Formation and characterization of (melamine–TMC) based thin film composite NF membranes for improved thermal and chlorine resistances

Han, Runlin

doi:10.1016/j.memsci.2012.08.017

Cited by 80 publications

(26 citation statements)

References 24 publications

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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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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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“…Chlorine attack can initiate conformational transformation of the polyamide segments and thus induce the deterioration of separation performance [53]. The chlorine resistance of virgin and modified membranes was evaluated by crossflow filtration of 1 g·l -1 MgSO 4 aqueous solution at 0.7 MPa after membrane immersion of NaOCl solution.…”

Section: Chlorine Resistance Of Nanofiltration Membranesmentioning

confidence: 99%

Effects of zinc oxide Nanospheres on the Separation performance of Hollow fiber poly(piperazine-amide) composite nanofiltration membranes

Shi

Zhu

et al. 2016

Fibers Polym

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The inner-skinned hollow fiber composite (HFC) nanofiltration (NF) membranes were modified through the incorporation of zinc oxide nanospheres in the poly(piperazine amide) layer during the interfacial polymerization (IP) process. The active layer was coated on the inner surface of polysulfone (PSF) support membrane via Two-way coating technique. The chemical composition and morphology of HFC membrane surface were evaluated through the Attenuated Total Reflectance Fourier Transform Infrared spectroscopy (ATR-FTIR) and Scanning Electronic Microscopy (SEM). The effects of zinc oxide (ZnO) nanospheres on membrane performance including the hydrophilicity, separation performance and chlorine resistance were investigated. The results showed that the modified HFC membranes with low concentration ZnO nanospheres (1.5 wt%) had an improved flux (33.8 L·m -2 ·h -1 ) meanwhile the salt rejection of MgSO 4was well maintained (92.2 %) at 0.7 MPa. The introduction of ZnO also dramatically enhanced the chloride resistance of composite NF membranes in comparison with the control membranes prepared without ZnO. Therefore, nano metallic oxide like ZnO could be considered as a potential modifier to improve the performance of HFC nanofiltration membranes.

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“…(2016) [1][2][3][4][5][6] www.deswater.com doi: 10.1080/19443994.2016.1189852 nanocomposite membranes are also prepared via interfacial polymerization process while nanoparticles are incorporated in the polyamide dense layer to increase the hydrophilicity or surface charge density without sacrificing the separation efficiency of the composite membrane [5]. Electrochemical processing is an important part of the membrane industry.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…Nanofiltration membrane has been widely used in desalination, removing heavy metal ions and wastewater treatment for its relative low operation pressure, low investment, low energy consumptions, high permeation flux, and high rejections of multivalent salts [1]. Negatively charged nanofiltration membrane has high rejection to multivalent salts by cooperating the sieve effect and Donnan effect because of the nanosized pores and high charge density in the membrane surface [2].…”

Section: Introductionmentioning

confidence: 99%

Effect of electric field intensity on the performance of poly(piperazine amide) nanofiltration membranes

Han

Zhang

Jian

2016

Desalination and Water Treatment

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A B S T R A C TNanofiltration membrane has high flux and rejection to inorganic salts at relative low operation pressure, which is widely used in desalination and wastewater treatment. Negatively charged nanofiltration membrane prepared with interfacial polymerization method has high rejection to anion with high valence because of Donnan effect. In this work, negatively charged poly(piperazine amide) nanofiltration membranes with different rejections were used in separation of salt solution and low voltage direct current (LVDC) electric field was involved to increase the surface electric charge density to improve the membrane rejections to inorganic salts. When the forward electric field intensity was increased from 0 to 16 V/cm, the membrane rejections were all increased. The rejection to Na 2 SO 4 of membrane (NO2) increased from 68 to 93%, while the membrane flux did not change obviously. At the same time, when the forward electric intensity is elevated, the membranes with low rejections show obvious elevation of permselectivity while the membranes with high rejections have limited elevation of performance. When reversed electric field was applied, the rejection to Na 2 SO 4 of membrane (NO5) was decreased from 68 to 36%, while the flux changed little. It was demonstrated that the applied LVDC electric field can affect the surface charge density and change the permselectivity of negatively charged nanofiltration membranes, which is meaningful in desalination.

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Formation and characterization of (melamine–TMC) based thin film composite NF membranes for improved thermal and chlorine resistances

Cited by 80 publications

References 24 publications

Glucose diffusion in tissue engineering membranes and scaffolds

Glucose diffusion in tissue engineering membranes and scaffolds

Effects of zinc oxide Nanospheres on the Separation performance of Hollow fiber poly(piperazine-amide) composite nanofiltration membranes

Effect of electric field intensity on the performance of poly(piperazine amide) nanofiltration membranes

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