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CNT/SPEEK Nano‐Composite Membranes: Toward Improved Properties
Author(s) -
Gahlot Swati,
Sharma Prem P.,
Jha Prafulla K.,
Kulshrestha Vaibhav
Publication year - 2017
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201700048
Subject(s) - materials science , composite material , membrane , composite number , nano , chemistry , biochemistry
This study describes the preparation, characterization and performance of carboxylated carbon nanotubes (c‐CNT) incorporated sulfonated poly ether ether ketone (SPEEK) membrane for nanofiltration application. Carboxylation was done to purify and to graft functional groups onto CNT walls. Composite membranes were synthesized by dispersing different weight fraction (0.1, 0.2 and 0.5%) of carboxylated Carbon nanotubes as filler in SPEEK matrix using N‐N' Dimethylacetamide as a solvent. Surface morphology, thermal and mechanical strength of the resulting membranes has been characterized through respective techniques. SEM and AFM images demonstrate the dispersed c‐CNT in polymer matrix. Prepared nanohybrid membranes were examined for water flux measurements and salt rejection experiments. Addition of c‐CNT in SPEEK not only enhanced the flux and salt rejection performance but also improved the thermo‐mechanical properties of the hybrid membranes as compared to SPEEK membrane.