View Article |
Evaluation of iron oxide decorated on graphene oxide (FE3O4/GO) nanohybrid incorporated in PSF membrane at different molar ratios for congo red rejection
Chai, Pui Vun1, Abdul Wahab Mohammad2, Teow, Yeit Haan3, Mahmoudi, Ebrahim4.
In this study, iron oxide decorated graphene oxide (Fe3O4/GO) with three different molar ratio of Fe decorated on GO nanoplates (Fe percentage: 5 wt%, 10wt%, 20 wt%) were synthesized. First, GO nanoplates were synthesized using natural graphite powder according to the Hummers method. Fe3O4/GO nanohybrid was then prepared by co-precipitation of FeCl3.6H2O and FeSO4.7H2O with GO in the presence of ammonia hydroxide (NH4OH). The nanohybrid was characterized using X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM). The polysulfone (PSf) mixed matrix membranes containing 0.4 wt% of the nanohybrid were prepared by phase inversion method. The effect of different molar ratio of Fe3O4/GO nanohybrid on the membrane morphology was examined by several approaches such as porosity & pore size analysis, contact angle, and Field Emission Scanning Electron Microscopy (FESEM) & Energy Dispersive X-Ray (EDX). The mixed-matrix membranes performance were evaluated by measuring the membrane permeate flux and Congo Red (CR) rejection. All the PSf-Fe3O4/GO mixed-matrix membrane showed enhanced hydrophilicity, permeate flux and CR rejection compared to the neat PSf membrane. Experiment showed that the PSf-Fe3O4/GO mixed-matrix membrane with 5 wt% of Fe decorated onto GO nanoplates was having the best performance with the highest permeate flux of 112.47 L/m2.h and the CR rejection of 97±2%.
Affiliation:
- Universiti Kebangsaan Malaysia, Malaysia
- Universiti Kebangsaan Malaysia, Malaysia
- Universiti Kebangsaan Malaysia, Malaysia
- Universiti Kebangsaan Malaysia, Malaysia
Download this article (This article has been downloaded 135 time(s))
|
|
Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
|
6 |
Immediacy Index
|
0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
|
CiteScore (1.4) |
Rank |
Q3 (Engineering (all)) |
Additional Information |
SJR (0.191) |
|
|
|