Effect of surface pattern formation on membrane fouling and its control in phase inversion process

Gohari, Rasoul Jamshidi; Lau, Woei Jye; Matsuura, Takeshi; Ismail, Ahmad Fauzi

doi:10.1016/j.memsci.2013.06.056

Cited by 83 publications

(38 citation statements)

References 28 publications

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“…The highest flux recovery obtained in CP10-5 membrane is also probably due to its smaller pore size, by which the large BSA molecules could not enter the small pore size, minimizing pore blockage phenomenon due to adsorption of BSA in the inner pores. As previously reported, factors such as membrane hydrophilicity, surface roughness and surface chemical composition are also the key parameters governing the severity of fouling [21,30,31]. Note the excellent fouling resistance of CP10-5 membrane is consistent with the high surface coverage of PVA shown by the membrane, which prevents protein adsorption and enhances fouling resistant.…”

Section: June 2015supporting

confidence: 59%

Improving water permeability and anti-fouling property of polyacrylonitrile-based hollow fiber ultrafiltration membranes by surface modification with polyacrylonitrile-g-poly(vinyl alcohol) graft copolymer

Nazri

Lau

Ismail

2015

Korean J. Chem. Eng.

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The effect of polyacrylonitrile-g-poly (vinyl alcohol) (PAN-g-PVA) copolymer additive on the properties of PAN-based hollow fiber UF membranes was studied. The resulting hollow fiber membranes were characterized with respect to structural morphology, surface properties, and proteins rejection in order to investigate the impact of PAN-g-PVA copolymer composition (presented at different PAN : PAN-g-PVA ratio) in the UF membrane on the separation and antifouling properties. Results showed that the hollow fiber membrane prepared from the highest composition of PAN-g-PVA copolymer (PAN : PAN-g-PVA 80 : 20) was able to produce pure water flux as high as 297 L/m 2 ·hr in comparison to 41 L/m 2 ·hr reported in control PAN membrane when tested at 1 bar. Fouling experiments performed using bovine serum albumin (BSA), albumin from chicken egg (CE) and trypsin indicated that the blend membranes with higher surface coverage of hydrophilic PVA (34-60%) were more excellent in minimizing protein fouling, which might be correlated with the formation of hydrophilic PVA layer on their surface. Although increase in membrane hydrophilicity upon PAN-g-PVA copolymer incorporation might be the main reason contributing to improved membrane antifouling properties, the changes in membrane surface roughness and pore size could not be completely ruled out to influence membrane anti-fouling resistance during protein filtration.

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Section: June 2015supporting

confidence: 59%

Improving water permeability and anti-fouling property of polyacrylonitrile-based hollow fiber ultrafiltration membranes by surface modification with polyacrylonitrile-g-poly(vinyl alcohol) graft copolymer

Nazri

Lau

Ismail

2015

Korean J. Chem. Eng.

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“…It was also reported that there is a threshold concentration at which hydrophily shows a maximum [90,98,105]. The reason is that the surface roughness becomes dominant at higher additive concentration, which decreases the surface wettability [90].…”

Section: Downloaded By [Deakin University Library] At 01:21 12 Augustmentioning

confidence: 96%

“…It was reported that water flux increased continuously by the incorporation of nanomaterials without any reduction within a range of concentrations, [39,85,90,96] which in one case, went up to 4.8 wt.% [96]. This behavior is attributed to the hydrophily enhancement and either increase in the surface roughness or membrane porosity.…”

Section: -Nanomaterials Incorporated Polymeric Membranes In Ultra Anmentioning

confidence: 97%

“…For example, permeability is reduced by the addition of the nanomaterials at the low concentration, since the pore plugging dominates. As the particle concentration increases, surface hydrophily and mean pore size become dominant, and flux shows a maximum, while by further increasing the concentration, pore plugging plays the main role again, and permeability decreases [97].It was reported that water flux increased continuously by the incorporation of nanomaterials without any reduction within a range of concentrations, [39,85,90,96] which in one case, went up to 4.8 wt.% [96]. This behavior is attributed to the hydrophily enhancement and either increase in the surface roughness or membrane porosity.…”

