In Situ Cross-Linked Polymerization toward Poly(ether sulfone)/Poly(sodium acrylate) Hybrid Particles for the Removal of Environmental Toxins

Abstract

In this study, poly(ether sulfone) (PES)/poly(sodium acrylate) (PSA) hybrid particles for the removal of environmental toxins were prepared via in situ cross-linked polymerization coupled with a liquid–liquid phase separation technique. The particles were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM). Batch experiments were performed to verify the adsorption capability of the particles, and the initial concentrations and pH values of the solutions significantly affected the adsorption process. In addition, both adsorption kinetic and adsorption isotherm models were used to analyze the adsorption process of Cu2+. The modified PES particles showed high adsorption capability for Cu2+ and methylene blue (MB), and a particle column was used to further study the removal ability of environmental toxins. The results indicated that the hybrid particles had great potential to remove heavy metal ions and cationic dyes for wastewater treatment on an industrial scale.

Safe and Effective Removal of Urea by Urease-Immobilized, Carboxyl-Functionalized PES Beads with Good Reusability and Storage Stability

“…The average size of the beads was about 600 μm (the scar bar was 200 μm) according to the SEM image. Also, the cross-sectional morphology of native PES beads contained a skin layer and an inner region with a fingerlike structure, which were the typical structures and commonly observed in previous studies. , The same structures were also observed after in situ cross-linking (for PES–PAA beads) and urease immobilization (for PES–PAA–U beads). Additionally, many micropores were further formed in PES–PAA beads and PES–PAA–U beads, which might be due to the hydrophilic property of PAA and polyvinylpyrrolidone (PVP), since some short chains of PAA and PVP might be eluted during preparation .…”

Functional polyethersulfone particles for the removal of bilirubin

“…In our recent study [15], PES/poly (sodium acrylate) (PSA) hybrid particles for the removal of environmental toxins were prepared via in situ cross-linked polymerization coupled with a liquid-liquid phase separation technique. The in situ cross-linked polymerization, a special blending technique, can improve the miscibility of functional polymers and polymeric matrix.…”