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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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Hill, Anita J.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2016Structural effects on SAPO-34 and ZIF-8 materials exposed to seawater solutions, and their potential as desalination membranescitations
- 2015Positioning of the HKUST-1 metal-organic framework (Cu3(BTC)2) through conversion from insoluble Cu-based precursorscitations
- 2015ZnO as an efficient nucleating agent for rapid, room temperature synthesis and patterning of Zn-based metal-organic frameworkscitations
- 2015Biomimetic mineralization of metal-organic frameworks as protective coatings for biomacromoleculescitations
- 2014Using functional nano- and microparticles for the preparation of metal-organic framework composites with novel propertiescitations
- 2013Applications of magnetic metal-organic framework compositescitations
- 2012Tailoring the Chain Packing in Ultrathin Polyelectrolyte Films Formed by Sequential Adsorptioncitations
- 2012Magnetic framework composites for polycyclic aromatic hydrocarbon sequestrationcitations
- 2011Amino functionalized SiO 2 nanoparticles for seeding MOF-5citations
- 2010Metal organic frameworks with exceptional gas storage capacity
- 2009Internal and external surface characterisation of templating processes for ordered mesoporous silicas and carbonscitations
Places of action
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article
Structural effects on SAPO-34 and ZIF-8 materials exposed to seawater solutions, and their potential as desalination membranes
Abstract
The effects of saline water on the material properties of two promising salt rejecting structures, SAPO-34 and ZIF-8, were explored for desalination. Immersing SAPO-34 in seawater revealed a release of Al which involved some replacement by Ca, K, Mg and Na. X-ray powder diffraction revealed a robust structure in deionised and seawater solutions. ZIF-8 on the other hand, lost 1% of its mass due to the release of Zn into both deionised water and sea- water solutions, yet the structure remained intact. N2 and positron annihilation lifetime spectroscopy porosimetry techniques revealed loss of surface area and mesopores on both materials, explained by capillary forces acting to close them. Membrane reverse osmosis revealed no liquid water flux for SAPO-34 due to the in- tactness of the membrane and very small pore size which contributed to prohibitive resistance to liquid water flow. ZIF-8 membranes permeated water, but did not demonstrate significant salt rejection indicating that either the slight mass loss impacted membrane integrity to reject salt, or that liquid water diffusion in ZIF-8 does not follow a salt rejecting path. SAPO-34 and ZIF-8 structures are stable structures for aqueous applications including sea salts, but further work is needed to develop them for reverse osmosis desalination.<br/>