dc.contributor.author |
Mokhena, Teboho C
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|
dc.contributor.author |
Luyt, AS
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|
dc.date.accessioned |
2017-07-28T09:37:17Z |
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dc.date.available |
2017-07-28T09:37:17Z |
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dc.date.issued |
2017-07 |
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dc.identifier.citation |
Mokhena, T.C., and Luyt, A.S. 2017. Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibers. Journal of Cleaner Production, 156, pp 470-479. doi.org/10.1016/j.jclepro.2017.04.07 |
en_US |
dc.identifier.issn |
0959-6526 |
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dc.identifier.uri |
http://www.sciencedirect.com/science/article/pii/S0959652617307916
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|
dc.identifier.uri |
http://hdl.handle.net/10204/9411
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|
dc.description |
Copyright 2017; Elsevier |
en_US |
dc.description.abstract |
The aim of this study was to develop a high flux three-tier composite membrane composed of a coating layer based on chitosan and chitosan with silver nanoparticles, electrospun alginate nanofibres as a midlayer and nonwoven as a mechanical support substrate. The nanofibres were prepared by electrospinning of alginate with the aid of synthetic electrospinnable polyethylene oxide (PEO), and ionically crosslinked with calcium chloride followed by chemical crosslinking using glutaraldehyde. The silver nanoparticles were synthesized using a chitosan solution and thermal treatment. The silver nanoparticles were found to be well dispersed on the coating layer, which improved the antibacterial activity of the membrane against both Gram negative and Gram positive bacteria. The chitosan and silver nanoparticles containing chitosan coated membrane displayed similar flux and a high rejection of nanoparticles (>98%) and oil (>93%). Both membranes showed a higher flux rate and oil rejection than the commercial membrane. The presence of silver nanoparticles improved the dye rejection, reaching more than 95% rejection throughout the five filtration cycles test. These observations show that the incorporation of silver nanoparticles can enhance the antibacterial activity of the membrane with a promising potential in the field of dye removal and oil separation. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier |
en_US |
dc.relation.ispartofseries |
Workflow;18961 |
|
dc.subject |
Electrospun alginate |
en_US |
dc.subject |
Chitosan |
en_US |
dc.subject |
Silver nanoparticles |
en_US |
dc.subject |
Filtration membrane |
en_US |
dc.subject |
Water purification |
en_US |
dc.title |
Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibres |
en_US |
dc.type |
Article |
en_US |
dc.identifier.apacitation |
Mokhena, T. C., & Luyt, A. (2017). Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibres. http://hdl.handle.net/10204/9411 |
en_ZA |
dc.identifier.chicagocitation |
Mokhena, Teboho C, and AS Luyt "Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibres." (2017) http://hdl.handle.net/10204/9411 |
en_ZA |
dc.identifier.vancouvercitation |
Mokhena TC, Luyt A. Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibres. 2017; http://hdl.handle.net/10204/9411. |
en_ZA |
dc.identifier.ris |
TY - Article
AU - Mokhena, Teboho C
AU - Luyt, AS
AB - The aim of this study was to develop a high flux three-tier composite membrane composed of a coating layer based on chitosan and chitosan with silver nanoparticles, electrospun alginate nanofibres as a midlayer and nonwoven as a mechanical support substrate. The nanofibres were prepared by electrospinning of alginate with the aid of synthetic electrospinnable polyethylene oxide (PEO), and ionically crosslinked with calcium chloride followed by chemical crosslinking using glutaraldehyde. The silver nanoparticles were synthesized using a chitosan solution and thermal treatment. The silver nanoparticles were found to be well dispersed on the coating layer, which improved the antibacterial activity of the membrane against both Gram negative and Gram positive bacteria. The chitosan and silver nanoparticles containing chitosan coated membrane displayed similar flux and a high rejection of nanoparticles (>98%) and oil (>93%). Both membranes showed a higher flux rate and oil rejection than the commercial membrane. The presence of silver nanoparticles improved the dye rejection, reaching more than 95% rejection throughout the five filtration cycles test. These observations show that the incorporation of silver nanoparticles can enhance the antibacterial activity of the membrane with a promising potential in the field of dye removal and oil separation.
DA - 2017-07
DB - ResearchSpace
DP - CSIR
KW - Electrospun alginate
KW - Chitosan
KW - Silver nanoparticles
KW - Filtration membrane
KW - Water purification
LK - https://researchspace.csir.co.za
PY - 2017
SM - 0959-6526
T1 - Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibres
TI - Development of multifunctional nano/ultrafiltration membrane based on a chitosan thin film on alginate electrospun nanofibres
UR - http://hdl.handle.net/10204/9411
ER -
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en_ZA |