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Multi-Walled Carbon Nanotubes/Polyacrylonitrile Composite as Novel Semi-Permeable Mixed Matrix Membrane in Reverse Osmosis Water Treatment Process
Abstract:novel and simple method is introduced for rapid and highly efficient water treatment by reverse osmosis (RO) method using multi-walled carbon nanotubes (MWCNTs) / polyacrylonitrile (PAN) polymer as a flexible, highly efficient, reusable and semi-permeable mixed matrix membrane (MMM). For this purpose, MWCNTs were directly synthesized and on-line purified by chemical vapor deposition (CVD) process, followed by directing the MWCNT bundles towards an ultrasonic bath, in which PAN polymer was simultaneously suspended inside a solid porous silica support in water at temperature to ~70 οC. Fabrication process of MMM was finally completed by hot isostatic pressing (HIP) process. In accordance with the analytical figures of merit, the efficiency of fabricated MMM was ~97%. The rate of water treatment process was also evaluated to 6.35 L min-1. The results reveal that, the CNT-based MMM is suitable for rapid treatment of different forms of industrial, sea, drinking and well water samples.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1079508Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2118
 W. J. Weber Jr., LeBoeuf, "Processes for advanced treatment of water," Water Sci. Technol. 1999, pp. 11-19.
 P. Gale, R.Pitchers, P. Gray, "The effect of drinking water treatment on the spatial heterogeneity of micro-organisms: implications for assessment of treatment efficiency and health risk," Water Sci. Technol. 2002, pp. 1640-1648.
 D. Strongin, Environmental Applications: "Treatment/Remediation Using Nanotechnology," An Overview Daniel Strongin Nanotechnology and the Environment; Philadelphia, 2004; Vol. 890, pp. 202-204.
 T. Y. Cath, A. E.Childress, M. Elimelech, "Forward osmosis: Principles, applications, and recent developments," J. Membr. Sci. 2006, 281 (1-2), pp. 70-87.
 Ch. Y. Tang, Q. She, W. C. L. Lay, R.Wang, A. G. Fane, "Coupled effects of internal concentration polarization and fouling on flux behavior of forward osmosis membranes during humic acid filtration," J. Membr. Sci. 2010, 354 (1-2), pp. 123-133.
 P.Kumar, V. V. Guliants, "Periodic mesoporous organic-inorganic hybrid materials: Applications in membrane separations and adsorption," Micropor. Mesopor. Mater. 2010, 132 (1-2), pp. 1-14.
 T. A.Peters, C. H. S.Poeth,N. E. Benes, H. C. W. M. Buijs, F. F.Vercauteren, J. T. F. Keurentjes, "Ceramic-supported thin PVA pervaporation membranes combining high flux and high selectivity; contradicting the flux-selectivity paradigm," J. Membr. Sci. 2006, 276 (1-2), pp. 42-50.
 R. Juang, G. Yan, "Enhanced flux and selectivity of metals through a dialysis membrane by addition of complexing agents to receiving phase," J. Membr. Sci. 2001, 186 (1), pp. 53-61.
 W. A. W. Rafizah, A. F. Ismail, "Effect of carbon molecular sieve sizing with poly(vinyl pyrrolidone) K-15 on carbon molecular sieve- polysulfone mixed matrix membrane," J. Membr. Sci. 2008, 307 (1), pp. 53-61.
 B.Zornoza, C.Téllez, J. Coronas, "Mixed matrix membranes comprising glassy polymers and dispersed mesoporous silica spheres for gas separation," J. Membr. Sci. 2011, 368 (1-2), pp. 100-109.
 Zh.Guo, S.Park, S.Wei, T.Pereira, M.Moldovan, A. B.Karki, D. P.Young, H. T. Hahn, "Flexible high-loading particle-reinforced polyurethane magnetic nanocomposite fabrication through particlesurface- initiated polymerization," Nanotechnology 2007, pp. 18-33.
 J.Echeberria, J.Ollo, M. H.Bocanegra-Bernal, A.Garcia-Reyes, C.Dom├¡nguez-Rios, A.Aguilar-Elguezabal, A. Reyes-Rojas, "Sinter and hot isostatic pressing (HIP) of multi-wall carbon nanotubes (MWCNTs) reinforced ZTA nanocomposite," Microstructure and fracture toughness. J. Refract. Met. Hard Mater. 2010, 28 (3), pp. 399-406.
 R.Gottipati, S. Mishra, "Process optimization of adsorption of Cr(VI) on activated carbons prepared from plant precursors by a two-level full factorial design," Chem. Engin. J. 2010, 160 (1), pp. 99-107.
 M. M.Amiji, B. J.Sandmann, Eds. Applied Physical Pharmacy, McGraw-Hill: Professional 2002; pp 54-57.
 Kumar, P.; Guliants, V. V. Periodic mesoporous organic-inorganic hybrid materials: Applications in membrane separations and adsorption. Micropor. Mesopor. Mater. 2010, 132 (1-2), pp.1-14.