The enhanced hydrogen separation performance of mixed matrix membranes by incorporation of two-dimensional ZIF-L into polyimide containing hydroxyl group

2018 ◽  
Vol 549 ◽  
pp. 260-266 ◽  
Author(s):  
Seungju Kim ◽  
Ezzatollah Shamsaei ◽  
Xiaocheng Lin ◽  
Yaoxin Hu ◽  
George P. Simon ◽  
...  
Keyword(s):  
Hydrogen Separation ◽  
Hydroxyl Group ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Two Dimensional ◽  
Mixed Matrix ◽  
Matrix Membranes

scholarly journals Mechanism and Compatibility of Pretreated Lignocellulosic Biomass and Polymeric Mixed Matrix Membranes: A Review

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 370
Author(s):  
Abiodun Abdulhameed Amusa ◽  
Abdul Latif Ahmad ◽  
Jimoh Kayode Adewole
Keyword(s):  
Lignocellulosic Biomass ◽  
High Performance ◽  
Polymeric Membranes ◽  
Hydroxyl Group ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Polymer Modification ◽  
Mixed Matrix ◽  
Physical And Chemical ◽  
Matrix Membranes

In this paper, a review of the compatibility of polymeric membranes with lignocellulosic biomass is presented. The structure and composition of lignocellulosic biomass which could enhance membrane fabrications are considered. However, strong cell walls and interchain hindrances have limited the commercial-scale applications of raw lignocellulosic biomasses. These shortcomings can be surpassed to improve lignocellulosic biomass applications by using the proposed pretreatment methods, including physical and chemical methods, before incorporation into a single-polymer or copolymer matrix. It is imperative to understand the characteristics of lignocellulosic biomass and polymeric membranes, as well as to investigate membrane materials and how the separation performance of polymeric membranes containing lignocellulosic biomass can be influenced. Hence, lignocellulosic biomass and polymer modification and interfacial morphology improvement become necessary in producing mixed matrix membranes (MMMs). In general, the present study has shown that future membrane generations could attain high performance, e.g., CO2 separation using MMMs containing pretreated lignocellulosic biomasses with reachable hydroxyl group radicals.

scholarly journals Physical aging in glassy mixed matrix membranes; tuning particle interaction for mechanically robust nanocomposite films

2016 ◽  
Vol 4 (27) ◽  
pp. 10627-10634 ◽  
Author(s):  
Stefan J. D. Smith ◽  
Cher Hon Lau ◽  
James I. Mardel ◽  
Melanie Kitchin ◽  
Kristina Konstas ◽  
...  
Keyword(s):  
Physical Aging ◽  
Particle Interaction ◽  
Nanocomposite Films ◽  
Mixed Matrix Membranes ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Membrane Technologies ◽  
Matrix Membranes

Addressing the mechanical weakness and physical aging of glassy mixed matrix membranes to realise their potential for enhancing the separation performance of current membrane technologies.

scholarly journals THE EFFECT OF TYPE ZEOLITE ON THE GAS TRANSPORT PROPERTIES OF POLYIMIDE-BASED MIXED MATRIX MEMBRANES

REAKTOR ◽  
2008 ◽  
Vol 12 (2) ◽  
pp. 68 ◽  
Author(s):  
Tutuk Djoko Kusworo ◽  
Ahmad Fauzi Ismail ◽  
Azeman Mustafa ◽  
Kang Li
Keyword(s):  
Mixed Matrix Membranes ◽  
Mixed Matrix Membrane ◽  
Separation Performance ◽  
Mixed Matrix ◽  
Scanning Calorimetry ◽  
Zeolite 4A ◽  
Intensity Changes ◽  
Zeolite Type ◽  
Type Zeolite ◽  
Matrix Membranes

The permeation rates of O2, N2, CO2 and CH4 has been studied for polyimide-polyethersulfone (PI/PES) blends-zeolite mixed matrix membranes synthesized in our laboratory. The study investigated the effect of zeolite loading and different zeolite type on the gas separation performance of these mixed matrix membranes. Frequency shifts and absorption intensity changes in the FTIR spectra of the PI/PES blends as compared with those of the pure polymers indicate that there is a mixing of polymer blends at the molecular level. Differential scanning calorimetry measurements of pure and PI/PES blends membranes have showed one unique glass transition temperature that supports the miscible character of the PI/PES mixture. The PI/PES-zeolite 4A mixed matrix membrane with 25 wt % zeolite loading produced the highest O2/N2 and CO2/CH4 selectivity of around 7.45 and 46.05, respectively.

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