Lee, Jieun Ye, Yun Ward, Antony J. Zhou, Cuifeng Chen, Vicki Minett, Andrew I. Lee, Sanghyup Liu, Zongwen Chae, So-Ryong Shi, Jeffrey 2024-01-20T04:04:32Z 2024-01-20T04:04:32Z 2022-01-25 2016-05 1383-5866 https://pubs.kist.re.kr/handle/201004/124086 Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m(2)/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNT5/PANI complex. MWCNT5/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h. (C) 2016 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal Article 10.1016/j.seppur.2016.02.032 1 SEPARATION AND PURIFICATION TECHNOLOGY, v.163, pp.109 - 119 SEPARATION AND PURIFICATION TECHNOLOGY 163 109 119 N scie scopus 000374076700013 2-s2.0-84962308038 Engineering, Chemical Engineering Article MATRIX NANOCOMPOSITE MEMBRANES DRINKING-WATER TREATMENT ULTRAFILTRATION MEMBRANES FOULING CHARACTERISTICS CONDUCTING POLYMERS SURFACE-PROPERTIES ACTIVATED CARBONS UV SPECTROSCOPY NOM FRACTIONS POLYANILINE Carbon nanotube membrane MWCNTs/PANI complex NOM removal UF membrane In-situ polymerisation