An amphiphilic graft copolymer, consisting of a polysulfone (PSf) main chain and poly(n-isopropylacrylamide) (PNIPM) grafts, was synthesized via combination atom transfer radical polymerization click chemistry. The copolymer's structure characteristics (PNIPM length content) substantially impacts membrane morphology performance, were optimized firstly. resulting copolymer PSf-g-PNIPM with the b...

Abstract In the present work, we developed a hybrid membrane via phase inversion process composed from polysulfone (PSF), cellulose nanocrystals (CNCs), and polyaniline (PANI) polymers for oil/water separation. Multiple techniques were used to characterize membranes. Results demonstrated that under gravity-driven process, blended PSF with CNC PANI had greatly higher water flux of 31.10, 29.01 2...

One of the limiting factors in good performance of forward osmosis (FO) membranes is the internal concentration polarization (ICP). To reduce ICP, thin film nanocomposite forward osmosis (TFN-FO) membranes were fabricated by adding different amounts of graphene oxide (GO) nanoplates (0-1 wt. %) to polymer matrix of polysulfone (PSf) substrate. The prepared nanocomposite membranes exhibited both...

This work reports the synthesis and characterization of a hybrid molecularly imprinted polymer (MIP) membrane for removal of methylene blue (MB) in an aqueous environment. MB-MIP powders were hybridized into a polymer membrane (cellulose acetate (CA) and polysulfone (PSf)) after it was ground and sieved (using 90 µm sieve). MB-MIP membranes were prepared using a phase inversion process. The MB-...

Global warming and environmental degradation have stimulated the drive towards capture of large point source carbon emissions reducing high energy intensity industrial processes. Mixed membranes infused with porosity silica sodalite are potential useful for pre-combustion CO2 capture. However, development quality mixed matrix is a challenge. In this study, (SSOD) polysulfone (PSF) were develope...

Abstract Rapid urbanization and industrialization have created tremendous stress on fresh water sources. Moreover, discharge of industrial wastewater has left public health environment under high potential risks. In this paper, chitosan-functionalized graphene oxide (GO-CH) was synthesized incorporated into polysulfone (Psf) ultrafiltration membranes. The concentration the nanocomposite ratio G...

Background: Natural organic matter (NOM) in drinking water sources has always been regarded as a precursor for the formation of trihalomethanes (THMs), haloacetic acids (HAAs), and carcinogenic properties. This study aimed to fabricate characterize nanohybrid ultrafiltration membrane (PSF/ZnO) evaluate its efficiency NOM removal from water. Methods: Nanohybrid membranes with ratios 0, 1, 2, 3 4...

For the surface adsorption process, a wide range of studies have been carried out to describe process. However, no extensive study has investigate pre-treatment method effect on separation The purpose present is improve performance membrane process in treatment oily wastewater. this purpose, effects pre-treatment, modification, and operational parameters were investigated microfiltration system...

Herein we present a new approach for the complete removal of Cr(VI) species, through reduction of Cr(VI) to Cr(III), followed by adsorption of Cr(III). Reduction of chromium from water is an important challenge, as Cr(IV) is one of the most toxic substances emitted from industrial processes. Chitosan (CS) thin films were developed on plain polysulfone (PSf) and PSf/TiO2 membrane substrates by a...

uv-induced grafting technique was used as a flexible method for surface modification of polysulfone (psf) ultrafiltration (uf) membranes in order to prepare hydrophilic nanofiltration (nf) membranes. flat sheet polysulfone (psf) ultrafiltration membranes were prepared via phase inversion method. n-methylene-2-pyrrolidone (nmp) and polyethylene glycol (peg) of three different molecular weights (...