Development of polycarbonate based zeolite 4A filled mixed matrix gas separation membranes

Date

2007-10-15

Author

SEN, Deger
Kalıpçılar, Halil
Yılmaz, Levent

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

230
views

0
downloads

The incorporation of fillers, blending with multifunctional low molecular-weight additives and their combination are investigated as alternatives for modifying the permselective properties of polymeric gas separation membranes. For this purpose, pure polycarbonate (PC), PC/p-nitroaniline (pNA), PC/zeolite 4A and PC/pNA/zeolite 4A mixed matrix membranes were prepared by solvent-evaporation method using dichloromethane as solvent. Zeolite 4A was the filler and pNA was the low molecular-weight additive with multifunctional groups. The concentrations of pNA and zeolite 4A in the casting solution were changed between 1-5% (w/w) and 5-30% (w/w), respectively. Membranes were characterized by SEM, DSC and single gas permeability measurements of H-2, CO2, O-2, N-2 and CH4. Incorporation of zeolites to PC/pNA increased the T-g but the incorporation of them to pure PC had no effect on the T, suggesting that pNA induced an interaction between zeolite 4A and polymer matrix. The C/pNA/zeolite 4A membranes had lower permeabilities but higher ideal selectivities than pure PC and PC/zeolite 4A membranes. The membrane with 1% (w/w) pNA and 20% (w/w) zeolite 4A showed a selectivity of 121.3 for H-2 over CH4 and 51.8 for CO2 over CH4, whereas the H-2/CH4 and CO2/CH4 selectivities for pure PC membranes were 40.9 and 23.6, respectively. The gas separation performance of the PC membranes was remarkably improved with the incorporation of zeolite 4A and small amounts of pNA into the membrane formulation.

Subject Keywords

Mixed matrix membrane, Polycarbonate, P-nitroaniline, Zeolite 4A, Glass transition temperature

URI

https://hdl.handle.net/11511/48405

Journal

JOURNAL OF MEMBRANE SCIENCE

DOI

https://doi.org/10.1016/j.memsci.2007.07.010

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

Modification of graphene oxide by ATRP: A pH-responsive additive in membrane for separation of salts, dyes and heavy metals Mahmoudian, Mehdi; Ghasemıkouchameshgı, Mahmoud; Hosseinzadeh, Mohammadtaghi (2018-04-01) Incorporation of hydrophilic multifunctional compounds in to the polymeric membrane's matrix is one of the useful methods for modification of mixed matrix membranes. Therefore, in this study, preparation and properties of polyethersulfone (PES) mixed matrix membranes with hydrolyzed polymethylmethacrylate (PMMA(hyd)) grafted on graphene oxide (GO-PMMA(hyd)) is investigated as an effective additive to improve permeability and antifouling properties. In this respect, grafting of PMMA(hyd) on the GO surface is...
Development of a laccase based paper biosensor for the detection of phenolic compounds Öktem, Hüseyin Avni; EYİDOĞAN, FÜSUN; Bayrac, Ceren; Yilmaz, Remziye (2012-04-01) Laccase (E.C.1.10.3.2, p-benzenediol: oxygen oxidoreductase) catalyzes the oxidation of various aromatic compounds, particularly phenols, which are organic pollutants, present in wastewater. With this specific function this enzyme has had a great impact on the development of biosensors for both environmentally important pollutants and clinically relevant metabolites. There are different detection procedures such as chromatographic and spectrophotometric methods to detect the presence of phenolic compounds i...
Development of alumina supported ternary mixed matrix membranes for separation of H-2/light-alkane mixtures Topuz, Berna; Yılmaz, Levent; Kalıpçılar, Halil (2012-10-01) Ternary component mixed matrix membrane was prepared from PES, SAPO-34 and 2-hydroxy 5-methyl aniline on a macroporous alumina disk by the solvent evaporation method in order to investigate the effect of existence of an inorganic support. The membrane and its pure PES/Alumina counterpart were characterized by single gas permeability measurements of H-2, CH4, C2H6 and C3H8. The corresponding H-2/CH4 selectivities of membranes were 71.3 and 41. The membranes were also used to separate equimolar mixtures of H-...
Production of inorganic charge selective layers for mesoscopic perovskite solar cells İçli, Kerem Çağatay; Özenbaş, Ahmet Macit; Akata Kurç, Burcu; Department of Micro and Nanotechnology (2017) In this work, nanoparticles of lithium doped nickel oxide (NiO) were synthesized by common wet chemistry methods like precipitation, ultrasonic spray pyrolysis and flame spray pyrolysis methods. Synthesized nanoparticles were employed in fully metal oxide mesoscopic perovskite based solar cells. Lithium doping of NiO was achieved by ultrasonic spray pyrolysis method and flame spray pyrolysis methods. Flame spray pyrolysis method was used to synthesize yttrium doped titanium dioxide (TiO2) and magnesium oxid...
Preparation and performance assessment of binary and ternary PES-SAPO 34-HMA based gas separation membranes Karatay, Elif; Kalıpçılar, Halil; Yılmaz, Levent (2010-11-15) The effect of low molecular weight additive (LMWA) loading on the gas permeation properties of pure PES and PES/SAPO-34 membranes was investigated. 2-hydroxy 5-methyl aniline (HMA) was selected as LMWA. Membranes were prepared by solvent-evaporation method and annealed above the glass transition temperature (T-g) of PES. They were characterized by single gas permeability measurements of H-2, CO2, and CH4 as well as scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). The H-2/CH4 ...

Citation Formats

D. SEN, H. Kalıpçılar, and L. Yılmaz, “Development of polycarbonate based zeolite 4A filled mixed matrix gas separation membranes,” JOURNAL OF MEMBRANE SCIENCE, pp. 194–203, 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48405.