Polyethersulfone ultrafiltration membranes modified with hybrid Ag/titanate nanotubes: physicochemical characteristics, antimicrobial properties and fouling resistance

Supported cellulose ultrafiltration membranes are cast from a cellulose-ionic liquid solution by the immersion precipitation technique. The effects of coagulation bath temperature and polymer concentration in the casting solution on the membrane morphology, wettability, pure water flux, molecular weight cut-off, and fouling resistance are studied. Scanning electron microscopy, contact angle measurements, atomic force microscopy, and filtration experiments are carried out in order to characterise the obtained ultrafiltration cellulose membranes. The results show the effect of coagulation bath temperature and polymer concentration on the surface morphology and properties of cellulose ultrafiltration membranes. Optimisation of the two parameters leads to the creation of dense membranes with good pure water fluxes and proven fouling resistance towards humic acid water solutions.

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Improving the hydrophilicity and fouling-resistance of polysulfone ultrafiltration membranes via surface zwitterionicalization mediated by polysulfone-based triblock copolymer additive

Journal of Membrane Science ◽

10.1016/j.memsci.2013.03.064 ◽

2013 ◽

Vol 440 ◽

pp. 40-47 ◽

Cited By ~ 129

Author(s):

Yi-Fan Zhao ◽

Li-Ping Zhu ◽

Zhuan Yi ◽

Bao-Ku Zhu ◽

You-Yi Xu

Keyword(s):

Triblock Copolymer ◽

Fouling Resistance ◽

Ultrafiltration Membranes

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Tailoring the surface properties of PES ultrafiltration membranes to reduce the fouling resistance using synthesized hydrophilic copolymer

Microporous and Mesoporous Materials ◽

10.1016/j.micromeso.2012.04.036 ◽

2012 ◽

Vol 160 ◽

pp. 114-125 ◽

Cited By ~ 86

Author(s):

Majid Peyravi ◽

Ahmad Rahimpour ◽

Mohsen Jahanshahi ◽

Ali Javadi ◽

Abbas Shockravi

Keyword(s):

Surface Properties ◽

Fouling Resistance ◽

Ultrafiltration Membranes

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Improvements in permeation and fouling resistance of PVC ultrafiltration membranes via addition of Tetronic-1107 and Triton X-100 as two non-ionic and hydrophilic surfactants

Water Science & Technology ◽

10.2166/wst.2016.334 ◽

2016 ◽

Vol 74 (6) ◽

pp. 1469-1483 ◽

Cited By ~ 9

Author(s):

Hesamoddin Rabiee ◽

S. Mojtaba Seyedi ◽

Hossein Rabiei ◽

Negar Alvandifar

Keyword(s):

Electron Microscopy ◽

Water Flux ◽

Fouling Resistance ◽

Ultrafiltration Membranes ◽

Poly Vinyl Chloride ◽

Triton X ◽

Thermodynamic Instability ◽

Microscopy Images ◽

Bsa Rejection ◽

Scanning Electron

Two non-ionic and hydrophilic surfactant additives, Tetronic-1107 and Triton X-100, were added to poly(vinyl chloride)/NMP polymeric solution to prepare ultrafiltration membranes via immersion precipitation. Surfactants at three different weight percentages up to 6 wt% were added, and the fabricated membranes were characterized and their performance for water treatment in the presence of bovine serum albumin (BSA) as a foulant was assessed. The scanning electron microscopy images indicated remarkable changes in morphology due to higher thermodynamic instability after surfactant addition. The membranes are more porous with more macro-voids in the sub-layer. Plus, the membranes become more hydrophilic. Water flux increases for the modified membranes by nearly two times and the ability of membranes for flux recovery increases from 66% to over 83%. BSA rejection reduces slightly with the addition of surfactants, however this parameter is still almost over 90% for the membranes with the highest amount of surfactants.

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