TY - JOUR ID - 35820 TI - Multiwalled Carbon Nanotubes/Polyethersulfone Mixed Matrix Nanofiltration Membrane for the removal of cobalt ion JO - Journal of Water and Environmental Nanotechnology JA - JWENT LA - en SN - 2476-7204 AU - Nouri, Alireza AU - Yavari, Ramin AU - Aroon, Mohammad Ali AU - Yousefi, Taher AD - Membrane Research Laboratory, Caspian Faculty of Engineering, College of Engineering, University of Tehran, Guilan, Iran AD - Material and Nuclear Fuel Scholl, Nuclear Science and Technology Research Institute, (NSTRI), Tehran, Iran AD - Caspian Faculty of Engineering, College of Engineering, University of Tehran, Iran Y1 - 2019 PY - 2019 VL - 4 IS - 2 SP - 97 EP - 108 KW - Cobalt KW - Multi-walled carbon nanotubes KW - Nanofiltration KW - Polymeric Mixed Matrix Membranes KW - Removal DO - 10.22090/jwent.2019.02.002 N2 - In the present research work, the mixed matrix membranes (MMMs) containing various amount of polyethersulfone (PES) and functionalized multi-walled carbon nanotubes (fMWCNTs) were fabricated and used to investigate the removal of cobalt ions from wastewater by nanofiltration process. Pristine MWCNTs and fMWCNTs were characterized by Fourier transformed infrared spectroscopy and thermogravimetric analysis. FESEM analysis revealed that the mixed matrix membranes have less surface defects and better membrane performance compared with neat polymeric in the removal of cobalt ions. Permeation test results showed that the MMM containing 22 wt. % PES and 0.6 wt. % fMWCNTs (with outer diameter of 10-20 nm) has the optimum performance from the permeability and cobalt removal point of view. In continuation, the effect of pressure, feed flow rate, cobalt concentration, permeation test time and feed solution pH on the removal of cobalt by selected the MMM was investigated. The obtained results indicated that only pressure has considerable effect on permeation flux. However, all parameters showed different influence on rejection percent of cobalt ions. UR - https://www.jwent.net/article_35820.html L1 - https://www.jwent.net/article_35820_c6da181826ae9f0eaa6c3756baeeb1f1.pdf ER -