Limiting thickness of polyamide–polysulfone thin-film-composite nanofiltration membrane

Polisetti, Veerababu; Vyas, Bhavik B.; Singh, Puyam S.; Ray, Paramita

doi:10.1016/j.desal.2014.05.007

Cited by 80 publications

(38 citation statements)

References 20 publications

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“…But the rejection of NF membrane decreases and the flux increases with the SDS concentration further increasing after the concentration of SDS exceed 0.15%. This result is similar with Zhang Haoqin' s research [11] .…”

Section: Effect Of Sds Concentrationsupporting

confidence: 82%

The Preparation of Composite NF Membrane by Interfacial Polymerization Between Sulfanilic Acid and Trimesoyl Chloride

Deng¹,

Xiao²,

Deng³

et al. 2018

dteees

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Abstract. The nanofiltration (NF) membrane has many characteristics, such as low operating pressure, good selective separation, etc. These advantages make it have a good application prospect in the field of water treatment. The hollow fiber NF membrane was prepared by interfacial polymerization (IP), in which Sulfanilic Acid (SA) was used as water phase monomer and trimesoyl chloride (TMC) was used as organic phase monomer. Its performance was systematically analyzed. IR shows that the IP polymer contains amide group which indicates the occasion of IP between SA and TMC. The flux of NF membrane reduces and rejection increases with the increase of the SA concentration, TMC concentration and IP time. Its flux is lower and rejection is higher as the concentration of sodium carbonate (Na 2 CO 3 ) and sodium dodecyl sulfonate (SDS) is 1.5% and 0.15%, respectively.

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Section: Effect Of Sds Concentrationsupporting

confidence: 82%

The Preparation of Composite NF Membrane by Interfacial Polymerization Between Sulfanilic Acid and Trimesoyl Chloride

Deng¹,

Xiao²,

Deng³

et al. 2018

dteees

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“…In the published literature, the surface properties of the substrates were altered by varying the polymer concentration in the casting solution [7,23], adding polyvinylpyrrolidone (PVP) or poly (ethylene glycol) (PEG) [18,24], and blending zeolite nanoparticles [25]. These studies stated that the PA TFC membranes of high-flux with moderate selectivity or high-selectivity with moderate flux could be prepared by optimizing the substrate properties from a same preparation condition [23].…”

Section: Introductionmentioning

confidence: 98%

Improved performance of polyamide thin-film composite nanofiltration membrane by using polyetersulfone/polyaniline membrane as the substrate

Zhu

Zhao

Wang

et al. 2015

Journal of Membrane Science

122

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“…The peak at 1639 cm −1 corresponded to the C─O band within the polyamide structure and showed successful formation of polyamide. C─N stretching of the amide group was witnessed by the peak at 1588 cm −1 …”

Section: Resultsmentioning

confidence: 98%

Reinforced thin‐film composite nanofiltration membranes: Fabrication, characterization, and performance testing

Türken

Şengür-Taşdemir

Sayinli

et al. 2019

J of Applied Polymer Sci

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Hollow‐fiber (HF) membranes have the advantage of a higher packing density compared to flat‐sheet and spiral‐wound configurations. However, the low pressure tolerance of HF membranes limits their applications in nanofiltration (NF). In this study, reinforced thin‐film composite (r‐TFC) HF NF membranes were fabricated and evaluated in tests with water containing different salts and organic matter. Reinforced polysulfone ultrafiltration membranes were used as a support for a polyamide layer prepared from piperazine and trimesoyl chloride monomers. The interfacial polymerization conditions were optimized via selection of the trimesoyl chloride reaction time that gave the highest membrane performance. A specific permeate flux of 5.1 L m–2 h–1 bar–1, an MgSO4 rejection of 69%, and an NaCl rejection of 26% at a transmembrane pressure of 6 bars were obtained with the optimized r‐TFC membranes. Performance studies with water characterized by synthetic solution demonstrated removals of the total organic carbon, ultraviolet absorbance at 254 nm, and turbidity in excess of 65, 80, and 90%, respectively. The results of this study illustrate the feasibility of manufacturing r‐TFC HFs and using them in water‐treatment applications. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48001.

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Limiting thickness of polyamide–polysulfone thin-film-composite nanofiltration membrane

Cited by 80 publications

References 20 publications

The Preparation of Composite NF Membrane by Interfacial Polymerization Between Sulfanilic Acid and Trimesoyl Chloride

The Preparation of Composite NF Membrane by Interfacial Polymerization Between Sulfanilic Acid and Trimesoyl Chloride

Improved performance of polyamide thin-film composite nanofiltration membrane by using polyetersulfone/polyaniline membrane as the substrate

Reinforced thin‐film composite nanofiltration membranes: Fabrication, characterization, and performance testing

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