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Title

Enhanced ultrafiltration PES membranes doped with mesostructured functionalized silica particles

AuthorsMartín, Antonio ; Arsuaga, Jesús M.; Roldán, Nuria; Abajo González, Javier de ; Martínez, Ana ; Sotto, Arcadio
KeywordsUltrafiltration
Hydrophilicity
Polyethersulfone
Membrane fouling
SBA-15
Issue Date2015
PublisherElsevier
CitationDesalination 357: 16-25 (2015)
AbstractNovel hybrid ultrafiltration membranes have been prepared by incorporation of mesostructured functionalized silica particles in polyethersulfone. Physico-chemical characterization of synthesized materials was accomplished to determine the textural and structural properties of particles by nitrogen adsorption-desorption and TEM. A successful functionalization of silica with amine and carboxylic groups was confirmed by means of MAS-NMR. Membrane surface morphology was studied in terms of pore size distribution, porosity and hydrophilicity, suggesting a great influence of mesostructured silica incorporation in polyethersulfone on the polymer matrix configuration. Membrane functions were significantly improved as a result of a considerable increase of water permeation without affecting negatively the membrane selectivity. The antifouling membrane properties were also enhanced, especially against irreversible fouling. Multi-run fouling tests of modified membranes confirmed the stability of permeation through membranes doped with mesostructured functionalized silica particles.
URIhttp://hdl.handle.net/10261/111579
DOI10.1016/j.desal.2014.10.046
Identifiersdoi: 10.1016/j.desal.2014.10.046
issn: 0011-9164
Appears in Collections:(ICTP) Artículos
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