A comparison between polysulfone, zirconia and organo-mineral membranes for use in ultrafiltration

Doyen, W.; Adriansens, W.; Molenberghs, Bart; Leysen, R.

doi:10.1016/0376-7388(95)00124-7

Cited by 52 publications

(22 citation statements)

References 11 publications

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“…Applications such as alumina membranes for juice processing [1], protein separation [2], and oil/water emulsion separation [3], titania membranes for wastewater processing [4], zirconia membranes for processing vegetable oil [5] and food [6], zeolites for the dehydration of organic solvents [7], cobalt silica membranes for ammonia separation from waste waters [8] and carbonized templated silica membranes for desalination [9] are some of many examples. Inorganic membranes have a very wide range of pore sizes from microfiltration to ultrafiltration to nanofiltration and even down to the sub-nanometer range depending on the materials of choice and synthesis conditions.…”

Section: Introductionmentioning

confidence: 99%

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Jalil

Wang²,

Yacou

et al. 2017

Journal of Membrane Science

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This work shows the preparation and separation performance assessment of carbon membranes derived from phenolic resin by a vacuum-assisted method and carbonisation in an inert atmosphere.The vacuum time played an important role in tailoring the structure of the membranes. For instance, pore volumes and surface areas increased from 0.81 and 834 to 2.2 cm 3 g -1 and 1910 m 2 g -1 , respectively, as the vacuum time exposure increased from 0 to 1200 s. The significant structural changes correlated very well with water permeation, as fluxes increased by 91% as the vacuum time increased from 0 to 1200s, reaching up to 169 kg m -2 h -1 at 5 bar. Molecular weight cut-off tests showed no rejection for the smaller glucose and sucrose molecules, though this increased to ~ 80% and full rejection for 36kD and 400kD polyvinyl pyrrolidine. Interestingly, FTIR spectra showed that the peaks of C-H stretching vibration (2800-3200 cm -1 ) and C-O stretching (1030 cm -1 ) became more pronounced as a function of increasing vacuum time, strongly suggesting that the use of vacuum further assisted in the polycondensation of phenolic oligomers. Based on these outcomes, a cluster to cluster model is proposed, whereby vacuum application promoted crosslinking reactions of the phenolic resin, creating microporous regions within the clusters, and mesoporous regions between the clusters. 2 Graphical AbstractKeywords: carbon membranes; vacuum-assisted method; water; molecular weight cut-off.

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Section: Introductionmentioning

confidence: 99%

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Jalil

Wang²,

Yacou

et al. 2017

Journal of Membrane Science

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“…Polysulfone (PS) membrane is widely used in the field of water treatment for its high mechanical strength, good thermal and chemical stabilities [7]. BENAVENTEA and JONSSON [8] investigated electrical and electrokinetic phenomena of a porous noncommercial PS membrane in different concentrations of NaCl and MgCl 2 solutions.…”

Section: Introductionmentioning

confidence: 99%

Characterization of polysulfone hollow-fiber ultrafiltration membrane and its cleaning efficiency by streaming potential and flux method

Qiu

Miao

2009

J. Cent. South Univ. Technol.

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Polysulfone (PS) hollow-fiber ultrafiltration membrane was characterized combined with flux and streaming potential in single electrolyte solutions. The effects of trans-membrane pressure, electrolyte concentration, ion valence and pH value of electrolyte solution on the streaming potential (SP) of the membrane were investigated. The zeta potential and surface charge density of the membrane were calculated on the basis of Helmholtz-Smoluchowski equation and Gouy-Chapmann theory. The results indicate that the valence and concentration of cation have a greater influence on the SP and surface charge density of PS membrane than those of anion, and the pH value of electrolyte solution has great effects on the SP and zeta potential of the membrane surface. Both the absolute value of the streaming potential and water flux of the adsorbed membrane decrease, compared with those of the clean membrane. The streaming potential and flux of the cleaned membrane can be completely recovered by cleaning with the mass fraction of 0.8% EDTA at pH=10.

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“…In recent years, with the development of novel type of membranes, many research groups have employed this technique for organic dehydration [5][6][7][8]. The key to the success in PV dehydration is the development of a suitable poly-mer membrane that offers high selectivity, flux and long-term stability, along with favorable mechanical strength to withstand the operating conditions [9]. However, optimizing these characteristics is a formidable task.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposite Membranes of Poly(Vinyl Alcohol) Loaded with Polyaniline-Coated TiO2 and TiO2 Nanoparticles for the Pervaporation Dehydration of Aqueous Mixtures of 1,4-Dioxane and Tetrahydrofuran

Aminabhavi

Patil

2010

Designed Monomers and Polymers

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Nanocomposite membranes of poly(vinyl alcohol)-polyaniline (PANI)-coated titanium dioxide (PVA-PANI-TiO 2 ), as well as TiO 2 , cross-linked with glutaraldehyde were tested for their suitability in dehydrating aqueous mixtures of 1,4-dioxane or tetrahydrofuran (THF) by pervaporation (PV). The effect of feed composition and filler loading on PV separation performance was examined. Sorption studies were performed in feed mixtures to assess the extent of interaction between membranes and feed components. The addition of a small amount of nano-sized filler particles into a cross-linked PVA membrane was responsible for an increase in membrane selectivity to water. Among the cross-linked nanocomposite PVA membranes, TiO 2 coated with 0.5 wt% PANI gave higher sorption than other membranes. Sorption of the cross-linked (unfilled) PVA membranes was higher compared to all the nanocomposite membranes. Addition of filler particles reduced the extent of sorption with improved membrane performance.

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A comparison between polysulfone, zirconia and organo-mineral membranes for use in ultrafiltration

Cited by 52 publications

References 11 publications

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Vacuum-assisted tailoring of pore structures of phenolic resin derived carbon membranes

Characterization of polysulfone hollow-fiber ultrafiltration membrane and its cleaning efficiency by streaming potential and flux method

Nanocomposite Membranes of Poly(Vinyl Alcohol) Loaded with Polyaniline-Coated TiO2 and TiO2 Nanoparticles for the Pervaporation Dehydration of Aqueous Mixtures of 1,4-Dioxane and Tetrahydrofuran

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