Functionalization of polysulfone hollow fiber membranes with amphiphilic β-cyclodextrin and their applications for the removal of endocrine disrupting plasticizer

• Published in: Journal of membrane science 2012-08, Vol.409-410, p.75-81
• Main Authors: Choi, Sung Hak, Chung, Jae Woo, Priestley, Rodney D., Kwak, Seung-Yeop
• Format: Article
• Language: English
• Subjects: Amphiphilic; aqueous solutions; artificial membranes; beta-cyclodextrin; chlorides; Cyclodextrin; drinking water; Endocrine disrupting chemicals; fatty acids; permeability; phthalates; plasticizers; Polysulfone; Surface modification; Ultrafiltration
• ISSN: 0376-7388; 1873-3123
• DOI: 10.1016/j.memsci.2012.03.037

[Display omitted] ► Amphiphilic β-CD was synthesized and combined to PSf membrane by phase inversion. ► Amphiphilic β-CD migrated to the membrane surfaces via self-assembly. ► PSf/CD membranes removed DEHP effectively and provided good water permeability. For the removal of endocrine disrupting chemicals (EDCs), such as di-(2-ethylhexyl) phthalate (DEHP), from drinking water, we prepared β-cyclodextrin included polysulfone (PSf/CD) hollow fiber membranes. β-Cyclodextrin (β-CD) was modified with fatty acid chlorides to produce amphiphilic β-CDs. PSf/CD hollow fiber membrane was prepared from polysulfone (PSf) dope solution with those amphiphilic β-CDs by phase inversion process. In the membrane formation process, the amphiphilic β-CDs migrated to the membrane surfaces via hydrophilic- and hydrophobic-mediated self-assembly. The performances of PSf/CD hollow fiber membranes were measured and the results showed that PSf/CD hollow fiber membranes can effectively remove DEHP from aqueous solutions and provided good water permeability.