Polyamide nanofiber membranes functionalized with zinc phthalocyanines
Electrospinning is an efficient method for the production of polyamide nanofiber membranes that are suitable for water filtration. Previous studies have shown that nanofiber membranes have high clean water permeability. The pathogen removal efficiency can be improved by functionalization with (organ...
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| Format: | Article |
| Language: | English |
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Wiley
2016
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| Online Access: | http://onlinelibrary.wiley.com.access.msu.ac.zw:2048/doi/10.1002/app.40486/full |
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| author | Goethals, Annelies Mugadza, Tawanda Arslanoglu, Yasin Zugle, Ruphino Antunes, Edith Van Hulle, Stijn W. H. Nyokong, Tebello De Clerck, Karen |
| author_facet | Goethals, Annelies Mugadza, Tawanda Arslanoglu, Yasin Zugle, Ruphino Antunes, Edith Van Hulle, Stijn W. H. Nyokong, Tebello De Clerck, Karen |
| author_sort | Goethals, Annelies |
| collection | DSpace |
| description | Electrospinning is an efficient method for the production of polyamide nanofiber membranes that are suitable for water filtration. Previous studies have shown that nanofiber membranes have high clean water permeability. The pathogen removal efficiency can be improved by functionalization with (organic) biocides. However, these membranes, like other membranes, are vulnerable to fouling which reduces the filtration efficiency. Therefore the present article investigates the potential of zinc phthalocyanines, which can produce singlet oxygen in the presence of visible light, as a functionalizing agent. The polyamide nanofiber membranes were functionalized with phthalocyanines using both a pre-functionalizing and post-functionalizing method. Only the post-functionalization method shows to result in nanofiber membranes capable of producing singlet oxygen. After 30 min 45% of 1,2-diphenylisobenzofuran (DPBF), used as an oxygen quencher, was removed by reaction with singlet oxygen. This resulted in a removal rate of 0.33 mol DBPF mol−1Zn min−1. During short term leaching tests, phthalocyanines could not be detected. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40486. |
| format | Article |
| id | ir-11408-1052 |
| institution | My University |
| language | English |
| publishDate | 2016 |
| publisher | Wiley |
| record_format | dspace |
| spelling | ir-11408-10522022-06-27T13:49:06Z Polyamide nanofiber membranes functionalized with zinc phthalocyanines Goethals, Annelies Mugadza, Tawanda Arslanoglu, Yasin Zugle, Ruphino Antunes, Edith Van Hulle, Stijn W. H. Nyokong, Tebello De Clerck, Karen Polyamide nanofiber zinc phthalocyanines Electrospinning is an efficient method for the production of polyamide nanofiber membranes that are suitable for water filtration. Previous studies have shown that nanofiber membranes have high clean water permeability. The pathogen removal efficiency can be improved by functionalization with (organic) biocides. However, these membranes, like other membranes, are vulnerable to fouling which reduces the filtration efficiency. Therefore the present article investigates the potential of zinc phthalocyanines, which can produce singlet oxygen in the presence of visible light, as a functionalizing agent. The polyamide nanofiber membranes were functionalized with phthalocyanines using both a pre-functionalizing and post-functionalizing method. Only the post-functionalization method shows to result in nanofiber membranes capable of producing singlet oxygen. After 30 min 45% of 1,2-diphenylisobenzofuran (DPBF), used as an oxygen quencher, was removed by reaction with singlet oxygen. This resulted in a removal rate of 0.33 mol DBPF mol−1Zn min−1. During short term leaching tests, phthalocyanines could not be detected. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40486. 2016-04-26T12:51:22Z 2016-04-26T12:51:22Z 2014 Article 0021-8995 http://onlinelibrary.wiley.com.access.msu.ac.zw:2048/doi/10.1002/app.40486/full en Journal of Applied Polymer Science;Vol. 131, no.13 open Wiley |
| spellingShingle | Polyamide nanofiber zinc phthalocyanines Goethals, Annelies Mugadza, Tawanda Arslanoglu, Yasin Zugle, Ruphino Antunes, Edith Van Hulle, Stijn W. H. Nyokong, Tebello De Clerck, Karen Polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| title | Polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| title_full | Polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| title_fullStr | Polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| title_full_unstemmed | Polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| title_short | Polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| title_sort | polyamide nanofiber membranes functionalized with zinc phthalocyanines |
| topic | Polyamide nanofiber zinc phthalocyanines |
| url | http://onlinelibrary.wiley.com.access.msu.ac.zw:2048/doi/10.1002/app.40486/full |
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