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confidence: 99%

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Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Baghbanzadeh

Rana

Lan

et al. 2015

Separation & Purification Reviews

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Separation using selective polymeric membranes has been well-established as an energy-efficient and cost-effective technology in water treatment and many other applications involving aqueous solutions. However, limited chemical, thermal, and mechanical resistances besides their tendency to fouling and inadequate pure water flux may often restrict their applications. To this end, inorganic materials as additives have been demonstrated to be able to enhance chemical, thermal, and fouling membrane resistances, which demonstrate their great potential for developing novel membranes by using them as additives in polymer matrices. Considering the excellent characteristics of the nano-sized particles, this study reviews the effects of inorganic nanoadditives on properties and performance of polymer/nanoparticle composite membranes. It has been demonstrated that using nanomaterials in a polymer matrix could enhance the mechanical strength and stiffness, wettability, selectivity, water permeability, and antifouling characteristics of the host polymer. Abbreviation ALDAtomic Layer Deposition PAN Polyacrylonitrile AOP Advanced Oxidation Process PAS Polyarylsulfone APTS 3-Aminopropyltriethoxysilane PCTE Polycarbonate BET Brunauer Emmett Teller PDMS Polydimethylsiloxane BP Bucky-Paper PEI Polyethyleneimine BPPO Brominated Poly(phenylene oxide) PES Polyethersulfone BSA Bovine serum albumin PI Polyimide CA Cellulose acetate PMMA Poly(methyl methacrylate) Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t CNIM Carbon Nanotube Immobilized Membrane PP Polypropylene CNT Carbon Nanotube PSf Polysulfone CTA Cellulose triacetate PTFE Polytetrafluoroethylene DCMD Direct Contact Membrane Distillation PV Pervaporation DLS Dynamic Light Scattering PVA Poly(vinyl alcohol) FO Forward Osmosis PVC Polyvinyl chloride GO Graphene Oxide PVDF Polyvinylidene fluoride ICP Internal Concentration Polarization RO Reverse Osmosis LEP Liquid Entry Pressure SDS Sodium dodecyl sulfate MD Membrane Distillation SEM Scanning Electron Microscopy Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t MF Microfiltration SGMD Sweep Gas Membrane Distillation MWCNT Multi-Walled Carbon Nanotube SPES SulfonatedPolyethersulfone NF Nanofiltration TMOS Tetramethylorthosilicate NP Nanoparticle TMP Transmembrane Pressure PA Polyamide UF Ultrafiltration PAI Poly(amide-imide) VMD Vacuum Membrane Distillation 1-IntroductionThe increase in water demand for domestic, agricultural and industrial uses resulted in much attention toward water and waste water treatment technologies during the last few decades. The water demand is predicted to increase by 50% over the next few decades [1]. Membrane filtration, advanced oxidation processes (AOPs), and UV irradiation are among the processes that Downloaded by [Deakin University Library] at 01:21 12 August 2015A c c e p t e d M a n u s c r i p t have been used for this purpose [2] and membrane filtration is considered to be one of the most...

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“…Normalized flux was used to evaluate the antifouling performances of composite NF membrane [46][47][48][49]. The normalized flux was calculated by the following equation:…”

Section: Fouling Resistance Testingmentioning

confidence: 99%

Nanofiltration membrane achieving dual resistance to fouling and chlorine for “green” separation of antibiotics

Cheng

Liu

Guo

et al. 2015

Journal of Membrane Science

138

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Effect of surface pattern formation on membrane fouling and its control in phase inversion process

Cited by 83 publications

References 28 publications

Improving water permeability and anti-fouling property of polyacrylonitrile-based hollow fiber ultrafiltration membranes by surface modification with polyacrylonitrile-g-poly(vinyl alcohol) graft copolymer

Improving water permeability and anti-fouling property of polyacrylonitrile-based hollow fiber ultrafiltration membranes by surface modification with polyacrylonitrile-g-poly(vinyl alcohol) graft copolymer

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Nanofiltration membrane achieving dual resistance to fouling and chlorine for “green” separation of antibiotics

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