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Title: Fabrication and characterization of a boehmite nanoparticle impregnated electrospun fiber membrane for removal of metal ions
Authors: Hota, G.
Kumar, B.R.
Ng, W.J. 
Ramakrishna, S. 
Issue Date: Jan-2008
Citation: Hota, G., Kumar, B.R., Ng, W.J., Ramakrishna, S. (2008-01). Fabrication and characterization of a boehmite nanoparticle impregnated electrospun fiber membrane for removal of metal ions. Journal of Materials Science 43 (1) : 212-217. ScholarBank@NUS Repository.
Abstract: The fabrication of a composite electrospun fiber membrane with sorptive characteristics intended for removal of heavy metals was investigated. The electrospun fiber membrane was impregnated with nano-boehmite particles. The latter had been selected to increase surface area of the active component. Cd (II) was chosen as the challenge bivalent cation. The sorption capacity of the nano-boehmite was studied as a function of pH and time. Electrospinning was used to prepare the composite submicron fiber membrane impregnated with boehmite nanoparticles. The later was blended with the polymer to produce a homogenous mixture before electrospinning. Two polymers, the hydrophobic/PCL/and hydrophilic/Nylon-6/, were chosen to serve as the support for the boehmite. The nanoparticles and resulting composite membranes were characterized using SEM, TEM, and XRD techniques. XRD data confirmed the presence of nano-boehmite particles in the nanofibers membrane. The membranes so prepared were challenged with aqueous solutions of Cd in batch isotherm tests. Atomic absorption spectroscopy results show sorption of Cd (II) by boehmite impregnated electospun membrane was possible and a capacity of 0.20 mg/g was achieved. © 2007 Springer Science+Business Media, LLC.
Source Title: Journal of Materials Science
ISSN: 00222461
DOI: 10.1007/s10853-007-2142-4
Appears in Collections:Staff Publications

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