Synthesis and Characterization of Polysulfone/Montmorillonite (PSF/MMT) Mixed Matrix Membrane for Gas Separation

2014 ◽  
Vol 925 ◽  
pp. 18-22 ◽  
Author(s):  
P.C. Oh ◽  
N.A. Mansur
Keyword(s):  
Phase Inversion ◽  
Deionized Water ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Inversion Method ◽  
Mixed Matrix ◽  
Flat Sheet ◽  
Wet Phase Inversion ◽  
Phase Inversion Method

In this paper, flat sheet polysulfone (PSF) membrane and polysulfone/montmorillonite (PSF/MMT) mixed matrix membranes with different MMT contents were prepared by dry-wet phase inversion method.N-methyl-2-pyrrolidone (NMP) and deionized water were used as a solvent and coagulant, respectively. The morphology and structure of membranes were analyzed by scanning electron microscope. Thermogravimetric analysis was also performed to examine the thermal decomposition of the synthesized membrane. Results showed that MMT had a good dispersion in the PSF matrix.

Effects of Montmorillonite (MMT) Inorganic Fillers on Polyvinylidene (PVDF) Mixed Matrix Membrane

2014 ◽  
Vol 625 ◽  
pp. 696-700 ◽  
Author(s):  
Oh Pei Ching ◽  
Mason Wong Bak Lung
Keyword(s):  
Phase Inversion ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Inversion Method ◽  
Mixed Matrix ◽  
Pvdf Membrane ◽  
Dimethyl Acetamide ◽  
Wet Phase Inversion ◽  
Phase Inversion Method ◽  
Separation Performances

Asymmetric nanoclay-polyvinylidene (PVDF) mixed matrix membranes (MMMs) were prepared by the reaction of various amount of montmorillonite (MMT) nanoclay mineral with PVDF. The MMMs were fabricated via dry-wet phase inversion method withN,N-dimethyl-acetamide (DMAc) as the solvent and ethanol as the coagulant. The fabricated MMMs were characterized by means of fourier-transform infrared (FTIR) and scanning electron microscopy (SEM). The separation performances of the prepared membranes were evaluated by pure gases (CO2and CH4). From the FTIR spectrum, MMMs exhibited new peaks compared to pristine PVDF membrane, indicating assimilation of MMT into the PVDF membrane. The morphology of the membranes depends on the clay mineral loading as confirmed by SEM. PVDF/3wt% MMT MMM showed the highest CO2permeance and CO2/CH4selectivity relative to neat PVDF membrane.

Carbon dioxide stripping through water by porous PVDF/montmorillonite hollow fiber mixed matrix membranes in a membrane contactor

RSC Advances ◽  
2015 ◽  
Vol 5 (28) ◽  
pp. 21916-21924 ◽  
Author(s):  
M. Rezaei DashtArzhandi ◽  
A. F. Ismail ◽  
T. Matsuura
Keyword(s):  
Hollow Fiber ◽  
Phase Inversion ◽  
Elevated Temperatures ◽  
Mixed Matrix Membranes ◽  
Inversion Method ◽  
Membrane Contactor ◽  
Mixed Matrix ◽  
Wet Phase Inversion ◽  
Phase Inversion Method ◽  
Matrix Membranes

Hydrophobic montmorillonite-filled polyvinylideneflouride hollow fiber mixed matrix membranes were fabricated via wet phase inversion method to meet the requirements of stripping process through membrane contactor at elevated temperatures.

scholarly journals P84/Zeolite-Carbon Composite Mixed Matrix Membrane for CO2/CH4 Separation

2019 ◽  
Vol 19 (3) ◽  
pp. 650 ◽  
Author(s):  
Triyanda Gunawan ◽  
Retno Puji Rahayu ◽  
Rika Wijiyanti ◽  
Wan Norharyati Wan Salleh ◽  
Nurul Widiastuti
Keyword(s):  
Carbon Composite ◽  
Gas Permeation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Inversion Method ◽  
Mixed Matrix ◽  
Force Microscopy ◽  
Membrane Performance ◽  
Polyimide Membrane ◽  
Phase Inversion Method

Mixed Matrix Membranes (MMMs) which consist of 0.3 wt.% Zeolite-Carbon Composite (ZCC) dispersed in BTDA-TDI/MDI (P84 co-polyimide) have been prepared through phase inversion method by using N-methyl-2-pyrrolidone (NMP) as a solvent. Membranes were characterized by X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Thermogravimetric Analysis (TGA), and Fourier Transform Infrared (FTIR). Membrane performance was measured by a single gas permeation of CO2 and CH4. The maximum permeability of CO2 and CH4, which up to 12.67 and 6.03 Barrer, respectively. P84/ZCC mixed matrix membrane also showed a great enhancement in ideal selectivity of CO2/CH4 2.10 compared to the pure P84 co-polyimide membrane.

