Preparation of polysulfone–Fe3O4 composite ultrafiltration membrane and its behavior in magnetic field

Pan, Jian; Yahui, H.; Yang, Wen; Linlin, L.

doi:10.1016/j.memsci.2006.07.052

Cited by 121 publications

(33 citation statements)

References 14 publications

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“…Modifiers are often added to tailor the membrane properties, and small amounts of modifiers can significantly change the membrane performance [1]. To date, a range of materials with different properties and morphologies have been studied for their effects on phase inversion process, they include polymer additives and inorganic particles as summarized in Table 1 [2,6,[8][9][10][11][12][13][14][15][16][17][18][19][20]. For instance, nanoparticles, zero-dimensional materials, were favoured over micron-sized particles to improve polymer-filler compatibility [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

Low

Razmjou

Wang

et al. 2014

Journal of Membrane Science

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A new two-dimensional zeolitic imidazolate framework with leaf-shaped morphology (ZIF-L) was incorporated into polyethersulfone (PES) ultrafiltration membranes to investigate how the ZIF nanoflakes affect functional membrane properties. The membranes were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), atomic force microscopy (AFM), and contact angle goniometry. The water permeability and molecular weight cut-offs (MWCO) of membranes were also determined under constant pressure filtration. Membrane fouling resistance was characterized under constant flux operation using bovine serum albumin (BSA) as foulant. The modified UF membrane with 0.5% ZIF-L loading showed around 75% increase in water flux without greatly affecting the MWCO. Also, the same membrane showed almost twice the fouling resistance improvement against BSA with more than 80% water flux recovery. The improvement was due to the combined effect of the lower zeta potential of the modified membrane, increased hydrophilicity and reduced surface roughness, which made the attachment of BSA protein on the membrane surface more difficult. These results 2 demonstrate that the addition of 2-dimensional ZIF-L nanoflakes is effective for improving polymer membrane fouling resistance and water flux.

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Section: Introductionmentioning

confidence: 99%

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

Low

Razmjou

Wang

et al. 2014

Journal of Membrane Science

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“…To improve the properties of polymeric membranes including antifouling, permeation, thermal stabilities, and mechanical properties, inorganic nanoparticles have been introduced as filler to prepare composite membrane in recently years, and their application fields have covered microfiltration [9,10], ultrafiltration [11][12][13][14][15][16][17], gas separation [18,19], as well as pervaporation [20]. Among the mostly used inorganic nanoparticles, nano-sized titanium dioxide (TiO 2 ) is special interested for its good performance like high hydrophilicity, good chemical stability, antibacterial property, avirulent et al [21], and anatase TiO 2 could also be used as a photocatalyst in waste water treatment [22].…”

Section: Introductionmentioning

confidence: 99%

“…Among the mostly used inorganic nanoparticles, nano-sized titanium dioxide (TiO 2 ) is special interested for its good performance like high hydrophilicity, good chemical stability, antibacterial property, avirulent et al [21], and anatase TiO 2 could also be used as a photocatalyst in waste water treatment [22]. Three methods have been reported to prepare polymer-inorganic composite membranes: (1) Disperse the nanoparticles in the casting solution directly and prepare the composite membranes via phase inversion [11][12][13][14][15][16]; (2) Add the prepared sol containing nanoparticles in the casting solution and prepare the composite membranes via phase inversion [17,23,24]; (3) Dip the prepared membrane in the aqueous suspension containing nanoparticles and prepare the composite membranes via self-assembling [25,26].…”

Section: Introductionmentioning

confidence: 99%

Effect of TiO2 nanoparticles on the surface morphology and performance of microporous PES membrane

Yang

et al. 2009

Applied Surface Science

591

239

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“…Among many nanoparticles, TiO2 nanopowder is investigated because it is non-toxic, chemically inert and low cost (Li et al, 2009). Three methods have been reported to prepare polymer-inorganic composite membranes: (1) Disperse the nanoparticles in the casting solution directly and prepare the composite membranes via phase inversion (Jian et al, 2006); (2) Add the prepared sol containing nanoparticles in the casting solution and prepare the composite membranes via phase inversion; (3) Dip the prepared membrane in the aqueous suspension containing nanoparticles and prepare the composite membranes via selfassembling (Bae et al, 2006).…”

Section: H El-sayed Et Almentioning

confidence: 99%

BRACKISH GROUNDWATER DESALINATION USING THE SYNTHETIC PA-g-AAC/TIO2 MEMBRANE

Elsayed

Fadl

Abdel-Fattah

et al. 2011

Al-Azhar Bulletin of Science

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The possibility of producing drinking water from brackish groundwater using synthetic polyamide grafted acrylic acid/ titanium oxide (PA-g-AAc/TiO2) membrane was studied. The optimum conditions for preparation of the synthetic membrane were PA concentration (7 % w/v of solvent), LiCl concentration (40 % w/w of PA), AAc concentration (20 % w/w of PA), TiO2 concentration (3 % w/w of PA), evaporation time (24 hr.) and temperature (70 °C). Brackish groundwater sample was taken from El-Maghara area, Mid. Sinai, Egypt and analyzed by the standard methods. The obtained results showed that the total dissolved solids (TDS) and ionic composition of permeate water decrease as the operation time increases. The cations and anions rejection (R %) showed that the divalent cations and anions are more rejected than the monovalent ones, where the order of cations rejection was R Mg 2+ > R Ca 2+ > R Na + , while the anions rejection was in the order R SO4 2->R HCO3 -> R Cl -. After the desalination process, the hypothetical salts of such sample do not change; but the change was only in its concentration expressed as TDS. The sequence of salts rejection (Rs %) related to initial concentration of each salt arranged was Rs MgSO4> Rs MgCl2 > Rs CaSO4 > Rs Ca (HCO3)2 >Rs NaCl. This can be explained according to Donnan theory.The produced water permeate has a low value of TDS (933 ppm), where the salt rejection and water flux are 70 % and 10.28 x10 -5 g/cm 2 .sec., respectively. This produced water is accepted by international standards for drinking water.

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Preparation of polysulfone–Fe3O4 composite ultrafiltration membrane and its behavior in magnetic field

Cited by 121 publications

References 14 publications

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

Effect of addition of two-dimensional ZIF-L nanoflakes on the properties of polyethersulfone ultrafiltration membrane

Effect of TiO2 nanoparticles on the surface morphology and performance of microporous PES membrane

BRACKISH GROUNDWATER DESALINATION USING THE SYNTHETIC PA-g-AAC/TIO2 MEMBRANE

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