Antifouling polysulfone ultrafiltration membranes with pendent sulfonamide groups

Xu, Zhaozan; Liao, Jiayou; Tang, Hai; Li, Nanwen

doi:10.1016/j.memsci.2017.11.064

Cited by 107 publications

(36 citation statements)

References 54 publications

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“…In addition, the roughness of surface is known as significant parameter for UF membranes which could have important impact on the membrane properties such as fouling, surface hydrophilicity, and water flux . Figure shows the AFM images and mean roughness ( S a ) of the prepared membranes at a scan size of 100 × 100 nm.…”

Section: Resultsmentioning

confidence: 99%

“…Finally, based on these results, PAS and PAE can be considered as an effective alternative with enhanced performances membrane Polysulfone BSA solution (0.5 g/L) 70.2 8 Cellulose diacetate BSA solution (0.2 g/L) 73.9 62 Polyphenylsulfone BSA solution (1.0 g/L) 55.7 63 Sulfonated polyphenylsulfone (sulfonation degree 20%)…”

Section: Antifouling Properties Of the Membranesmentioning

confidence: 97%

“…Researchers have used different polymers to prepare UF membrane but most common polymers are polyethersulfone (PES), polyacrylonitrile, polysulfone, polyetherimide, poly(vinylidene fluoride), poly(vinyl chloride), and cellulose acetate . Compared with other polymers, the PES is a suitable choice for UF membrane preparation, due to outstanding mechanical, thermal, and chemical stability, simple processing, suitable environmental toleration, and solubility in various polar solvent .…”

Section: Introductionmentioning

confidence: 99%

“…Ultrafiltration (UF) is an energy-saving and efficient membrane system, extensively employed for the application of water purification, oil-water separation, food and dairy industries, pretreatment for reverse osmosis and nanofiltration membranes, separation and purification in the textile wastewater treatment, and protein purification. [1][2][3][4][5] Researchers have used different polymers to prepare UF membrane but most common polymers are polyethersulfone (PES), 6 polyacrylonitrile, 7 polysulfone, 8 polyetherimide, 9 poly(vinylidene fluoride), 10 poly(vinyl chloride), 11 and cellulose acetate. 12 Compared with other polymers, the PES is a suitable choice for UF membrane preparation, due to outstanding mechanical, thermal, and chemical stability, simple processing, suitable environmental toleration, and solubility in various polar solvent.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Structural manipulation of PES constituents to prepare advanced alternative polymer for ultrafiltration membrane

Rezania

Vatanpour

Arabpour

et al. 2019

J of Applied Polymer Sci

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Polyethersulfone (PES) is the most well‐known polymer for the preparation of ultrafiltration (UF) membrane, but its membrane suffers from fouling. In this study, two engineered polymers were synthesized to provide optimal antifouling properties for UF membranes that simultaneously benefit from good properties of polyamide and PES. The choice of polyamide is due to its prominent characteristics and the convenience of its synthesis with various functional groups in a cost‐effective way. Two hydroxyl containing polyamide bearing sulfone groups (PAS) and ether group (PAE) were synthesized by polycondensation method. The UF membranes were fabricated using the phase inversion method via immersion precipitation of PAS, PAE, and PES in dimethylacetamide, as a solvent and water, as a nonsolvent. The obtained membranes were compared and characterized by means of atomic force microscopy, scanning electron microscopy, contact angle, and Fourier transform infrared spectroscopy in the attenuated total reflection mode. The performance of membranes illustrated that the PAS and PAE membranes in comparison with the PES membrane had better porosity, water permeability, lesser protein fouling, more vertically finger‐like pores, and more hydrophilic surface. The water permeability of PES, PAE, and PAS was 7.3, 64.0, and 78.0 L m−2 h−1 while their flux recovery ratio was 59.4, 83.3, and 86.7%, respectively. The promising permeability and antifouling properties of the PAS are potentially applicable in the efficient industrial separation and wastewater treatment. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48690.

