Effect of polymer type on characterization and filtration performances of multi-walled carbon nanotubes (MWCNT)-COOH-based polymeric mixed matrix membranes. Issue 10 (19th May 2018)

• Record Type: Journal Article
• Authors: Sengur-Tasdemir, Reyhan; Mokkapati, Venkata R. S. S.; Koseoglu-Imer, Derya Y.; Koyuncu, Ismail
• Is Part Of: Environmental technology. Volume 39:Issue 10(2018)
• Page Start: 1226
• Page End: 1237
• Publication Date: 2018-05-19
• Subjects: Multi-walled carbon nanotube -- MWCNT-COOH -- mixed matrix membrane -- membrane fabrication -- filtration; Environmental engineering -- Periodicals; Environmental protection -- Periodicals; 628.05
• DOI: 10.1080/09593330.2017.1325409
• Languages: English
• ISSNs: 0959-3330

Abstract

ABSTRACT: 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.