Functionalization of TiO2 nanoparticles by oleic acid for enhancment of nanofiltration membrane separation performance
Paper ID : 1367-ICNS
Authors:
mojgan ebrahimi *1, samaneh bandehali2, fahime parvizian2, fatemeh ansari2
1Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Iran
2a Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Iran.
Abstract:
Abstract: In this study, the oleic acid (OA) was used to the modification of TiO2 nanoparticles. The synthesized nanoparticles were applied to the fabrication of mixed matrix nanofiltration (NF) membranes. Polyethersulfone (PES) was used as the membrane matrix. The OA-TiO2 nanoparticles were characterized by Fourier transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM). Membranes morphology was investigated by FESEM. The FTIR analysis verified the formation of OA-TiO2 nanoparticles. The SEM image of nanoparticles showed the uniform distribution of particle size in the nano-scale. The separation performance of membranes was evaluated by the pure water flux (PWF) and the rejection of Na2SO4. PWF increased 42% compared to the pure PES and reach to 18.206 L/m2h for M2 due to improve membrane hydrophilicity and better dispersion of the synthesized nanoparticles. Moreover, the Na2SO4 rejection increased 21% compared to the pure PES and reach to 81.5% due to the electrostatic repulsion mechanism.
Keywords:
Nanofiltration membrane; Polyethersulfone; Oleic acid; Titanium oxide nanoparticles
Status : Abstract Accepted (Poster Presentation)