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Synthesis, characterization, and performance evaluation of PES / EDA ‐functionalized T i O 2 mixed matrix membranes for CO 2 / CH 4 separation
Author(s) -
Eltahir Mustafa Sara Galal Eldin,
Mannan Hafiz Abdul,
Nasir Rizwan,
Mohshim Dzeti Farhah,
Mukhtar Hilmi
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.45346
Subject(s) - membrane , chemical engineering , materials science , nanoparticle , polymer , phase inversion , thermal stability , polymer chemistry , chemistry , nanotechnology , composite material , biochemistry , engineering
Poor adhesion between hydrophobic polymers and hydrophilic inorganic fillers is a challenge that encumbers a high separation performance of mixed matrix membrane (MMM). In this study, Titanium(IV) oxide (TiO 2 ) nanoparticles were functionalized using ethylenediamine (EDA) before embedment in poly(ether sulfone) (PES) polymer matrix. MMMs were synthesized through dry phase inversion technique. Membranes morphology and nanoparticles dispersion was drastically enhanced posterior amine modification indicating an improved adhesion between the polymer and filler particles. Membranes thermal stability was likewise improved as higher degradation temperatures were perceived for PES/EDA–TiO 2 MMMs. Gas separation evaluation for pure carbon dioxide (CO 2 ) and methane (CH 4 ) gases revealed a remarkably enhanced separation performance upon amine‐grafting of TiO 2 as EDA‐TiO 2 MMMs exhibited a higher separation performance as compared to MMMs with pristine TiO 2 . The highest ideal separation factor achieved was 41.52 with CO 2 permeability of 10.11 Barrer at an optimum loading of 5% wt of EDA‐TiO 2 which is threefold higher as compared to neat PES membrane and approximately twofold higher than MMMs with pristine TiO 2 , respectively, at the same filler loading. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45346.