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.

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.

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.

Novel Nanoparticles Incorporated Polyvinylidene Fluoride Ultrafiltration Membrane

2013 ◽  
Vol 746 ◽  
pp. 390-393
Author(s):  
Qiong Zhi Gao ◽  
Hong Qiang Li ◽  
Xing Rong Zeng
Keyword(s):  
Polyvinylidene Fluoride ◽  
Phase Inversion ◽  
Water Flux ◽  
Silver Ions ◽  
Inversion Method ◽  
Hybrid Films ◽  
Ultrafiltration Membranes ◽  
Pvdf Membrane ◽  
Basic Performance ◽  
Phase Inversion Method

In this study, polyvinylidene fluoride (PVDF) composite ultrafiltration membranes were prepared by a phase inversion method, N,N-dimethylacetamide (DMAc) was used as solvent and polyvinylpyrrolidone (PVP) was used as dispersant, nanoTiO2 and AgNO3 were used as addictive materials. With different doping content of nanoTiO2 and silver ions, those hybrid films have different functions and structure. The basic performance and photocatalytic properties of those ultrafiltration membranes were studied in detail. The experiment results show that adding nanosized TiO2 particles will make the porosity of PVDF membrane increase, adding silver ion with low content can not improve water flux and porosity of membranes, however, nanoTiO2 and silver ions doping together can effectively improve the photocatalytic degradation rate.

Rheology Assessment of PSf/ NMP Solution and its Influence on Membrane Structure

2012 ◽  
Vol 326-328 ◽  
pp. 422-427 ◽  
Author(s):  
Priscila Anadão ◽  
Rafael Rezende Montes ◽  
Henrique Souza de Santis ◽  
Hélio Wiebeck
Keyword(s):  
Membrane Structure ◽  
Phase Inversion ◽  
Molar Mass ◽  
Polymer Concentration ◽  
Inversion Method ◽  
Asymmetric Membranes ◽  
Wet Phase Inversion ◽  
Microfiltration Membranes ◽  
Skin Formation ◽  
Phase Inversion Method

Asymmetric polysulfone membranes were prepared by wet-phase inversion method from casting solutions consisting of PSf/NMP and water as non-solvent. The effects of polymer concentration and molar mass were investigated by rheological studies. Moreover, membranes were characterized by scanning electron microscope (SEM). It was found that polymer solutions containing between 22 and 25 wt% PSf/NMP originated microfiltration membranes. The use of a higher mass molar polysulfone has been shown to reduce diameter pore and to maintain morphology. All the results were interrelated into a discussion of the skin formation of asymmetric membranes.

Sign in / Sign up

Export Citation Format

Share Document