Physicochemical characteristics of polysulfone nanofiber membranes with iron oxide nanoparticles via electrospinning

Abstract

Hydrophilicity is one of the ideal properties for water treatment membrane. In addition, higher surface area with a porous structure results in extraordinary permeability and selectivity, thus making it a good candidate for water permeability. This study used iron oxide nanoparticles (IONPs) as polysulfone (PSf) membrane nanofillers to enhance the physicochemical properties. Nanofiber membranes were characterized in terms of morphology, wettability, and pure water permeability (PWP). The concentration of IONPs was varied from 0.5% to 2.0% (w/v). From the scanning electron microscope images, all produced membranes were smooth and contain bead-free nanofibers. The produced nanofiber membrane with 1% (w/v) of IONPs concentration was found to be optimum since it had the highest porosity, lower contact angle, and desirable fiber thickness and diameter. In order to find the best PSf solution concentration, the loadings of PSf were varied from 18% to 27% (w/v). The PSf/IONPs with 25% (w/v) provided the best results in terms of fiber thickness and diameter, porosity and morphology. The contact angle also confirmed that in the presence of IONPs, the nanofiber structure produced with 25% PSf was less hydrophobic and had the highest PWP (70.27 L/m 2 h bar).

The adsorptive behaviour of electrospun hydrophobic polymers for optimized uptake of estrogenic sex hormones from aqueous media: kinetics, thermodynamics, and reusability study

“…In addition, the characteristic absorption peaks at 1584 and 1487 cm −1 are attributed to the benzene rings. 55 The main characterized peaks are present at 1584, 1245, 1323, 1154, 1106, and 1013 cm −1 , corresponding to the stretching caused by aromatic C C, C-O-C (ether group), and O = S = O bonds. 56…”

“…The spectra peak intensity for PSU revealed at 1323 and 1293 cm −1 corresponds to the asymmetric absorption of the S═O group, while the peak at 1169 cm −1 belongs to the symmetric absorption of the S═O group. In addition, the characteristic absorption peaks at 1584 and 1487 cm −1 are attributed to the benzene rings 55 . The main characterized peaks are present at 1584, 1245, 1323, 1154, 1106, and 1013 cm −1 , corresponding to the stretching caused by aromatic CC, C‐O‐C (ether group), and O = S = O bonds 56 …”

Preparation and characterization of bioactive polyvinylpyrrolidone film via electrospinning technique

“…Recently, there are great interesting to incorporate metal and nonmetal nanoparticles such as silver, copper, carbon, nickel oxide, iron oxide, titanium dioxide, and zinc oxide with the electrospun polymeric nano/micro fibers in order to increase the efficiency and enhance new functions (Pant et al, 2019; Rosid et al, 2022). Electrospun fibers considered an ideal carrier to the nanoparticles in order to avoid mass aggregation and permit homogeneous distribution (Villarreal‐Gómez et al, 2021).…”