Fachrul Razi, Isao Sawada, Yoshikage Ohmukai, Tatsuo Maruyama, Hideto Matsuyama
Surface modification of hollow fiber polyethersulfone (PES) membranes by UV irradiation induced graft polymerization of (2-dimethylamino)ethyl methacrylate (DMAEMAq) was developed. The grafted layers of the DMAEMAq monomer on the PES membrane surfaces were characterized using attenuated total reflectance Fourier transform infrared analysis and X-ray photoelectron spectroscopy. The performances of the modified PES membranes (PES-g-DMAEMAq) were investigated in terms of both organic fouling and biofouling. Filtration of bovine serum albumin (BSA) as a model protein and Pseudomonas putida (P. putida) as a model bacteria were carried out to evaluate organic antifouling and antibiofouling performances, respectively. The results showed that the membranes surface functionalized with the DMAEMAq monomer showed higher organic antifouling than unmodified PES membranes. A shaking flask test using P. putida also revealed that a PES-g-DMAEMAq membrane with a grafting amount of 4.8 mg/cm2 showed higher biofouling resistance. That is, almost 99.9% of bacteria were killed by contact with the PES-g-DMAEMAq membrane. Thus, surface functionalization of PES membranes with the DMAEMAq monomer was quite useful for improving antibiofouling and organic antifouling properties.
Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, Nada-ku, Kobe 657-8501, 1-1 Rokkodai-cho, Japan; Department of Chemical Engineering, Syiah Kuala University, Banda Aceh, Indonesia
Research at a Glance
Register to unlock
Topics & SDG Alignment
Register to unlock
Collaboration
Register to unlock
Author Profile (Selected)
Register to unlock
References Overview
Register to unlock
Journal & Source
Register to unlock
Metadata & Integrity
Register to unlock