Effect of polymer type on characterization and filtration performances of multi-walled carbon nanotubes (MWCNT)-COOH-based polymeric mixed matrix membranes

Multi-walled carbon nanotubes (MWCNTs) can be used for the fabrication of mixed matrix polymeric membranes that can enhance filtration perfomances of the membranes by modifying membrane surface properties. In this study, detailed characterization and filtration performances of MWCNTs functionalized...

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Bibliographic Details
Published in:Environmental technology 2018-05, Vol.39 (10), p.1226-1237
Main Authors: Sengur-Tasdemir, Reyhan, Mokkapati, Venkata R. S. S., Koseoglu-Imer, Derya Y., Koyuncu, Ismail
Format: Article
Language:English
Subjects:
Activated sludge
Atomic force microscopy
Contact angle
Data processing
Dextran
E coli
Electron microscopy
Escherichia coli
Fabrication
Filtration
membrane fabrication
Membranes
Membranes, Artificial
mixed matrix membrane
Morphology
Multi wall carbon nanotubes
Multi-walled carbon nanotube
MWCNT-COOH
Nanotechnology
Nanotubes
Nanotubes, Carbon
Performance tests
Polyethersulfones
Polymers
Scanning electron microscopy
Surface properties
Ultrasonic testing
Water Purification
Xanthan
Xanthan gum
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Summary:Multi-walled carbon nanotubes (MWCNTs) can be used for the fabrication of mixed matrix polymeric membranes that can enhance filtration perfomances of the membranes by modifying membrane surface properties. In this study, detailed characterization and filtration performances of MWCNTs functionalized with COOH group, blended into polymeric flat-sheet membranes were investigated using different polymer types. Morphological characterization was carried out using atomic force microscopy, scanning electron microscopy and contact angle measurements. For filtration performance tests, protein, dextran, E. coli suspension, Xanthan Gum and real activated sludge solutions were used. Experimental data and analyses revealed that Polyethersulfone (PES) + MWCNT-COOH mixed matrix membranes have superior performance abilities compared to other tested membranes.
ISSN:0959-3330
1479-487X
1479-487X
DOI:10.1080/09593330.2017.1325409