Plasma surface modification of nanofiltration (NF) thin-film composite (TFC) membranes to improve anti organic fouling

Preparation of fouling resistant PSF flat sheet UF membrane using amphiphilic polyurethane macromolecules

“…Mainly, two methods are used to improve the hydrophilicity of the membrane. The first method consists in surface modification of existing membranes by means of surface coating, redox initiated grafting, plasma treatment and UV induced graft polymerization [9][10][11]. These techniques can drastically change the surface pore size and their distribution.…”

“…Commercial UF membranes are fabricated from various polymers like polypropylene, polyvinylidene fluoride, cellulose acetate, polyacrylonitrile, polysulfone (PSF) and polyethersulfone (PES) [7]. Among these polymers PSF is largely used as membrane material because of its good physicochemical stability, effectivity in a wide pH range (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13), thermal stability (≈ 80°C), resistance to chlorine (≈200 ppm) and oxidation. The solubility of PSF is another big advantage; it allows co-dissolution of other polymers to fabricate blended membranes.…”

Application of nano TiO2 modified hollow fiber membranes in algal membrane bioreactors for high-density algae cultivation and wastewater polishing

“…A common strategy to mitigate membrane fouling is to modify membrane surface to increase hydrophilicity. Accordingly, many methods have been developed including surface coating (Madaeni and Ghaemi, 2007), plasma treatment (Kim et al, 2011), and nanomaterial incorporation (Yin et al, 2013b). For example, Madaeni and Ghaemi coated TiO 2 particles on poly vinyl alcohol (PVA) top layer of the reverse osmosis membrane, thus introducing self-cleaning mechanism under UV irradiation to minimize fouling.…”

Surface modification of PTMSP membranes by plasma treatment: Asymmetry of transport in organic solvent nanofiltration

“…Plasma treatment can lead either to hydrophilization or hydrophobization of the membrane surface [56][57][58][59][60][61][62]. It should be mentioned that, in most publications, the highfrequency discharge plasma treatment was traditionally used.…”