Thin film composite membranes with modified polysulfone supports for organic solvent nanofiltration

Performance enhancement of thin‐film composite membranes in water desalination process by wood sawdust

“…As can be observed, all the substrates have a typical asymmetric structure consisting of an approximately top dense skin layer, a porous sublayer and finger‐like pores along with several macrovoids or cavities at the bottom. This structure is related to the strong affinity and miscibility between polymer solvent (NMP) and nonsolvent (DI water) in coagulation bath . Furthermore, it is noteworthy that sawdust is a lingo‐cellulosic materials consisting of cellulose, hemicellulose, and lignin .…”

Improved performance of polyamide thin-film composite nanofiltration membrane by using polyetersulfone/polyaniline membrane as the substrate

“…In addition to adjusting the structure properties of the PA layer, physicochemical properties of the substrates also affect the separation performance of the PA TFC membrane [7,[14][15][16][17][18][19][20]. Polysulfone (PSf) or polyetersulfone (PES) porous support membranes, with surface pore sizes ranging from 1 nm to 300 nm, are frequently used as the substrates for the PA TFC membrane fabrication.…”

“…Recently, the impacts of substrate properties on the TFC membrane formation and resulting performance have been gaining attention, although limited research has been published. Several studies were conducted to investigate the correlation between the properties of substrates and the structure of the PA active layer [7,[14][15][16][17][18][19]. It is believed that the porous support membrane not only provides a mechanical layer for the TFC membrane but also influences the formation and structure of the PA layer.…”

Crosslinked polybenzimidazole membranes for organic solvent nanofiltration (OSN): Analysis of crosslinking reaction mechanism and effects of reaction parameters

“…Among them is the membrane stability in harsh organic solvents. Research on this challenge has been focused on finding new suitable materials [4,5] or improving existing ones [6,7,8,9,10,11,12] mainly based on knowledge from other membrane processes, e.g. aqueous nanofiltration (NF), reverse osmosis (RO) and gas separation.…”