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Title: Porosimetric membrane characterization techniques: a review
Authors: Tanis-Kanbur, Melike Begum
Peinador, Rene I.
Calvo, Jose I.
Hernández, Antonio
Chew, Jia Wei
Keywords: Engineering::Chemical engineering
Issue Date: 2021
Source: Tanis-Kanbur, M. B., Peinador, R. I., Calvo, J. I., Hernández, A. & Chew, J. W. (2021). Porosimetric membrane characterization techniques: a review. Journal of Membrane Science, 619, 118750-.
Project: A20G2a0070
Journal: Journal of Membrane Science
Abstract: Membrane technology is of significant importance in water treatment applications, and also gaining momentum in other separations due to advantages such as environmentally friendly operation, less complex and lower-cost operating conditions compared to alternative options. To provide for sustainable and efficient membrane-based applications, the selection of appropriate membranes is crucial. Such a selection is based on membrane characterization, which offers critical information on parameters such as porosity, average pore size and pore size distribution (PSD). The two main classes of characterization methods are direct and indirect, with the latter having a theoretical basis, being more affordable, and also generally being able to characterize larger membrane areas compared to the direct techniques. This study reviews the indirect membrane characterization methods, the key theoretical backgrounds of which are the Young-Laplace equation, Kelvin equation, Gibbs-Thomson equation, and spectroscopy-based equations. The mathematical details are first presented, followed by the measurement details and experimental requirements, and finally the studies on membrane characterization via indirect methods. The advantages and limitations of each method are also discussed. For a complete understanding of the membrane, indirect methods may need to be complemented with direct ones and also with appropriate retention experiments of the feeds of interest.
ISSN: 0376-7388
DOI: 10.1016/j.memsci.2020.118750
Schools: School of Chemical and Biomedical Engineering 
Interdisciplinary Graduate School (IGS) 
Research Centres: Nanyang Environment and Water Research Institute 
Singapore Membrane Technology Centre 
Rights: © 2020 Elsevier B.V. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:IGS Journal Articles
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