Polyphenylsulfone/zinc ion‐exchanged zeolite Y nanofiltration mixed matrix membrane for water desalination

Abstract

In the present study, zinc ion-exchanged zeolite Y (ZnY) was incorporated as a dispersed phase into polyphenylsulfone (PPSU) polymer matrix to prepare PPSU/ZnY porous mixed matrix membranes (MMMs) with enhanced separation properties. Various MMMs with different ZnY contents (0, 0.25, 0.5, 0.75, 1, 1.5, and 3 wt.%) were fabricated using phase inversion method. The morphologies of prepared membranes were characterized by using scanning electron microscopy (SEM) and atomic force microscopy (AFM) analysis. Fourier transform infrared (FTIR) and X-ray diffraction (XRD) were used to investigate the chemical structures and microstructural properties, respectively. Differential scanning calorimetry (DSC) analysis and tensile test were done to investi-

Development of High Flux Nanocomposite Polyphenylsulfone/Oxidized Multiwalled Carbon Nanotubes Membranes for Ultrafiltration Using the Systems with Critical Solution Temperatures

“…These advantages result in using PPSU membranes in ultrafiltration [ 7 , 8 , 9 ], nanofiltration [ 10 , 11 , 12 , 13 ], forward osmosis [ 14 ], pervaporation [ 15 , 16 , 17 ], and gas separation [ 16 , 18 , 19 ], in membrane contactors [ 20 ] and proton exchange membrane fuel cells [ 21 ]. PPSU membranes were developed for water treatment [ 22 , 23 , 24 , 25 ], water desalination [ 14 , 26 ], for dye removal [ 3 , 21 , 27 , 28 , 29 ], oil in water separation [ 30 , 31 , 32 ], water purification from natural organic matter (NOM) [ 33 ], removal of heavy metal ions [ 10 , 34 ], CO 2 /CH 4 gas separation [ 18 ], removal of free fatty acid from crude palm oil [ 35 ], removal of kinetic hydrate inhibitor from water [ 36 , 37 ], the separation of biobutanol from ABE mixtures [ 5 ] and cumene from water via pervaporation [ 17 ].…”