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novel process for porous membrane preparation suitable for hydrophilic polymers

A novel process for porous membrane preparation suitable for hydrophilic polymers has been developed in IEM. The porosity formation results on Pickering emulsion templating involving hexagonal boron nitride (h-BN) or graphene oxide (GO) as stabilizer. The integration of a cross-linking step in the fabrication process allows membrane fabrication suitable for filtration operations with aqueous media. The 2-D materials (h-BN or GO), involved as nano-charges, are essential to maintain the porosity but they can also bring new functionalities to the membrane. The development of sustainable filtration membranes made with hydrosoluble polymers is of great interest in the context of developing green technologies. Results have been published in Langmuir 1,2, Nanomaterials3 and Green Chemistry4. These works have been supported by CheMISyst LabEx.

 

1 - Inverse Pickering Emulsion Stabilized by Exfoliated Hexagonal-Boron Nitride (h-BN). D. Gonzalez Ortiz, C. Pochat-Bohatier, J. Cambedouzou, S. Balme, M. Bechelany, P. Miele. Langmuir 33 (2017) 13394–13400.
 
2- Porous Gelatin Membrane Obtained from Pickering Emulsions Stabilized by Graphene Oxide S. Nagarajan, D. Abessolo Ondo, S. Gassara, M. Bechelany, S. Balme, P. Miele, N. Kalkura, C. Pochat-Bohatier, Langmuir 34 (2018) 1542-1549.
 
3-Exfoliation of Hexagonal Boron Nitride (h-BN) in Liquide Phase by Ion Intercalation. D. Gonzalez-Ortiz, C. Pochat-Bohatier, J. Cambedouzou, M. Bechelany, P. Miele. Nanomaterials 8 (2018) 716.
 
4-Development of novel h-BNNS/PVA porous membranes via Pickering emulsion templating. D. Gonzalez Ortiz, C. Pochat-Bohatier, S. Gassara, J. Cambedouzou, M. Bechelany, P. Miele. Green Chemistry (2018, DOI: 10.1039/C8GC01983E).

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