Polysulfone nanofiltration membranes enriched with functionalized graphene oxide for dye removal from wastewater

Composite-nanofiltration membranes based on polysulfone (PSU) and functionalized graphene oxide (f-GO) were prepared for dye removal from aqueous media. Graphene oxide (GO) was introduced to enhance the performance of these membranes. GO was functionalized using an aminated heterocyclic compound, na...

Full description

Saved in:
Bibliographic Details
Published inJournal of polymer engineering Vol. 40; no. 10; pp. 833 - 841
Main Authors Abdelhamid, Ahmed E., El-Sayed, Ahmed A., Khalil, Ahmed M.
Format Journal Article
LanguageEnglish
Published De Gruyter 26.11.2020
Subjects
dye removal
graphene oxide
heterocyclic compound
nanofiltration membrane
polysulfone
Online AccessGet full text

Cover

More Information
Summary:Composite-nanofiltration membranes based on polysulfone (PSU) and functionalized graphene oxide (f-GO) were prepared for dye removal from aqueous media. Graphene oxide (GO) was introduced to enhance the performance of these membranes. GO was functionalized using an aminated heterocyclic compound, namely 6-amino-4-(4-nitrophenyl)-3-methyl-4-phenyl-4,7-dihydro-1H-pyrazolo-[3,4-b]pyridine-5carbonitrile. The f-GO was incorporated into the PSU membrane matrix in different weight ratios (0.25, 0.5, 1, 2 and 4 wt %). Characterizing the produced membranes with scanning electron microscope, Fourier Transform Infrared - Attenuated Total Reflectance (FTIR-ATR) and X-ray diffraction indicated the well dispersion of f-GO in the membrane matrix. The obtained membranes were applied to remove Congo red and methylene blue, as typical anionic and cationic dyes respectively from water. The modified membranes showed superior efficiency in terms of water flux and dye rejection upon being compared with the control membrane. The composite membranes loaded with f-GO exhibited promising dye removal efficiency for both dyes.
ISSN:0334-6447
2191-0340
DOI:10.1515/polyeng-2020-0141