Fabrication optimization of polyethersulfone (PES)/polyvinylpyrrolidone (PVP) nanofiltration membranes using Box–Behnken response surface method

Peydayesh, Mohammad; Bagheri, Maryam; Mohammadi, Toraj; Bakhtiari, Omid

doi:10.1039/c7ra03566g

Cited by 51 publications

(22 citation statements)

References 47 publications

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“…Fabrication of membranes with high PVP conc. exhibits porous structure with wider finger like macro voids and shows high permeation flux [86,[96][97][98][99][100][101][102][103].…”

Section: Role Of Additives In Membrane Fabricationmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

172

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During last few decades, membrane technology has emerged as an efficient technique over conventional methods due to its high removal capacity, ease in operation and cost effectiveness for wastewater treatment and production of clean water. Membrane based separations are commonly based on polymeric membranes because of their higher flexibility, easily pore forming mechanism, low cost and smaller space for installation as compared to inorganic membranes. Commonly employed membrane fabrication phase inversion method has been shortly reviewed in this article. Major limitation of membrane based separations is fouling and polymeric membranes being hydrophobic in nature are more prone to fouling. Fouling is a deposition of various colloidal particles, macromolecules (polysaccharides, proteins), salts etc. on membrane surface and within pores thus impedes membrane performance, reduces flux and results in high cost. Modification of polymeric membranes due to its tailoring ability with nanomaterials such as metal based and carbon based results in polymeric nano-composite membranes with high antifouling characteristics. Nanomaterials impart high selectivity, permeability, hydrophilicity, thermal stability, mechanical strength, and antibacterial properties to polymeric membranes via blending, coating etc. modification methods. Characterization techniques has also discussed in later section for studying morphological properties and performance of polymer nano-composite membranes. Graphical Abstract

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“…Fabrication of membranes with high PVP conc. exhibits porous structure with wider finger like macro voids and shows high permeation flux [86,[96][97][98][99][100][101][102][103].…”

Section: Role Of Additives In Membrane Fabricationmentioning

confidence: 99%

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Zahid¹,

Rashid²,

Akram³

et al. 2018

J Membr Sci Technol

172

View full text Add to dashboard Cite

show abstract

“…Adsorption. This method is repeatedly used in literature to evaluate the porosity of the membranes [28,50] via determining take up of water. The membranes were vacuum dried at 80 ∘ C, before being weighed and their size and thickness measured.…”

Section: Gravimetric Methods Of Watermentioning

confidence: 99%

“…As a measure of membrane's hydrophilicity, the water contact angle (WCA) was measured via the sessile drop method [50] using a Theta Lite optical tensiometer at a room temperature of 22 ∘ C. A range of 0.5-1.5 L droplet sizes of water were placed on the membrane surface and the images were recorded using the automated OneAttension software. The static contact angles were measured at a minimum of three random locations and the mean values reported to minimise experimental error.…”

Section: Membrane Characterisationmentioning

confidence: 99%

Fabrication of PES/PVP Water Filtration Membranes Using Cyrene®, a Safer Bio-Based Polar Aprotic Solvent

Milescu

McElroy

Farmer

et al. 2019

Advances in Polymer Technology

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A more sustainable dialysis and water filtration membrane has been developed, by using the new, safer, bio-based solvent Cyrene® in place of N-methyl pyrrolidinone (NMP). The effects of solvent choice, solvent evaporation time, the temperature of casting gel, and coagulation bath together with the additive concentration on porosity and pore size distribution were studied. The results, combined with infrared spectra, SEM images, porosity results, water contact angle (WCA), and water permeation, confirm that Cyrene® is better media to produce polyethersulfone (PES) membranes. New methods, Mercury Intrusion Porosimetry (MIP) and NMR-based pore structure model, were applied to estimate the porosity and pore size distribution of the new membranes produced for the first time with Cyrene® and PVP as additive. Hansen Solubility Parameters in Practice (HSPiP) was used to predict polymer-solvent interactions. The use of Cyrene® resulted in reduced polyvinylpyrrolidone (PVP) loading than required when using NMP and gave materials with larger pores and overall porosity. Two different conditions of casting gel were applied in this study: a hot (70°C) and cold gel (17°C) were cast to obtain membranes with different morphologies and water filtration behaviours.

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“…As mentioned in Peydayesh's work, introducing PVP into dope solution will increase solution viscosity and reduce diffusion coefficient. Thermodynamic enhancement caused higher demixing rate between solvent and non-solvent, reduced kinetic hindrance [21] and yielded the final morphologies in Fig. 1.…”

Section: Sem-edxmentioning

confidence: 95%

Synthesizing Ag/PDA/PES Antibacterial Membrane for Natural Organic Molecules Removal

et al. 2018

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Silver nanoparticles (NP) was successfully immobilized on polydopamine (PDA) supported polyethersulfone (PES) membrane via a redox reaction. Polyvinylpyrrolidone (PVP) was added into membrane dope solution as a pore-forming agent. Four pieces of membranes (M1, M2, M3 and M4) were fabricated with different active layer coatings to compare their morphological and performance properties. The differences between each sample were highlighted as follow: M1 (pristine PES), M2 (PES+PVP), M3 (PDA/PES+PVP) and M4 (Ag/PDA/PES+PVP). All membranes were characterized using scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, X-ray diffraction and contact angle analysis. The membrane performance was examined using pure water permeability (PWP) test, antibacterial test and humic acid (HA) rejection test. Pristine M1 membrane showed that PWP of 27.16 LMH/bar and HA rejection of 84 %. In this study, it was found that the addition of PVP as a pore agent into the membrane M2 increased water flux but slightly deteriorated HA rejection. Coating of PDA on M3 and immobilizing silver NP on M4 membrane surface have improved HA rejection but compromised PWP. The results showed that membrane M4 carried excellent antibacterial property and highest HA rejection among all fabricated membranes.

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Fabrication optimization of polyethersulfone (PES)/polyvinylpyrrolidone (PVP) nanofiltration membranes using Box–Behnken response surface method

Abstract: Herein response surface methodology (RSM) is employed to optimize the fabrication of polyethersulfone (PES) nanofiltration (NF) membranes via phase inversion.

Cited by 51 publications

References 47 publications

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

A Comprehensive Review on Polymeric Nano-Composite Membranes for Water Treatment

Fabrication of PES/PVP Water Filtration Membranes Using Cyrene®, a Safer Bio-Based Polar Aprotic Solvent

Synthesizing Ag/PDA/PES Antibacterial Membrane for Natural Organic Molecules Removal

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