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Fabrication and characterization of affordable hydrophobic ceramic hollow fibre membrane for contacting processes

Abdulhameed, M. A. and Othman, M. H. D. and Joda, H. N. A. A. and Ismail, A. F. and Matsuura, T. and Harun, Z. and Rahman, M. A. and Puteh, M. H. and Jaafar, J. (2017) Fabrication and characterization of affordable hydrophobic ceramic hollow fibre membrane for contacting processes. Journal of Advanced Ceramics, 6 (4). pp. 330-340. ISSN 2226-4108

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Abstract

Affordable hydrophobic hollow fibre membranes were prepared using kaolin and alumina based ceramic powders via a combined phase inversion and sintering technique, followed by a grafting with fluoroalkylsilane (FAS). The crux of the matter in this paper is to study the changes in the properties of the hollow fibre membranes (gas permeation, mechanical strength, pore size, porosity, tortuosity, morphology, and contact angle) by the addition of alumina (Al2O3) to the pure kaolin with mono or multiparticle sizes. By varying the overall loading and particle size of alumina addition, different morphologies of the membranes were obtained due to the differences in the path lengths during phase inversion process for each solvent and nonsolvent exchange. The successful grafting with FAS was evidenced by the increase in contact angle from nearly equal to zero degree before grafting to 140° after grafting. Kaolin–alumina-4, one of the hollow fibres fabricated in this work, achieved a mean pore size of 0.25 μm with the bending strength of 96.4 MPa and high nitrogen permeance of 2.3×10-5 mol·m-2·Pa-1·s-1, which makes the hollow fibre most suitable for the membrane contactor application.

Item Type:Article
Uncontrolled Keywords:hydrophobic hollow fibre membranes, alumina based ceramic powders
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:76381
Deposited By: Widya Wahid
Deposited On:30 Jun 2018 06:25
Last Modified:30 Jun 2018 06:25

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