Nanostructured hybrid membrane polysulfone-carbon nanotubes for hemodialysis

Nechifor, Gheorghe; Voicu, Ştefan Ioan; Nechifor, A.C.; Gârea, Sorina Alexandra

doi:10.1016/j.desal.2007.11.089

Cited by 102 publications

(65 citation statements)

References 13 publications

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“…Obtaining membranes can be influenced by the addition of small amounts of surfactants [4,5]. The membrane process can be controlled by using surfactants [6,7]. a Surfactants are chemicals which, in solutions, concentrate on the surface and solubilize materials that have little affinity with each other [8].…”

Section: Introductionmentioning

confidence: 99%

Polimeric membranes prepared with surfactants used for ultrafiltration of aqueous solutions of food dye

Popa¹,

Nechifor²,

Popa³

et al. 2017

Studia UBB Chemia

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ABSTRACT.The experiments carried out in this paper tested the effectiveness of the polysulfone-dimethyldioctodecylammonium bromide (PSU-DMOA) and polysulfone-Tween 80 in dead-end facilities. The efficiency of these membranes has been proved by determining the permeate flow and the retention coefficient. Analyzing the experimental data, it was found that for the polysulfone-dimethyldioctodecylammonium bromide composite membrane the retention rate is higher than for the polysulfone-Tween 80 composite membrane, the t values being obtained for the highest pressure used in the system.

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Section: Introductionmentioning

confidence: 99%

Polimeric membranes prepared with surfactants used for ultrafiltration of aqueous solutions of food dye

Popa¹,

Nechifor²,

Popa³

et al. 2017

Studia UBB Chemia

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show abstract

“…The removal of Pb 2+ and Hg 2+ by dialysis from 10 -5 M-solutions using CNT/PSU composite membranes allowed for a superior retention, especially in the case of the membranes with double-wall carbon nanotubes [80]. The retention of Pb 2+ achieved was 93, 90, and 82 %, after an hour using untreated PSU, SWNT/PSU, and DWNT/PSU, respectively.…”

Section: Effect Of Morphology Control On Psu Membrane Performancementioning

confidence: 97%

“…Once the concentration of SWNT was increased to 1 %, 3 %, and 5 %, the adsorption capacity of PSU became 9.1, 29.9, and 49.8 mg Pb 2þ dm À2 of membrane, respectively. Alternatively, when the concentration of DWNT was increased to 1 %, 3 %, and 5 %, respectively [80], the adsorption capacity of PSU became 12.3, 35.4, and 56.2 mg Pb 2þ dm À2 of membrane, respectively.…”

Section: Carbon Nanotube/polysulfone Composite Membranesmentioning

confidence: 99%

“…As shown in b) a) Figure 16. SEM images of PSU membranes; (a) untreated PSU; (b) PSU with double-wall carbon nanotubes [80].…”

Section: Carbon Nanotube/polysulfone Composite Membranesmentioning

confidence: 99%

“…Carbon nanotube/polysulfone composite membranes were synthesized to find ways of controlling morphology and enhancing the performance using single-wall (SWNT) and double-wall (DWNT) nanotubes [80]. As shown in b) a) Figure 16.…”

Section: Carbon Nanotube/polysulfone Composite Membranesmentioning

confidence: 99%

See 2 more Smart Citations

Morphology Control of Polysulfone Membranes in Filtration Processes: a Critical Review

et al. 2015

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Polysulfone (PSU) membranes have been widely applied in microfiltration and ultrafiltration processes due to their excellent properties, such as chemical inertness across the entire pH range, compressive strength, and thermal stability. Despite these advantages, the application of PSU membranes in filtration processes has often been restricted due to their hydrophobic nature, which results in serious membrane fouling and a reduced permeate flux. Moreover, PSU membranes suffer from several disadvantages, including bulky structure, low binding force between fibers, and poor mechanical properties. The key factor in the development and application of polymeric membranes is the control of its polymeric morphology due to the significant influence of membrane morphology on the membrane performance. Effective techniques of controlling PSU membrane morphology are accessed, and the effects of the morphological control on mechanical properties, chemical stability, membrane performance, and membrane fouling are investigated. Findings from various individual studies were analyzed and discussed in order to provide a critical review of this subject. The results emphasized that the membrane pore size and surface porosity mostly governs PSU membrane morphology, which enhances membrane performance and reduces membrane fouling.

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Material Separations by Other Membrane Processes

2017

Science and Technology of Separation Membranes

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Nanostructured hybrid membrane polysulfone-carbon nanotubes for hemodialysis

Cited by 102 publications

References 13 publications

Polimeric membranes prepared with surfactants used for ultrafiltration of aqueous solutions of food dye

Polimeric membranes prepared with surfactants used for ultrafiltration of aqueous solutions of food dye

Morphology Control of Polysulfone Membranes in Filtration Processes: a Critical Review

Material Separations by Other Membrane Processes

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