The effects of magnetic nanoparticles in nanofiltration membranes

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 264

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شناسه ملی سند علمی:

NSCEI09_086

تاریخ نمایه سازی: 19 آبان 1398

چکیده مقاله:

Fouling is one of the major challenges in nanofiltration membranes that lead to poor separation performance due to the presence of pollutants on the membrane surface. For overcoming this challenge, several methods including coating, additives blending, physically and chemically surface modification, and grafting have been used. Among these methods, organic and inorganic nanomaterials such as graphene oxide, metal oxides, zeolites, silica, carbon nanotubes, etc. are attractive for the production of high-performance polymeric nanofiltration membranes. In recent years, the use of magnetic nanoparticles has been considered because of the high ability for adsorption of heavy metals. Magnetic nanoparticles as hydrophilic materials respond to an external field. Therefore, by adsorption or repulsion mechanisms have a significant effect on the removal of heavy metals. Moreover, magnetic nanoparticles, due to their high hydrophilicity, enhance the membrane hydrophilicity properties and reduce membrane fouling, which has been confirmed by many studies. The used magnetic materials in membrane processes include cobalt nanoparticles, iron nanoparticles, magnetic oxides, and other fabricated magnetic nanoparticles. Iron oxide as a metal oxide nanoparticle has been widely used as an additive to optimize the nanofiltration membranes and has a special effect on the membrane separation performance among metal oxide nanoparticles.In this study, it was tried to investigate the effect of iron oxide nanoparticles on physicochemical properties and separation performance, and antifouling properties of nanofiltration membranes.

نویسندگان

A.R Moghadassi

Department of Chemical Engineering, Arak university, Arak, Iran

S Moradi

Department of Chemical Engineering, Arak university, Arak, Iran

S Bandehali

Department of Chemical Engineering, Arak university, Arak, Iran