Performance improvement of polysulfone ultrafiltration membrane using PANiEB as both pore forming agent and hydrophilic modifier

Zhao, Song; Wang, Zhi; Wei, Xin; Zhao, Binchao; Wang, Jixiao; Yang, Shangbao; Wang, Shichang

doi:10.1016/j.memsci.2011.10.006

Cited by 138 publications

(94 citation statements)

References 45 publications

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“…The peaks at 1323.99 cm -1 ,1294.79 cm -1 and 1169.77 cm -1 correspond to a symmetric stretch of the sulfone group (SO 2 ), and these results are consistent with previous works. 14,38 The FTIR-ATR spectroscopy was used to examine the functional groups of methylcellulose. The FTIR-ATR spectrum of MC ( Figure 6) shows that pure methylcellulose had an absorption band at 3468.28 cm -1 related to stretching vibration of hydroxyl group ν(O-H).…”

Section: Membrane Surface Chemistrymentioning

confidence: 99%

“…Generaly, water soluble polymers have been considered as pore-formers during membrane formation 45 . It is assumed that most of water soluble polymers can be leached out of the casting film and the sites where the polymer exists become micropores in the prepared membrane 14 . The evolutions found in crosssection confirm that the water soluble methylcellulose form pores when used, as additive, in membranes.…”

Section: Membrane Morphologymentioning

confidence: 99%

“…This results in a lower water flux and serious membrane fouling. Hence, polysulfone membranes without modification seem less suitable for application in industry 14,15 . In order to improve membrane permeability and anti-fouling behavior, several studies have been devoted to this subject.…”

Section: Introductionmentioning

confidence: 99%

“…Among these approaches, polymeric additives 15,16 are considered as an effective and convenient method because of their excellent performance and facility to handle. Polyvinylpyrrolidone [17][18][19] , poly (ethylene glycol) [20][21][22] and the polyaniline (emeraldine base) 14 were used as additives in the preparation of polysulfone membranes to promote their performances. Such additives act as a porogen which favors the formation of pores, also as agent for hydrophilizing the membranes surface.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Methylcellulose on the Properties and Morphology of Polysulfone Membranes Prepared by Phase Inversion

et al. 2017

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Polymer solutions of polysulfone (PSf) and methylcellulose (MC) in 1-methyl-2-pyrrolidone (NMP) were used to prepare ultrafiltration membranes by the phase inversion technique via immersion precipitation. The effect of MC additive on the structure and performances of the membranes was studied. The obtained membranes were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), infrared spectroscopy (FTIR-ATR), equilibrium water content (EWC), water contact angle, porosity and ultrafiltration experiments of polyethylene glycol solutions. It was found that all the PSf/MC membranes had higher porosity, more hydrophilic surface and more vertically finger like pores than PSf membrane. With an increase in MC content in the casting solution from 0.5% to 1.5%, the hydraulic permeability increases from 17.17 to 118.46 L.m -2 .h -1 .bar -1 , while the rejection decreases from 91.82% to 64.45% with PEG 35000. DSC scan and FTIR analysis confirmed that methylcellulose was trapped in the membranes matrix.

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Section: Membrane Surface Chemistrymentioning

confidence: 99%

Section: Membrane Morphologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Methylcellulose on the Properties and Morphology of Polysulfone Membranes Prepared by Phase Inversion

et al. 2017

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“…Poly(trimethylene terephthalate) (PTT) nanofiber membrane Li et al (2013), Xue et al (2010) Thin film composite (TFC) membrane Han (2013) PSf membrane Crock et al (2013), Zhao et al (2011) Poly ( Polyethersulfone (PES) membrane Madaeni and Bakhtiari (2012), Rahimpour et al (2012), Daraei et al (2013) Poly(amide-imide) (PAI) hollow fibre membrane Setiawan et al (2011), Zhang et al (2011 Ceramic asymmetric membrane Kim and der Bruggen (2010), DeFriend et al (2003), Tsuru et al (2001) Cellulose acetate blend membrane Han et al (2013), Mohammadi and Saljoughi (2009) Different morphological structures of these materials affect the glucose diffusivity though the materials.…”

Section: Membrane Type Schematic Of Cross-section Referencesmentioning

confidence: 99%

Glucose diffusion in tissue engineering membranes and scaffolds

Suhaimi

Das

2016

Reviews in Chemical Engineering

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Tissue engineering has evolved into an exciting area of research due to its potential in regenerative medicine. The shortage of organ donors as well as incompatibility between patient and donor pose an alarming concern. This has resulted in an interest in regenerative therapy where the importance of understanding the transport properties of critical nutrients such as glucose in numerous tissue engineering membranes and scaffolds is crucial. This is due to its dependency on successful tissue growth as a measure of potential cure for health issues that cannot be healed using traditional medical treatments. In this regard, the diffusion of glucose in membranes and scaffolds that act as templates to support cell growth must be well grasped. Keeping this in mind, this review paper aims to discuss the glucose diffusivity of these materials. The paper reviews four interconnected issues, namely, (i) the glucose diffusion in tissue engineering materials, (ii) porosity and tortuosity of these materials, (iii) the relationship between microstructure of the material and diffusion, and (iv) estimation of glucose diffusivities in liquids, which determine the effective diffusivities in the porous membranes or scaffolds. It is anticipated that the review paper would help improve the understanding of the transport properties of glucose in membranes and scaffolds used in tissue engineering applications.

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Effect of surface properties of polysulfone support on the performance of thin film composite polyamide reverse osmosis membranes

Yakavalangi

Rimaz

Vatanpour

2016

J of Applied Polymer Sci

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In this work, influence of initial conditions and surface characteristics of porous support layer on structure and performance of a thin film composite (TFC) polyamide reverse osmosis (RO) membrane was investigated. The phase inversion method was used for casting of polysulfone (PSf) supports and interfacial polymerization was used for coating of polyamide layer over the substrates. The effect of PSf concentrations that varied between 16 wt % and 21 wt %, and kind of the solvent (DMF and NMP) used for preparation of initial casting solution were investigated on the properties of the final RO membranes. SEM imaging, surface porosity, mean pore radius, and pure water flux analysis were applied for characterization of the supports. The substrate of the membrane, which synthesized with 18 wt % of PSf showed the most porosity and the synthesized RO membrane had the lowest salt rejection. In case of the solvents, the membranes synthesized with DMF presented better separation performance that can be attributed to their lower thickness and sponge-like structure. The best composition of support for TFC RO membranes reached 16 wt % PSf in DMF solvent.

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Performance improvement of polysulfone ultrafiltration membrane using PANiEB as both pore forming agent and hydrophilic modifier

Cited by 138 publications

References 45 publications

Effects of Methylcellulose on the Properties and Morphology of Polysulfone Membranes Prepared by Phase Inversion

Effects of Methylcellulose on the Properties and Morphology of Polysulfone Membranes Prepared by Phase Inversion

Glucose diffusion in tissue engineering membranes and scaffolds

Effect of surface properties of polysulfone support on the performance of thin film composite polyamide reverse osmosis membranes

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