Preparation and characterization of PES-xerogel nanocomposite ultra-filtration membrane

Shamsodin, Mozhgan; Nasiri, Masoud; Fazli, Mostafa

doi:10.1007/s10570-018-1971-4

Cited by 4 publications

(1 citation statement)

References 30 publications

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“…Figure S1 illustrates the FTIR patterns of composite membranes containing pure PES, 0.25, 0.5, 0.75, and 1.0 wt % of AlFu nanoparticles, where the peaks at 1097 and 1148 cm –1 represent stretching band of SO; 1232, 1249, and 1336 cm –1 correspond to the C–O–C bond stretching; and 1484 and 1569 cm –1 can be attributed to the benzene ring stretching, which is in good consonance with the literature. , As can be seen in this figure, there is no discrepancy between neat PES membrane and other MMM patterns and similar peaks can be observed in the range of 600–3600 cm –1 . It can be concluded that these nanoparticles could not create a new functional group in the mixed-matrix membrane structure.…”

Section: Resultssupporting

confidence: 83%

Enhanced Hydrophilicity and Water Flux of Poly(ether sulfone) Membranes in the Presence of Aluminum Fumarate Metal–Organic Framework Nanoparticles: Preparation and Characterization

Abdi

Nasiri

2019

ACS Appl. Mater. Interfaces

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The aim of this study is to examine the effect of the addition of aluminum fumarate (AlFu) nanoparticles on the properties of poly(ether sulfone) (PES) membranes, where the AlFu nanoparticles were synthesized as the nanofillers with the metal−organic framework and their structure was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), and field emission scanning electron microscopy (FESEM) analyses. Subsequently, PES/AlFu mixed-matrix membranes (MMMs) were fabricated in different weight percentages of nanofiller through the phase inversion method and the membrane characterization was accomplished by FTIR, XRD, FESEM, transmission electron microscopy, atomic force microscopy, energy-dispersive X-ray spectroscopy, and elemental mapping analyses. The effect of the addition of nanoparticles on the membrane properties was investigated by measuring the membrane hydrophilicity, pure water flux, solute rejection, and fouling resistance using a dead-end cell under constant pressure and bovine serum albumin as a foulant. The molecular weight cutoff (MWCO) of MMMs was measured by the rejection of poly(ethylene glycol) in various molecular weights, and the membrane surface roughness, porosity, and mean pore radius were calculated. The results showed that AlFu nanoparticles increased the hydrophilicity and porosity of the neat PES membranes and consequently increased the water permeability such that MMM including 0.75 wt % of AlFu possessed the maximum porosity (62.2%), mean pore radius (10.2 nm), and MWCO (154 kDa). Furthermore, this membrane exhibits a superlative flux recovery and minimal total resistance in the antifouling properties examinations.

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Section: Resultssupporting

confidence: 83%