Improved separation and antifouling properties of thin-film composite nanofiltration membrane by the incorporation of cGO

Improved antifouling performance of polyester thin film nanofiber composite membranes prepared by interfacial polymerization

“…For instance, the permeability of the membrane PA TFNC1_5 was up to two orders of magnitude higher than that of lab-made PA TFNC membranes prepared with similar IP conditions [33,34], whereas its separation factor was 21 to 30% lower. The membrane PA TFC_5 exhibited a very similar separation factor (only 1.5% higher α f value) than that of the lab-made PA TFC membranes with 7 to 32% higher permeability [4,5].…”

“…However, the main obstacle that restricts the application of membranes in water treatment is membrane fouling, which usually lowers the water productivity, deteriorates membrane separation capability (i.e. reduction of the permeate quality), shortens membrane lifespan and consequently, increases the operation and maintenance costs [1][2][3][4]. Fouling originates from the interaction between a membrane surface and foulant(s), thus, it is strongly influenced by the physicochemical properties of the membrane surface such as pore size and its geometry, charge density, roughness and hydrophilicity [3][4][5][6].…”

“…Polysulfone (PSU) [3][4][5][15][16][17] and PES [6][7][8][11][12][13] are the most employed supporting materials, mainly due to their low price, ease of processing, and good chemical, thermal and mechanical resistance. Recently, electrospun nanofiber membranes (ENMs) were successfully used as an alternative support to fabricate TFC membranes [22,[33][34][35].…”

A novel nanofiltration membrane with simultaneously enhanced antifouling and antibacterial properties

“…[5][6][7] The main factors affecting membrane fouling are roughness and hydrophilicity, as well as the chemical and physical properties of the feed water. 8,9 The fouling extent of the membrane varies, depending on the structural properties of the membrane. 10,11 In this sense, the incorporation of ller materials in the membrane structure is an appropriate strategy to mitigate the fouling extent.…”

Preparation and characterization of an amphiphilic polyamide nanofiltration membrane with improved antifouling properties by two-step surface modification method

“…[1][2][3] Thin-lm composite (TFC) membranes are the most popular commercial NF membranes which usually consist of an ultra-thin selective layer upon the surface of a porous at sheet substrate membrane through the interfacial polymerization (IP) process, using diamine and acyl chlorides. 4,5 However, membrane fouling is a bottleneck for the practical application of NF in water and wastewater treatment. Fouling usually causes a signicant loss of productivity and increased operational cost.…”