PIM-1/Holey Graphene Oxide Mixed Matrix Membranes for Gas Separation: Unveiling the Role of Holes

2021 ◽  
Author(s):  
Jose Miguel Luque-Alled ◽  
Marzieh Tamaddondar ◽  
Andrew B. Foster ◽  
Peter M. Budd ◽  
Patricia Gorgojo
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Effective gas separation through graphene oxide containing mixed matrix membranes

2018 ◽  
Vol 135 (21) ◽  
pp. 46271 ◽  
Author(s):  
Elahe Ahmadi Feijani ◽  
Ahmad Tavassoli ◽  
Hossein Mahdavi ◽  
Hossein Molavi
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

Synthesis and gas permselectivity of CuBTC–GO–PVDF mixed matrix membranes

2018 ◽  
Vol 42 (14) ◽  
pp. 12013-12023 ◽  
Author(s):  
Elahe Ahmadi Feijani ◽  
Hossein Mahdavi ◽  
Ahmad Tavassoli
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Metal Organic Framework ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Metal Organic ◽  
Gas Separation Performance ◽  
Organic Framework ◽  
Matrix Membranes

A CuBTC (copper(ii) benzene-1,3,5-tricarboxylate) metal organic framework (MOF) and graphene oxide (GO) nanosheets were introduced into a semi-crystalline PVDF to produce mixed matrix membranes (MMMs) to promote gas separation performance.

Mixed matrix membranes incorporated with reduced graphene oxide (rGO) and zeolitic imidazole framework-8 (ZIF-8) nanofillers for gas separation

2019 ◽  
Vol 270 ◽  
pp. 419-427 ◽  
Author(s):  
Najihah Jamil ◽  
Nur Hidayati Othman ◽  
Nur Hashimah Alias ◽  
Munawar Zaman Shahruddin ◽  
Rosyiela Azwa Roslan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Reduced Graphene ◽  
Matrix Membranes

Graphene oxide/polysulfone hollow fiber mixed matrix membranes for gas separation

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89130-89139 ◽  
Author(s):  
K. Zahri ◽  
K. C. Wong ◽  
P. S. Goh ◽  
A. F. Ismail
Keyword(s):  
Graphene Oxide ◽  
Gas Separation ◽  
Hollow Fiber ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Matrix Membranes

The application of graphene oxide as a nano-filler in polysulfone asymmetric hollow fiber mixed matrix membranes for CO2 removal.

scholarly journals 6FDA-DAM:DABA Co-Polyimide Mixed Matrix Membranes with GO and ZIF-8 Mixtures for Effective CO2/CH4 Separation

Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 668
Author(s):  
Anand Jain ◽  
Mohd Zamidi Ahmad ◽  
Audrey Linkès ◽  
Violeta Martin-Gil ◽  
Roberto Castro-Muñoz ◽  
...  
Keyword(s):  
Particle Size ◽  
Graphene Oxide ◽  
Gas Separation ◽  
Filler Loading ◽  
Mixed Matrix Membranes ◽  
Condensation Polymerization ◽  
Mixed Matrix ◽  
Feed Pressure ◽  
Poly Condensation ◽  
Matrix Membranes

This work presents the gas separation evaluation of 6FDA-DAM:DABA (3:1) co-polyimide and its enhanced mixed matrix membranes (MMMs) with graphene oxide (GO) and ZIF-8 (particle size of <40 nm). The 6FDA-copolyimide was obtained through two-stage poly-condensation polymerization, while the ZIF-8 nanoparticles were synthesized using the dry and wet method. The MMMs were preliminarily prepared with 1–4 wt.% GO and 5–15 wt.% ZIF-8 filler loading independently. Based on the best performing GO MMM, the study proceeded with making MMMs based on the mixtures of GO and ZIF-8 with a fixed 1 wt.% GO content (related to the polymer matrix) and varied ZIF-8 loadings. All the materials were characterized thoroughly using TGA, FTIR, XRD, and FESEM. The gas separation was measured with 50:50 vol.% CO2:CH4 binary mixture at 2 bar feed pressure and 25 °C. The pristine 6FDA-copolyimide showed CO2 permeability (PCO2) of 147 Barrer and CO2/CH4 selectivity (αCO2/CH4) of 47.5. At the optimum GO loading (1 wt.%), the PCO2 and αCO2/CH4 were improved by 22% and 7%, respectively. A combination of GO (1 wt.%)/ZIF-8 fillers tremendously improves its PCO2; by 990% for GO/ZIF-8 (5 wt.%) and 1.124% for GO/ZIF-8 (10 wt.%). Regrettably, the MMMs lost their selectivity by 16–55% due to the non-selective filler-polymer interfacial voids. However, the hybrid MMM performances still resided close to the 2019 upper bound and showed good performance stability when tested at different feed pressure conditions.

Effect of new metal–organic framework (zeolitic imidazolate framework [ZIF-12]) in mixed matrix membranes on structure, morphology, and gas separation properties

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Mehtap Safak Boroglu ◽  
Ismail Boz ◽  
Busra Kaya
Keyword(s):  
Gas Separation ◽  
Gas Permeability ◽  
Metal Organic Framework ◽  
Thermomechanical Analysis ◽  
Variable Pressure ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Sem Images ◽  
Zeolitic Imidazolate Framework ◽  
Matrix Membranes

Abstract In our study, the synthesis of zeolitic imidazolate framework (ZIF-12) crystals and the preparation of mixed matrix membranes (MMMs) with various ZIF-12 loadings were targeted. The characterization of ZIF-12 and MMMs were carried out by Fourier transform infrared spectroscopy analysis, thermogravimetric analysis, scanning electron microscopy (SEM), and thermomechanical analysis. The performance of MMMs was measured by the ability of binary gas separation. Commercial polyetherimide (PEI-Ultem® 1000) polymer was used as the polymer matrix. The solution casting method was utilized to obtain dense MMMs. In the SEM images of ZIF-12 particles, the particles with a rhombic dodecahedron structure were identified. From SEM images, it was observed that the distribution of ZIF-12 particles in the MMMs was homogeneous and no agglomeration was present. Gas permeability experiments of MMMs were measured for H2, CO2, and CH4 gases at steady state, at 4 bar and 35 °C by constant volume-variable pressure method. PEI/ZIF-12-30 wt% MMM exhibited high permeability and ideal selectivity values for H2/CH4 and CO2/CH4 were P H 2 / CH 4 = 331.41 ${P}_{{\text{H}}_{2}/{\text{CH}}_{4}}=331.41$ and P CO 2 / CH 4 = 53.75 ${P}_{{\text{CO}}_{2}/{\text{CH}}_{4}}=53.75$ gas pair.

Investigation of cellulose acetate/gamma‐cyclodextrin MOF based mixed matrix membranes for CO 2 /CH 4 gas separation

2021 ◽  
Vol 11 (2) ◽  
pp. 313-330
Author(s):  
Ovaid Mehmood ◽  
Sarah Farrukh ◽  
Arshad Hussain ◽  
Mohammad Younas ◽  
Zarrar Salahuddin ◽  
...  
Keyword(s):  
Cellulose Acetate ◽  
Gas Separation ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Gamma Cyclodextrin ◽  
Matrix Membranes
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