Surface modification of polyethersulfone ultrafiltration membranes by corona plasma-assisted coating TiO2 nanoparticles

Moghimifar, Vahid; Raisi, Ahmadreza; Aroujalian, Abdolreza

doi:10.1016/j.memsci.2014.02.012

Cited by 123 publications

(51 citation statements)

References 44 publications

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“…Polysulfone(PSF) and/or Polyethersulfone (PES) are one of the most interesting polymers which are in the center of attention and extendedly used in separation fields [55][56][57][58].…”

Section: Improvement Of Antifouling and Other Membrane Propertiesmentioning

confidence: 99%

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

Bet-Moushoul

Mansourpanah

Farhadi

et al. 2016

Chemical Engineering Journal

344

130

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“…Polysulfone(PSF) and/or Polyethersulfone (PES) are one of the most interesting polymers which are in the center of attention and extendedly used in separation fields [55][56][57][58].…”

Section: Improvement Of Antifouling and Other Membrane Propertiesmentioning

confidence: 99%

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

Bet-Moushoul

Mansourpanah

Farhadi

et al. 2016

Chemical Engineering Journal

344

130

View full text Add to dashboard Cite

“…Due to their hydrophilic characteristics and high specific surface area, the incorporation of nano-TiO 2 increases the hydrophilicity of membranes, thus reducing fouling and increasing the permeate flux (Emadzadeh et al, 2014;Moghimifar et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Application of nano TiO2 modified hollow fiber membranes in algal membrane bioreactors for high-density algae cultivation and wastewater polishing

Yin

Deng

et al. 2015

Bioresource Technology

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Polyvinylidene fluoride (PVDF) hollow fiber membranes with nano-TiO2 (5% of PVDF by mass, average size = 25 nm) additives were fabricated and applied for high-density algae (Chlorella vulgaris) cultivation. At the average light intensity of 121 μmol/m(2)/s, the algal membrane bioreactors (A-MBR) operated at a hydraulic retention time of 0.5d and an average solids retention time of 25d had an average algae biomass concentration of 2350 ± 74 mg/L (in COD units) and algal biomass production rate of 6.5 ± 0.1g/m(2)/d. The A-MBRs removed an average of 78% of phosphorus from the wastewater at the initial total phosphorus concentrations ranging from 3.5 to 8.6 mg/L. The nano TiO2-embedded membranes had improved surface hydrophilicity with its total resistance about 50% lower than that of the control. This study demonstrated that PVDF/TiO2 nanocomposite membranes had a better antifouling property for high-density algae cultivation and wastewater polishing.

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“…17) Even though other methods (such as pretreatment of the feed and optimization of the operating conditions) are available for membrane maintenance, they do not provide satisfactory results because of the increased operation cost and decreased membrane lifetime. 18) Thus, surface modification is becoming a critical technique for the development of novel ceramic membranes with excellent fouling resistance.…”

Section: Introductionmentioning

confidence: 99%

Enhanced fouling resistance of organosilane-grafted ceramic microfiltration membranes for water treatment

Lee

Song

et al. 2017

J. Ceram. Soc. Japan

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A facile surface modification technique for imposing antifouling properties on ceramic microfiltration (MF) membranes was developed based on the chemical conjugation of organosilane molecules on ceramics. The ceramic MF membranes (pore size: approximately 0.1¯m) were fabricated using conventional dip coating in an alumina slurry with nano-sized particles. The membranes were subsequently subjected to organosilane grafting with different molar concentrations (25, 50, and 100 mM). The physicochemical analysis of the organosilane-grafted membranes revealed a small decrease in pore size/roughness, which resulted from the new formation of organosilane multilayers (i.e., pore-filling effect). The pure water permeability was also diminished to some extent while exhibiting minimal influence on the permeation flux. Because of the electrostatic repulsion force between the surface-modified MF membranes and the model foulants, serious foulant adsorption followed by flux decline was significantly alleviated. In particular, the lowest organosilane concentration (25 mM) showed the greatest flux performance. This was mostly attributed to the reduced effect of pore-size restriction and electrostatic repulsion forces. We therefore achieved the optimum organosilane-grafting conditions for ceramic MF membranes, which not only minimized the alteration of surface morphology/pore size and hydraulic permeability but also remarkably improved the antifouling properties.

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Surface modification of polyethersulfone ultrafiltration membranes by corona plasma-assisted coating TiO2 nanoparticles

Cited by 123 publications

References 44 publications

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

TiO2 nanocomposite based polymeric membranes: A review on performance improvement for various applications in chemical engineering processes

Application of nano TiO2 modified hollow fiber membranes in algal membrane bioreactors for high-density algae cultivation and wastewater polishing

Enhanced fouling resistance of organosilane-grafted ceramic microfiltration membranes for water treatment

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