sub>2</sub>, which agreed with the typical negatively charged NF membrane. In addition, the physicochemical characterization of membranes was further investigated to understand and link to the membrane performance, such as surface functional group, surface elements analysis, surface roughness/morphology, and surface hydrophilicity.https://www.mdpi.com/2073-4360/12/11/2443poly-(acrylic acid)loose nanofiltrationUV-gratingdye removalsuperoleophobic |
| spellingShingle | Yu-Hsuan Chiao Shu-Ting Chen Micah Belle Marie Yap Ang Tanmoy Patra David Alfonso Castilla-Casadiego Rong Fan Jorge Almodovar Wei-Song Hung S. Ranil Wickramasinghe High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry Polymers poly-(acrylic acid) loose nanofiltration UV-grating dye removal superoleophobic |
| title | High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry |
| title_full | High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry |
| title_fullStr | High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry |
| title_full_unstemmed | High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry |
| title_short | High-Performance Polyacrylic Acid-Grafted PVDF Nanofiltration Membrane with Good Antifouling Property for the Textile Industry |
| title_sort | high performance polyacrylic acid grafted pvdf nanofiltration membrane with good antifouling property for the textile industry |
| topic | poly-(acrylic acid) loose nanofiltration UV-grating dye removal superoleophobic |
| url | https://www.mdpi.com/2073-4360/12/11/2443 |
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