TY - JOUR
T1 - Cyclomatrix polyphosphazene organic solvent nanofiltration membranes
AU - Radmanesh, Farzaneh
AU - Bargeman, Gerrald
AU - Benes, Nieck E.
N1 - Funding Information:
This work is part of the GENESIS project and the authors acknowledge the financial support from the European Union's Horizon 2020 Research and Innovation Program under the Grant Agreement No. 760899. The authors would like to thank Moritz Junker from Membrane Science and Technology group at the University of Twente, Wouter Nielen from The European Membrane Institute Twente, and Tao Wang from the Membrane Science and Technology group at the University of Twente for their contribution to partly performing and analyzing MWCO and zeta potential measurements. The authors thank Circa Group for kindly providing the Cyrene.
Funding Information:
This work is part of the GENESIS project and the authors acknowledge the financial support from the European Union's Horizon 2020 Research and Innovation Program under the Grant Agreement No. 760899 . The authors would like to thank Moritz Junker from Membrane Science and Technology group at the University of Twente, Wouter Nielen from The European Membrane Institute Twente, and Tao Wang from the Membrane Science and Technology group at the University of Twente for their contribution to partly performing and analyzing MWCO and zeta potential measurements. The authors thank Circa Group for kindly providing the Cyrene.
Publisher Copyright:
© 2022 The Authors
PY - 2023/2/15
Y1 - 2023/2/15
N2 - In this work, we report the synthesis and characteristics of cyclomatrix polyphosphazene membranes based on interfacial polymerization between 1,1-tris(4-hydroxyphenyl)ethane and hexachlorocyclotriphosphazene on top of alumina or polyacrylonitrile supports. The potential of alumina-supported thin film composite membranes as organic solvent nanofiltration membranes has been confirmed with a polystyrene-based molecular weight cutoff of 347 ± 120 Da and 503 ± 220 Da in acetone and toluene, respectively. Also, the resulting alumina-supported TFC membrane showed a methylene blue rejection (Mw = 319 g mol−1) of 98.2 ± 2.3%, 92 ± 1.7%, and 93 ± 0.5% in water, ethanol, and acetone, respectively. Furthermore, a thin film composite membrane has been prepared with a polyacrylonitrile support via interfacial polymerization to validate the preparation technique for polymeric supports and facilitate industrial implementation. The resulting membrane showed higher permeance and lower rejection than the alumina-supported membrane due to the presence of pinholes in the selective layer on top of the polyacrylonitrile supports. Our results clearly show the great potential of cyclomatrix polyphosphazene membranes as organic solvent nanofiltration membranes. However, for polyacrylonitrile-supported membranes, the preparation method needs further investigation.
AB - In this work, we report the synthesis and characteristics of cyclomatrix polyphosphazene membranes based on interfacial polymerization between 1,1-tris(4-hydroxyphenyl)ethane and hexachlorocyclotriphosphazene on top of alumina or polyacrylonitrile supports. The potential of alumina-supported thin film composite membranes as organic solvent nanofiltration membranes has been confirmed with a polystyrene-based molecular weight cutoff of 347 ± 120 Da and 503 ± 220 Da in acetone and toluene, respectively. Also, the resulting alumina-supported TFC membrane showed a methylene blue rejection (Mw = 319 g mol−1) of 98.2 ± 2.3%, 92 ± 1.7%, and 93 ± 0.5% in water, ethanol, and acetone, respectively. Furthermore, a thin film composite membrane has been prepared with a polyacrylonitrile support via interfacial polymerization to validate the preparation technique for polymeric supports and facilitate industrial implementation. The resulting membrane showed higher permeance and lower rejection than the alumina-supported membrane due to the presence of pinholes in the selective layer on top of the polyacrylonitrile supports. Our results clearly show the great potential of cyclomatrix polyphosphazene membranes as organic solvent nanofiltration membranes. However, for polyacrylonitrile-supported membranes, the preparation method needs further investigation.
KW - Interfacial polymerization
KW - Nanofiltration
KW - Organic solvent
KW - Polyphosphazene
KW - UT-Hybrid-D
UR - http://www.scopus.com/inward/record.url?scp=85145559257&partnerID=8YFLogxK
U2 - 10.1016/j.memsci.2022.121215
DO - 10.1016/j.memsci.2022.121215
M3 - Article
AN - SCOPUS:85145559257
SN - 0376-7388
VL - 668
JO - Journal of membrane science
JF - Journal of membrane science
M1 - 121215
ER -