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Article Dans Une Revue Green Chemistry Année : 2018

Development of novel h-BNNS/PVA porous membranes via Pickering emulsion templating

Résumé

Polymer-based membranes play an important role in water filtration, in particular in the removal of particles, microorganisms and organic pollutants. Developing a reliable fabrication method for membranes presenting both high flux and good selectivity remains challenging. Polyvinyl alcohol (PVA) is a well-known polymer with promising perspectives due to its specific properties such as nontoxicity, biocompatibility and biodegradability which is of great interest within the context of developing green technologies. Herein, a new strategy using mainly water as a solvent to produce porous membranes based on PVA has been developed using emulsion templating involving hexagonal boron nitride nanosheets (h-BNNS) as a stabilizer. The membranes displaying a pore size around 1 m show a water permeability over 2000 L m(-2) h(-1) bar(-1) and a rejection efficiency of approximate to 100%. Moreover, the membranes did not show a significant reduction of their performances after particle filtration. The results indicated that the h-BNNS/PVA porous membranes fabricated via Pickering emulsion templating are good candidates to be used as microfiltration membranes.
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Dates et versions

hal-01895408 , version 1 (04-06-2021)

Identifiants

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Danae Gonzalez-Ortiz, Céline Pochat-Bohatier, Sana Gassara, Julien Cambedouzou, Mikhael Bechelany, et al.. Development of novel h-BNNS/PVA porous membranes via Pickering emulsion templating. Green Chemistry, 2018, 20 (18), pp.4319 - 4329. ⟨10.1039/c8gc01983e⟩. ⟨hal-01895408⟩
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