Author/Authors :
Omidvar، Maryam نويسنده Master of Business Management, Ershad university, Tehran, Iran , , Soltanieh، Mohammad نويسنده Department of Chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran , , Mousavi، Mahmoud نويسنده , , Saljoughi، Ehsan نويسنده Department of Chemical Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran , , Moarefian، Ahmad نويسنده 1Department of Chemical Engineering, College of Science, Shahrood Branch, Islamic Azad University, Shahrood, Iran , , Saffaran، Hoda نويسنده Department of Chemical Engineering, Quchan Branch, Islamic Azad University, Quchan, Iran ,
Abstract :
Asymmetric polyethersulfone (PES) nanofiltration membranes were prepared via phase inversion technique. PES
polymer, Brij 58 as surfactant additive, polyvinylpyrrolidone (PVP) as pore former and 1-methyl-2-pyrrolidone (NMP)
as solvent were used in preparation of the casting solutions. Distillated water was used as the gelation media. The
scanning electron microscopy (SEM) images and measurements of contact angle (CA) and zeta potential were used
to characterize the prepared membranes. Also performance of the membranes was examined by determining the
pure water flux (PWF) and pharmaceuticals rejection. The addition of Brij 58 to the casting solution resulted in
formation of the membranes with higher thickness and more porous structure in the sublayer in comparison with
the net PES membrane. The surface hydrophilicity of the membranes was remarkably enhanced via the presence of
Brij 58 in the casting solution, so that, the contact angel diminished from 74.7° to 28.3° with adding 6 wt. % of Brij
58 to the casting solution. The addition of Brij 58 to the casting solution resulted in formation of the membranes
with superior PWF and higher rejection of amoxicillin and ceftriaxone in comparison with the pure PES membrane.
