Please use this identifier to cite or link to this item:
Title: Incorporation of CoIII acetylacetonate and SNW-1 nanoparticles to tailor O2/N2 separation performance of mixed-matrix membrane
Authors: Samarasinghe, S. A. S. C.
Chuah, Chong Yang
Li, Wen
Sethunga, G. S. M. D. P.
Wang, Rong
Bae, Tae-Hyun
Keywords: Engineering::Chemical engineering
Issue Date: 2019
Source: Samarasinghe, S. A. S. C., Chuah, C. Y., Li, W., Sethunga, G. S. M. D. P., Wang, R., & Bae, T.-H. (2019). Incorporation of CoIII acetylacetonate and SNW-1 nanoparticles to tailor O2/N2 separation performance of mixed-matrix membrane. Separation and Purification Technology, 223, 133–141. doi:10.1016/j.seppur.2019.04.075
Journal: Separation and Purification Technology
Abstract: Mixed-matrix membranes containing a porous organic framework (SNW-1 nanoparticles) and a cobalt-based complex (Co(acac)3) were fabricated using the solution-casting technique for potential applications in O2/N2 separation. The mixed-matrix membranes did not show any appreciable defects. In the following mixture gas permeation testing conducted with a binary mixture composed of 21% O2 and 79% N2 at 1 bar feed pressure and 35 °C, the mixed-matrix membranes containing SNW-1 nanoparticles showed an enhanced O2 permeability, whereas Co(acac)3 improved the O2/N2 selectivity. Hence, with a combination of both nanoparticles and a Cobalt complex in a polymer matrix, a clear synergistic enhancement in O2/N2 separation properties was reported, in which O2 permeability and O2/N2 selectivity were escalated by 33% and 18%, respectively. Solubility-diffusivity analysis in the mixed-matrix membranes revealed that SNW-1 and Co(acac)3 can improve O2 diffusivity and O2 solubility, respectively, resulting in an enhancement of both O2 permeability and O2/N2 selectivity for membranes containing both the nanoparticles and the cobalt complex. Future efforts will be focused on developing asymmetric hollow fiber membranes with thin skin layer comprising both SNW-1 and Co(acac)3.
ISSN: 1383-5866
DOI: 10.1016/j.seppur.2019.04.075
Schools: School of Chemical and Biomedical Engineering 
Interdisciplinary Graduate School (IGS) 
Research Centres: Nanyang Environment and Water Research Institute 
Singapore Membrane Technology Centre 
Rights: © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

Citations 10

Updated on Jun 4, 2023

Web of ScienceTM
Citations 10

Updated on Jun 3, 2023

Page view(s)

Updated on Jun 6, 2023

Download(s) 50

Updated on Jun 6, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.