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CO 2 separation performance by chitosan/tetraethylenepentamine/poly(ether sulfone) composite membrane
Author(s) -
Prasad Babul,
Mandal Bishnupada
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.45206
Subject(s) - permeance , thermogravimetric analysis , membrane , permeation , fourier transform infrared spectroscopy , scanning electron microscope , chitosan , materials science , polymer chemistry , chemical engineering , thermal stability , gas separation , analytical chemistry (journal) , composite number , nuclear chemistry , chemistry , chromatography , composite material , biochemistry , engineering
CO 2 separation from CO 2 /N 2 (20:80) gas mixture has been demonstrated by tetraethylenepentamine blended with chitosan (CS‐TEPA) membrane. Optimization of CS and TEPA weight ratio were carried out based on characterization details involving thermogravimetric analysis, Fourier transform infrared spectroscopy, X‐ray diffraction, atomic force microscope, and field emission scanning electron microscope. Effects of water flow rate, pressure, and temperature were concurrently studied on CS‐TEPA membranes through gas permeation. Almost twofold increase in CO 2 permeance (24.7 GPU) was detected in CS blend with 30% (w/w) of TEPA (CS70) as compared to pure CS membrane (12.5 GPU). CS70 yielded CO 2 /N 2 selectivity of 80 whereas CS demonstrated a maximum of 54 at 90 °C. The membrane also exhibited improved stability at temperatures less than 120 °C which was evident from TGA isotherm trace. The proposed composite membrane can be a promising candidate for flue gas separation. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017 , 134 , 45206.