Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications
The scarcity of drinking water and the contamination of water sources in underdeveloped countries are serious problems that require immediate low-tech and low-cost solutions. In this study, we fabricated polyacrylonitrile (PAN) porous membranes coated with silver nanoparticles (AgNP) and demonstrate...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-08-01
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| Series: | Membranes |
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| Online Access: | http://www.mdpi.com/2077-0375/8/3/59 |
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| author | Shalv Amit Parekh Rebecca Nicole David Kranthi K. R. Bannuru Lakshminarasimhan Krishnaswamy Avinash Baji |
| author_facet | Shalv Amit Parekh Rebecca Nicole David Kranthi K. R. Bannuru Lakshminarasimhan Krishnaswamy Avinash Baji |
| author_sort | Shalv Amit Parekh |
| collection | DOAJ |
| description | The scarcity of drinking water and the contamination of water sources in underdeveloped countries are serious problems that require immediate low-tech and low-cost solutions. In this study, we fabricated polyacrylonitrile (PAN) porous membranes coated with silver nanoparticles (AgNP) and demonstrated their use for water filtration and water treatment applications. The membranes were prepared by electrospinning a PAN solution and treating in a hydroxylamine (NH2OH) aqueous solution to form –C(NH2)N–OH groups that were used for functionalization (Ag+ ions) of the membrane. The coordinated silver ions were then converted to silver nanoparticles. The microstructure of the membrane, water permeability, antimicrobial effect (using Escherichia coli), and particulate filtration capabilities were studied. This study verified that the membrane demonstrated a 100% reduction for Gram-negative bacteria with an effective filtration rate of 8.0 mL/cm2 min. Furthermore, the membrane was able to eliminate 60% of latex beads as small as 50 nm and over 80% of the 2 µm beads via gravity filtration. This study demonstrated that PAN–AgNP membranes can be employed as antimicrobial membranes for the filtration of water in underdeveloped countries. |
| first_indexed | 2024-03-12T06:15:44Z |
| format | Article |
| id | doaj.art-7178c775f50f442a9345c001a171da94 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T06:15:44Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-7178c775f50f442a9345c001a171da942023-09-03T02:35:30ZengMDPI AGMembranes2077-03752018-08-01835910.3390/membranes8030059membranes8030059Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration ApplicationsShalv Amit Parekh0Rebecca Nicole David1Kranthi K. R. Bannuru2Lakshminarasimhan Krishnaswamy3Avinash Baji4Engineering Product Development, Singapore University of Technology & Design, Singapore 487372, SingaporeEngineering Product Development, Singapore University of Technology & Design, Singapore 487372, SingaporeEngineering Product Development, Singapore University of Technology & Design, Singapore 487372, SingaporeEngineering Product Development, Singapore University of Technology & Design, Singapore 487372, SingaporeEngineering Product Development, Singapore University of Technology & Design, Singapore 487372, SingaporeThe scarcity of drinking water and the contamination of water sources in underdeveloped countries are serious problems that require immediate low-tech and low-cost solutions. In this study, we fabricated polyacrylonitrile (PAN) porous membranes coated with silver nanoparticles (AgNP) and demonstrated their use for water filtration and water treatment applications. The membranes were prepared by electrospinning a PAN solution and treating in a hydroxylamine (NH2OH) aqueous solution to form –C(NH2)N–OH groups that were used for functionalization (Ag+ ions) of the membrane. The coordinated silver ions were then converted to silver nanoparticles. The microstructure of the membrane, water permeability, antimicrobial effect (using Escherichia coli), and particulate filtration capabilities were studied. This study verified that the membrane demonstrated a 100% reduction for Gram-negative bacteria with an effective filtration rate of 8.0 mL/cm2 min. Furthermore, the membrane was able to eliminate 60% of latex beads as small as 50 nm and over 80% of the 2 µm beads via gravity filtration. This study demonstrated that PAN–AgNP membranes can be employed as antimicrobial membranes for the filtration of water in underdeveloped countries.http://www.mdpi.com/2077-0375/8/3/59polyacrylonitrileelectrospinningantibacterialsilver nanoparticleswater filtration |
| spellingShingle | Shalv Amit Parekh Rebecca Nicole David Kranthi K. R. Bannuru Lakshminarasimhan Krishnaswamy Avinash Baji Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications Membranes polyacrylonitrile electrospinning antibacterial silver nanoparticles water filtration |
| title | Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications |
| title_full | Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications |
| title_fullStr | Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications |
| title_full_unstemmed | Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications |
| title_short | Electrospun Silver Coated Polyacrylonitrile Membranes for Water Filtration Applications |
| title_sort | electrospun silver coated polyacrylonitrile membranes for water filtration applications |
| topic | polyacrylonitrile electrospinning antibacterial silver nanoparticles water filtration |
| url | http://www.mdpi.com/2077-0375/8/3/59 |
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