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Section: Resultsmentioning

confidence: 99%

Section: Antifouling Properties Of the Membranesmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Structural manipulation of PES constituents to prepare advanced alternative polymer for ultrafiltration membrane

Rezania

Vatanpour

Arabpour

et al. 2019

J of Applied Polymer Sci

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show abstract

“…Polysulfone (PSU) is one of the most popular thermoplastic materials used in microfiltration applications and has become a continuous subject of research for membrane scientists. Chemical stability over a wide range of pH, good thermal resistance (150–170 °C), the ability to dissolve in many aprotic polar solvents such as dimethylformamide (DMF), dimethylacetamide, nitrobenzene, halogen derivatives and dimethylsulfoxide as well as high mechanical strength are some of its significant properties . PSU membranes are commonly prepared by the phase inversion technique, which has several drawbacks such as residual solvent and a limited range of pore size .…”

Section: Introductionmentioning

confidence: 99%

Optimizing the electrospinning conditions of polysulfone membranes for water microfiltration applications

Rasouli

Pirsalami

Zebarjad

2019

Polymer International

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Polysulfone (PSU) is a popular material in microfiltration applications. In this study, the preparation of PSU membranes via electrospinning technology was investigated and optimized. Solutions with three different concentrations (15, 20 and 25 wt%) of PSU in dimethylformamide were electrospun at three different feed rates (1.5, 2.5 and 3.5 mL h−1) and voltages (12.5, 15 and 18 kV). The morphologies of the samples were studied using SEM. The results showed that the samples prepared from a 15 wt% solution concentration have beads‐on‐string morphologies. As the solution concentration is increased to 20 and 25 wt%, the beads disappear and uniform fibers with average diameters ranging from 0.876 to 2.078 μm depending on the voltage and the feed rate are obtained. The optimum electrospinning conditions for the highest wettability with minimum operating pressure were predicted to be a solution concentration of 25 wt%, a feed rate of 3.5 mL h−1 and a voltage of 18 kV. The prediction was verified by contact angle test measurements and filtration experiments. © 2019 Society of Chemical Industry

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Outstanding antifouling performance of poly(vinylidene fluoride) membranes: Novel amphiphilic brushlike copolymer blends and one‐step surface zwitterionization

Wang

Liu

et al. 2019

J of Applied Polymer Sci

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In this study, we endowed a poly(vinylidene fluoride) (PVDF) membrane with outstanding antifouling ability by blending the hierarchical amphiphilic brushlike copolymer [poly(hydroxyethyl methacrylate)-b-polydimethylsiloxane-b-poly(hydroxyethyl methacrylate)]-gpoly(N,N-dimethylamino-2-ethyl methacrylate) with different initial monomer/initiator feed ratios and performing a one-step surface zwitterionization of spontaneously segregated poly(N,N-dimethyl aminoethyl methacrylate) segments. Interestingly, nanoscale granular micelles were formed on the surface during zwitterionization because of the migration and self-assembly of the amphiphilic copolymer; this contributed to the membrane hydrophilicity and antifouling ability. During the filtration of the model foulant bovine serum albumin (BSA) aqueous solution, the BSA rejection ratio and flux recovery ratio increased remarkably to 94.8 and 100.0%, respectively. Moreover, the modified membranes also possessed stable and durable antifouling properties after three cycles of BSA filtration. Thus, this study provided a versatile method for constructing a PVDF ultrafiltration membrane that could achieve high permeability and good antifouling properties in efficient wastewater treatment.

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Antifouling polysulfone ultrafiltration membranes with pendent sulfonamide groups

Cited by 107 publications

References 54 publications

Structural manipulation of PES constituents to prepare advanced alternative polymer for ultrafiltration membrane

Structural manipulation of PES constituents to prepare advanced alternative polymer for ultrafiltration membrane

Optimizing the electrospinning conditions of polysulfone membranes for water microfiltration applications

Outstanding antifouling performance of poly(vinylidene fluoride) membranes: Novel amphiphilic brushlike copolymer blends and one‐step surface zwitterionization

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