Sugar fractionation using surface-modified nanofiltration membranes

Malmali, Mahdi; Wickramasinghe, S. Ranil; Tang, Jianguo; Cong, Hailin

doi:10.1016/j.seppur.2016.04.025

Cited by 16 publications

(14 citation statements)

References 44 publications

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“…For the PES membranes, the results show that the NaOH treatment (3.6 nm) had no significant effect on the roughness of the native PES structure (3.5 nm) but that adding 4 and 10 bilayers increases the roughness to 17 and 16 nm, respectively. A similar trend of initial enhancement of surface roughness was also reported in the literature on deposition of PSS and poly(diallyldimethylammonium) chloride on 5 and 50 kDa PES membrane followed by a slight decrease . This was attributed to the deposition of first layer at the entrance or inside the membrane pores which led to partial coverage of the membrane surface and then fulfilled on subsequent deposition of bilayers.…”

Section: Resultssupporting

confidence: 86%

“…Supporting Information Figure S2 shows the complete set of AFM images for PES membranes as a function of number of bilayers. Both of these membranes showed an overall enhancement in surface roughness on deposition of PE layers which was also reported by Malmali et al . and Teella et al .…”

Section: Resultssupporting

confidence: 85%

“…Spectral data shows a decrease in the typical absorption peaks of the PES backbone for 1153 cm −1 (asymmetric vibration of ‐SO 2 ), 1323 cm −1 (symmetric vibration of ‐SO 2 ), 1489 cm −1 (aromatic ring stretch of CC), and 1578 cm −1 (aromatic CH stretch) as a function of increasing deposited bilayers. The peak at 1011 cm −1 corresponds to the in‐plane skeleton vibration of benzene ring as suggested by Malmali et al . They have reported the growth of this peak only on deposition of bilayers of PEs which were having benzene moieties.…”

Section: Resultsmentioning

confidence: 68%

“…Some efforts have been made to develop effective techniques for ILs recovery, such as chromatography, salting‐out precipitation, adsorption, extraction, supercritical carbon dioxide, and membrane separation . Membrane filtration technology has proved to be effective for a large variety of industrial applications . Different membrane separation processes such as nanofiltration (NF), reverse osmosis (RO), electrodialysis, and membrane distillation have been successfully employed to concentrate aqueous solution of ionic liquids.…”

Section: Introductionmentioning

confidence: 99%

“…The layer‐by‐layer (LBL) deposition of charged polyelectrolyte (PE) pairs is an attractive technique for the fabrication of nanostructured multilayer membranes due to its simplicity and control over film thickness, pore size and charge density . It has been widely used for formation of membranes tuned for high permeance and high rejection for many diverse membrane separations, such as RO, NF, pervaporation and forward osmosis with specific applications, such as virus purification, sugar fractionation, and diverse ion selective separations …”

Section: Introductionmentioning

confidence: 99%

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Polyelectrolyte multilayer modified nanofiltration membranes for the recovery of ionic liquid from dilute aqueous solutions

Avram

Ahmadiannamini

et al. 2017

J of Applied Polymer Sci

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The feasibility of nanofiltration membranes fabricated by static polyelectrolyte layer-by-layer deposition of poly(styrene sulfonate) and poly(allylamine hydrochloride) on poly(ether sulfone) ultrafiltration and alumina microfiltration membranes for the recovery of ionic liquid from low molecular weight sugar was investigated. The surface properties of these modified membranes were correlated with their performances. The selectivity for 1-butyl-3-methylimidazolium chloride over cellobiose and glucose was found to be as high as 50.5/2.3 for modified alumina and 32.3/3.5 for modified poly(ether sulfone) membranes with optimized number of bilayers. The values for membrane permeance were 4.8 and 2.5 L m 21 h 2 bar 21 , respectively. For low depositions, the separation mechanism was predominantly governed by size-exclusion. For higher depositions, the enhanced negative zeta potential of the modified membranes suggested preferred dominating electrostatic interactions, resulting in high selectivity of ionic liquids over low molecular weight sugars. At very high depositions, the molecular weight cut-off of the membrane becomes constricting for size-exclusion effect.

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Section: Resultssupporting

confidence: 86%

Section: Resultssupporting

confidence: 85%

Section: Resultsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Polyelectrolyte multilayer modified nanofiltration membranes for the recovery of ionic liquid from dilute aqueous solutions

Avram

Ahmadiannamini

et al. 2017

J of Applied Polymer Sci

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Blended Membrane of Polyethylene‐Glycol‐Grafted‐PIM‐1 and Tröger's Base Polymer for the Separation of Pentose and Hexose

Liang,

Wang,

et al. 2024

ChemistrySelect

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Monosaccharides are vital building blocks in bioengineering applications; however, their extraction from intricate mixtures is challenging and uses substantial amounts of energy. Polymers of intrinsic microporosity (PIMs) offer an innovative avenue for separating monosaccharides. We modified PIM‐1membranes to improve the glucose/xylose separation by incorporating polyethylene glycol monomethyl ether (mPEG). The optimal mPEG (molecular weight: 1000 Da; mass fraction: 2.5 %; solvent: methanol) delivered a xylose separation coefficient of 2.62. With the hybrid membrane of PIM‐1‐mPEG (50 w.t.%) and hydrophilic Tröger's base polymerer (DMBP‐TB, 50 w.t.%), the separation factor for xylose/glucose in an aqueous solution was 2.51 for single‐stage running and 11.32 after five‐stage running. There are large fractions of micropores for PIM‐1‐mPEG, and there is difference on solute‐membrane interactions for pentose/hexose, which are regarded to be the main driving force for the high pentose/hexose selectivity in methanol. The blending of PIM‐1‐mPEG and DMBP‐TB, integrates the microporosity and hydrophilicity, finally endues the high pentose/hexose selectivity in aqueous solution. These microporous membranes are promising materials for efficiently separating monosaccharides and jnl> small organic molecules while minimizing energy consumption. We established a solid foundation for further exploring microporous membranes for various applications, notably in bioengineering.

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Nanofiltration for separation and purification of saccharides from biomass

Tan

Luo

et al. 2021

Front. Chem. Sci. Eng.

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Saccharide production is critical to the development of biotechnology in the field of food and biofuel. The extraction of saccharide from biomass-based hydrolysate mixtures has become a trend due to low cost and abundant biomass reserves. Compared to conventional methods of fractionation and recovery of saccharides, nanofiltration (NF) has received considerable attention in recent decades because of its high selectivity and low energy consumption and environmental impact. In this review the advantages and challenges of NF based technology in the separation of saccharides are critically evaluated. Hybrid membrane processes, i.e., combining NF with ultrafiltration, can complement each other to provide an efficient approach for removal of unwanted solutes to obtain higher purity saccharides. However, use of NF membrane separation technology is limited due to irreversible membrane fouling that results in high capital and operating costs. Future development of NF membrane technology should therefore focus on improving material stability, antifouling ability and saccharide targeting selectivity, as well as on engineering aspects such as process optimisation and membrane module design.

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Sugar fractionation using surface-modified nanofiltration membranes

Cited by 16 publications

References 44 publications

Polyelectrolyte multilayer modified nanofiltration membranes for the recovery of ionic liquid from dilute aqueous solutions

Polyelectrolyte multilayer modified nanofiltration membranes for the recovery of ionic liquid from dilute aqueous solutions

Blended Membrane of Polyethylene‐Glycol‐Grafted‐PIM‐1 and Tröger's Base Polymer for the Separation of Pentose and Hexose

Nanofiltration for separation and purification of saccharides from biomass

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