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Synthesis of Carbon Nanotube (CNT) Composite Membranes
School of Physical and Chemical Science, Flinders University, Adelaide, SA 5000, Australia
Ian Wark Research Institute, University of South Australia, Mawson Lakes, Adelaide, SA 5095, Australia
* Author to whom correspondence should be addressed.
Received: 26 November 2010 / Accepted: 23 December 2010 / Published: 27 December 2010
Abstract: Carbon nanotubes are attractive approach for designing of new membranes for advanced molecular separation because of their unique transport properties and ability to mimic biological protein channels. In this work the synthetic approach for fabrication of carbon nanotubes (CNTs) composite membranes is presented. The method is based on growth of multi walled carbon nanotubes (MWCNT) using chemical vapour deposition (CVD) on the template of nanoporous alumina (PA) membranes. The influence of experimental conditions including carbon precursor, temperature, deposition time, and PA template on CNT growth process and quality of fabricated membranes was investigated. The synthesis of CNT/PA composites with controllable nanotube dimensions such as diameters (30–150 nm), and thickness (5–100 µm), was demonstrated. The chemical composition and morphological characteristics of fabricated CNT/PA composite membranes were investigated by various characterisation techniques including scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDXS), high resolution transmission electron microscopy (HRTEM) and x-ray diffraction (XRD). Transport properties of prepared membranes were explored by diffusion of dye (Rose Bengal) used as model of hydrophilic transport molecule.
Keywords: carbon nanotubes; nanoporous alumina membranes; electrochemical anodization; catalyst free carbon precursor; transport properties
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MDPI and ACS Style
Altalhi, T.; Ginic-Markovic, M.; Han, N.; Clarke, S.; Losic, D. Synthesis of Carbon Nanotube (CNT) Composite Membranes. Membranes 2011, 1, 37-47.
Altalhi T, Ginic-Markovic M, Han N, Clarke S, Losic D. Synthesis of Carbon Nanotube (CNT) Composite Membranes. Membranes. 2011; 1(1):37-47.
Altalhi, Tariq; Ginic-Markovic, Milena; Han, Ninghui; Clarke, Stephen; Losic, Dusan. 2011. "Synthesis of Carbon Nanotube (CNT) Composite Membranes." Membranes 1, no. 1: 37-47.