Hydrophilic silica additives for disulfonated poly(arylene ether sulfone) random copolymer membranes

► Chlorine-resistant disulfonated copolymer (BPS-20)-silica nanocomposites are fabricated for membrane desalination. ► Homogenously distributed silica particles improve salt rejection without significant loss of water permeability. ► At a high concentration, the silica provides a barrier which reduc...

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Veröffentlicht in:	Journal of membrane science 2012-03, Vol.392, p.157-166
Hauptverfasser:	Lee, Chang Hyun, Xie, Wei, VanHouten, Desmond, McGrath, James E., Freeman, Benny D., Spano, Justin, Wi, Sungsool, Park, Chi Hoon, Lee, Young Moo
Format:	Artikel
Sprache:	eng
Schlagworte:	additives artificial membranes Chemistry chlorine Colloidal state and disperse state composite polymers desalination equations Exact sciences and technology General and physical chemistry glass transition temperature hydrogen bonding hydrophilicity inorganic acids Ionic conductivity mechanical properties Membrane desalination Membranes nanocomposites nanoparticles Organic–inorganic nanocomposite permeability Physical and chemical studies. Granulometry. Electrokinetic phenomena potassium Silica sodium chloride Water purification Water/salt selectivity
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Zusammenfassung:	► Chlorine-resistant disulfonated copolymer (BPS-20)-silica nanocomposites are fabricated for membrane desalination. ► Homogenously distributed silica particles improve salt rejection without significant loss of water permeability. ► At a high concentration, the silica provides a barrier which reduces water permeability. Hydrophilic silica (SiO 2) nanoparticles (average size = 7 nm), which act as inorganic acids at low pH (
ISSN:	0376-7388 1873-3123
DOI:	10.1016/j.memsci.2011.12.015