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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dumée, Ludo
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Publications (9/9 displayed)
- 2019Wrinkled silica doped electrospun nano-fiber membranes with engineered roughness for advanced aerosol air filtrationcitations
- 2019Catalytic electrospun nano-composite membranes for virus capture and remediationcitations
- 2019One-pot synthesis of catalytic molybdenum based nanocomposite nano-fiber membranes for aerosol air remediationcitations
- 2019Mixed matrix Poly(vinyl alcohol)-Copper nanofibrous anti-microbial air-microfilterscitations
- 2018The growth of high density network of MOF nano-crystals across macroporous metal substrates - solvothermal synthesis versus rapid thermal depositioncitations
- 2017Inorganic nanoparticles/MOFs hybrid membrane reactors for CO2 separation and conversion
- 2016Exploring plasma technique for tuning surface energy of thin film composite membranes
- 2016Enhanced visible light absorption of titania nanotubes vie non-metal atom RF plasma doping
- 2016Assessing temporal and physical stability of functional groups introduced by surface plasma treatments across the outer shells of carbon nanotubes
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document
Inorganic nanoparticles/MOFs hybrid membrane reactors for CO2 separation and conversion
Abstract
ncreased emission of Carbon dioxide (CO2) from the combustion of fossil fuel, is the primary cause of global warming, leading to adverse climatic changes and ocean acidification.1 One promising solution is the utilization of the CO2, where the greenhouse gas is converted to valuable products, such as methanol, methane and formic acid, in the presence of a suitable catalyst. Furthermore, by using membrane reactor based catalytic systems, CO2 maybe simultaneously separated from flue gas stream and directly converted to useful product, thus providing a potential economical solution, by eliminating the cost associated with CO2 transport and storage.Herein, hybrid membrane reactors composed of polymer, zeolitic imidazolate framework (ZIF-8) and catalytic inorganic nanoparticles are developed, and their potential in facilitating simultaneous separation and conversion of CO2 investigated. The fabrication approach involves surface modification of macroporous stainless steel substrate with graphene oxide, to enhance the interface with MOF crystals, after which ZIF-8 membranes are deposited following rapid thermal deposition. One side of the membrane is subsequently doped TiO2 and Cu-TiO2 nanoparticles to impart catalytic activity, while the other side of the membrane is modified with thin layer of PEBAX polymer to enhance CO2/N2 selectivity. The morphology of the membrane was observed using scanning electron microscope (SEM), while quantification and depth profile distribution of the inorganic nanoparticles will be characterized using Rutherford backscattering (RBS) and particles induced x-ray emission (PIXE).Preliminary permeation studies show the inorganic nanoparticles doped MOF membrane exhibit Knudsen selectivities for He/N2, CO2/N2 and Ar/N2, suggesting an almost defect-free membrane structure. Preliminary photocatalytic studies show the membrane are catalytically active towards CO2 conversion, producing methanol and CO as the main products. Schematic illustration for the membrane fabrication is illustrated in scheme 1, while SEM images for the membranes are shown in figure 1.