Abstract
In the present work, β-cyclodextrin was grafted to the surface of ZSM-5 via 2,3-epoxypropyl trimethylammonium chloride (ETMAC) and epichlorohydrin (EPI) as the bridging agent by ion exchange and sequential grafting. The mixed matrix membranes were prepared using polyurethane (PU) and ZSM-5 before and after modification. Modified ZSM-5 and corresponding MMM were characterized by Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and scanning electron microscope (SEM). These membranes were applied for the removal of phenol from aqueous solution in pervaporation process. The results showed that modified ZSM-5 dispersed homogeneously in polymer. The flux and pervaporation separation index of PU increased greatly with a limited decrease in selectivity by the addition of modified ZSM-5. The increased feed temperature enhanced both the flux and separation factor of PU and modified PU membranes.
Acknowledgments
The authors gratefully acknowledge the financial support provided by Beijing Natural Science Foundation (L140009), The Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions (CIT&TCD201404032), and National Science Foundation of China (20906001).
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©2017 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original articles
- 3D printing of hydroxyapatite polymer-based composites for bone tissue engineering
- Studies on the effects of 4,4′-dihydroxyphenyl on crystallization and melting behavior of poly (butylene terephthalate)
- Effect of the particulate morphology of resin on the gelation process of PVC plastisols
- Effect of aluminum nitride concentration on different physical properties of low density polyethylene based nanocomposites
- Application of polyurethane membrane with surface modified ZSM-5 for pervaporation of phenol/water mixture
- Synergistic effects of hybridization of carbon black and carbon nanotubes on the mechanical properties and thermal conductivity of a rubber blend system
- Electrical conductivity of carbon nanotube/polypropylene composites prepared through microlayer extrusion technology
- Mechanical performance and electromagnetic shielding effectiveness of composites based on Ag-plating cellulose micro-nano fibers and epoxy
- Effect of screw configuration on the dispersion of nanofillers in thermoset polymers
- Study of a novel co-rotating non-twin screw extruder in processing flame retardant polymer materials
- Thermal influences in the star-pre-distributor of a spiral mandrel die
Artikel in diesem Heft
- Frontmatter
- Original articles
- 3D printing of hydroxyapatite polymer-based composites for bone tissue engineering
- Studies on the effects of 4,4′-dihydroxyphenyl on crystallization and melting behavior of poly (butylene terephthalate)
- Effect of the particulate morphology of resin on the gelation process of PVC plastisols
- Effect of aluminum nitride concentration on different physical properties of low density polyethylene based nanocomposites
- Application of polyurethane membrane with surface modified ZSM-5 for pervaporation of phenol/water mixture
- Synergistic effects of hybridization of carbon black and carbon nanotubes on the mechanical properties and thermal conductivity of a rubber blend system
- Electrical conductivity of carbon nanotube/polypropylene composites prepared through microlayer extrusion technology
- Mechanical performance and electromagnetic shielding effectiveness of composites based on Ag-plating cellulose micro-nano fibers and epoxy
- Effect of screw configuration on the dispersion of nanofillers in thermoset polymers
- Study of a novel co-rotating non-twin screw extruder in processing flame retardant polymer materials
- Thermal influences in the star-pre-distributor of a spiral mandrel die