PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes
A major limitation in using membrane-based separation processes is the loss of performance due to membrane fouling. This drawback can be addressed thanks to surface modification treatments. A new and promising surface modification using green chemistry has been recently investigated. This modificati...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-04-01
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| Series: | Membranes |
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| Online Access: | http://www.mdpi.com/2077-0375/6/2/23 |
| _version_ | 1797757361288380416 |
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| author | Norhan Nady |
| author_facet | Norhan Nady |
| author_sort | Norhan Nady |
| collection | DOAJ |
| description | A major limitation in using membrane-based separation processes is the loss of performance due to membrane fouling. This drawback can be addressed thanks to surface modification treatments. A new and promising surface modification using green chemistry has been recently investigated. This modification is carried out at room temperature and in aqueous medium using green catalyst (enzyme) and nontoxic modifier, which can be safely labelled “green surface modification”. This modification can be considered as a nucleus of new generation of antifouling membranes and surfaces. In the current research, ferulic acid modifier and laccase bio-catalyst were used to make poly(ethersulfone) (PES) membrane less vulnerable to protein adsorption. The blank and modified PES membranes are evaluated based on e.g., their flux and protein repellence. Both the blank and the modified PES membranes (or laminated PES on silicon dioxide surface) are characterized using many techniques e.g., SEM, EDX, XPS and SPM, etc. The pure water flux of the most modified membranes was reduced by 10% on average relative to the blank membrane, and around a 94% reduction in protein adsorption was determined. In the conclusions section, a comparison between three modifiers—ferulic acid, and two other previously used modifiers (4-hydroxybenzoic acid and gallic acid)—is presented. |
| first_indexed | 2024-03-12T18:14:47Z |
| format | Article |
| id | doaj.art-f3cdf35a4694426dae45214b9793d2f4 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-12T18:14:47Z |
| publishDate | 2016-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-f3cdf35a4694426dae45214b9793d2f42023-08-02T09:12:19ZengMDPI AGMembranes2077-03752016-04-01622310.3390/membranes6020023membranes6020023PES Surface Modification Using Green Chemistry: New Generation of Antifouling MembranesNorhan Nady0Polymeric Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Boarg El-Arab City 21934, Alexandria, EgyptA major limitation in using membrane-based separation processes is the loss of performance due to membrane fouling. This drawback can be addressed thanks to surface modification treatments. A new and promising surface modification using green chemistry has been recently investigated. This modification is carried out at room temperature and in aqueous medium using green catalyst (enzyme) and nontoxic modifier, which can be safely labelled “green surface modification”. This modification can be considered as a nucleus of new generation of antifouling membranes and surfaces. In the current research, ferulic acid modifier and laccase bio-catalyst were used to make poly(ethersulfone) (PES) membrane less vulnerable to protein adsorption. The blank and modified PES membranes are evaluated based on e.g., their flux and protein repellence. Both the blank and the modified PES membranes (or laminated PES on silicon dioxide surface) are characterized using many techniques e.g., SEM, EDX, XPS and SPM, etc. The pure water flux of the most modified membranes was reduced by 10% on average relative to the blank membrane, and around a 94% reduction in protein adsorption was determined. In the conclusions section, a comparison between three modifiers—ferulic acid, and two other previously used modifiers (4-hydroxybenzoic acid and gallic acid)—is presented.http://www.mdpi.com/2077-0375/6/2/23enzyme-catalyzed modificationpoly(ethersulfone) membraneprotein repellenceantifouling membranesferulic acidlaccasegreen chemistry |
| spellingShingle | Norhan Nady PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes Membranes enzyme-catalyzed modification poly(ethersulfone) membrane protein repellence antifouling membranes ferulic acid laccase green chemistry |
| title | PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes |
| title_full | PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes |
| title_fullStr | PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes |
| title_full_unstemmed | PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes |
| title_short | PES Surface Modification Using Green Chemistry: New Generation of Antifouling Membranes |
| title_sort | pes surface modification using green chemistry new generation of antifouling membranes |
| topic | enzyme-catalyzed modification poly(ethersulfone) membrane protein repellence antifouling membranes ferulic acid laccase green chemistry |
| url | http://www.mdpi.com/2077-0375/6/2/23 |
| work_keys_str_mv | AT norhannady pessurfacemodificationusinggreenchemistrynewgenerationofantifoulingmembranes |