Characterization of Polyethersulfone/Cloisite 15A Mixed Matrix Membrane for CO2/CH4 Separation

2014 ◽  
Vol 69 (9) ◽  
Author(s):  
N. M. Ismail ◽  
A. F. Ismail ◽  
A. Mustaffa
Keyword(s):  
High Performance ◽  
Mixed Matrix Membrane ◽  
Inversion Method ◽  
Evaporation Time ◽  
Heat Treated ◽  
Upstream Pressure ◽  
Wet Phase Inversion ◽  
Asymmetric Hybrid ◽  
Phase Inversion Method

Asymmetric hybrid organic-inorganic clay mineral polyethersulfone (PES) flat sheet membranes were prepared from solution containing Cloisite15A® (C15A) in the mixture of solvent and polymer. Neat PES and MMM were prepared through dry/wet phase inversion method. The newly developed membranes were characterized by means of SEM. The effect of filler addition, evaporation time and coating protocol towards the performance of the membrane was investigated. The measurement was carried out at room temperature and the upstream pressure was 3 bar while the downstream pressure was atmospheric. Experimental results showed that selectivity for MMM fabricated with 0.25 wt% clay loading at evaporation time of 40 s is lower compared to those prepared at higher evaporation time. After coating with silicone rubber solution and heat treated, the resultant membranes exhibited selectivity enhancement of CO2/CH4 from 7.9 to 28.4 for pristine PES, while PES/C15A1 and PES/C15A2 showed a selectivity improvement of 2.29 to 18.72 and 10.24 to 33.49 each. Optimum evaporation time and appropriate coating and heat treatment have significant contribution in developing high performance MMM for gas CO2/CH4 separation.    

scholarly journals Fabrication and Characterization of Polysulfone-Zeolite ZSM-5 Mixed Matrix Membrane for Heavy Metal Ion Removal Application

2017 ◽  
Vol 18 (1) ◽  
Author(s):  
G. P. Syed Ibrahim ◽  
Arun M. Isloor ◽  
Amir Al Ahmed ◽  
B. Lakshmi
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Pure Water ◽  
Water Flux ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Inversion Method ◽  
Mixed Matrix ◽  
Matrix Membranes

Mixed matrix membranes (MMMs) of Polysulfone (PSf)-Zeolite ZSM-5 (ZZSM-5) were prepared by phase inversion method with a dose ranging from 1.0 to 4.0 Wt. % with polyvinylpyrrolidone (PVP) as the fore forming agent. The prepared mixed matrix membranes were scrutinized for their permeation, hydrophilicity and anti-fouling nature. Characterization of the membrane was carried out by Electrokinetic analyzer. The heavy metal ions rejection experiment has been carried out and the results manifested that, the PZM-4 membrane exhibits higher pure water flux of 348.88 L/m2 h, contact angle of 72.7o and the heavy meals rejection of Pb2+ (98.54%) and of Cd2+ (95.32%) ions. Taken as a whole, the modified PSf-ZZSM-5 ultrafiltration membranes are the attractive candidate for the water treatment.

scholarly journals Multiple Amine-Contained POSS-Functionalized Organosilica Membranes for Gas Separation

Membranes ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 194
Author(s):  
Xiuxiu Ren ◽  
Masakoto Kanezashi ◽  
Meng Guo ◽  
Rong Xu ◽  
Jing Zhong ◽  
...  
Keyword(s):  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Separation Performance ◽  
Hybrid Membranes ◽  
Mixed Matrix ◽  
Translation Model ◽  
Good Thermal Stability ◽  
Oligomeric Silsesquioxane

A new polyhedral oligomeric silsesquioxane (POSS) designed with eight –(CH2)3–NH–(CH2)2–NH2 groups (PNEN) at its apexes was used as nanocomposite uploading into 1,2-bis(triethoxysilyl)ethane (BTESE)-derived organosilica to prepare mixed matrix membranes (MMMs) for gas separation. The mixtures of BTESE-PNEN were uniform with particle size of around 31 nm, which is larger than that of pure BTESE sols. The characterization of thermogravimetric (TG) and gas permeance indicates good thermal stability. A similar amine-contained material of 3-aminopropyltriethoxysilane (APTES) was doped into BTESE to prepare hybrid membranes through a copolymerized strategy as comparison. The pore size of the BTESE-PNEN membrane evaluated through a modified gas-translation model was larger than that of the BTESE-APTES hybrid membrane at the same concentration of additions, which resulted in different separation performance. The low values of Ep(CO2)-Ep(N2) and Ep(N2) for the BTESE-PNEN membrane at a low concentration of PNEN were close to those of copolymerized BTESE-APTES-related hybrid membranes, which illustrates a potential CO2 separation performance by using a mixed matrix membrane strategy with multiple amine POSS as particles.

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