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Said N, Lau WJ, Zainol Abidin MN, Mansourizadeh A, Ismail AF. Fabrication and characterization of dual-layer hollow fibre membranes incorporating poly(citric acid)-grafted GO with enhanced antifouling properties for water treatment. ENVIRONMENTAL TECHNOLOGY 2024; 45:2944-2956. [PMID: 36976335 DOI: 10.1080/09593330.2023.2197127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Membrane fouling during the filtration process is a perennial issue and could lead to reduced separation efficiency. In this work, poly(citric acid)-grafted graphene oxide (PGO) was incorporated into a matrix of single-layer hollow fibre (SLHF) and dual-layer hollow fibrr (DLHF) membranes, respectively, aiming to improve membrane antifouling properties during water treatment. Different loadings of PGO ranging from 0 to 1 wt% were first introduced into the SLHF to identify the best PGO loading for the DLHF preparation with its outer layer modified by nanomaterials. The findings showed that at the optimized PGO loading of 0.7 wt%, the resultant SLHF membrane could achieve higher water permeability and bovine serum albumin rejection compared to the neat SLHF membrane. This is due to the improved surface hydrophilicity and increased structural porosity upon incorporation of optimized PGO loading. When 0.7 wt% PGO was introduced only to the outer layer of DLHF, the cross-sectional matrix of the membrane was altered, forming microvoids and spongy-like structures (more porous). Nevertheless, the BSA rejection of the membrane was improved to 97.7% owing to an inner selectivity layer produced from a different dope solution (without the PGO). The DLHF membrane also demonstrated significantly higher antifouling properties than the neat SLHF membrane. Its flux recovery rate is 85%, i.e. 37% better than that of a neat membrane. By incorporating hydrophilic PGO into the membrane, the interaction of the hydrophobic foulants with the membrane surface is greatly reduced.
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Affiliation(s)
- Noresah Said
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai, Malaysia
| | - Muhammad Nidzhom Zainol Abidin
- Department of Chemistry, Faculty of Science, Universiti Malaya, Jalan Profesor Diraja Ungku Aziz, Kuala Lumpur, Malaysia
| | - Amir Mansourizadeh
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch, Islamic Azad University, Gachsaran, Iran
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai, Malaysia
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2
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Alam J, Shukla AK, Arockiasamy L, Alhoshan M. Scale Design of Dual-Layer Polyphenylsulfone/Sulfonated Polyphenylsulfone Hollow Fiber Membranes for Nanofiltration. MEMBRANES 2023; 13:714. [PMID: 37623775 PMCID: PMC10456652 DOI: 10.3390/membranes13080714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/26/2023]
Abstract
This study focuses on the synthesis and characterization of dual-layer sulfonated polyphenylenesulfone (SPPSu) nanocomposite hollow fiber nanofiltration membranes incorporating titanium dioxide (TiO2) nanoparticles through the phase inversion technique. Advanced tools and methods were employed to systematically evaluate the properties and performance of the newly developed membranes. The investigation primarily centered on the impact of TiO2 addition in the SPPSu inner layer on pure water permeability and salt rejection. The nanocomposite membranes exhibited a remarkable three-fold increase in pure water permeability, achieving a flux of 5.4 L/m2h.bar compared to pristine membranes. The addition of TiO2 also enhanced the mechanical properties, with an expected tensile strength increase from 2.4 to 3.9 MPa. An evaluation of salt rejection performance using a laboratory-scale filtration setup revealed a maximal rejection of 95% for Mg2SO4, indicating the effective separation capabilities of the modified dual-layer hollow fiber nanocomposite membranes for divalent ions. The successful synthesis and characterization of these membranes highlight their potential for nanofiltration processes, specifically in selectively separating divalent ions from aqueous solutions, owing to their improved pure water flux, mechanical strength, and salt rejection performance.
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Affiliation(s)
- Javed Alam
- King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.K.S.); (L.A.); (M.A.)
| | - Arun Kumar Shukla
- King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.K.S.); (L.A.); (M.A.)
| | - Lawrence Arockiasamy
- King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.K.S.); (L.A.); (M.A.)
| | - Mansour Alhoshan
- King Abdullah Institute for Nanotechnology, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (A.K.S.); (L.A.); (M.A.)
- Department of Chemical Engineering, College of Engineering, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
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Tang Y, Lin Y, Ma W, Wang X. A review on microporous polyvinylidene fluoride membranes fabricated via thermally induced phase separation for MF/UF application. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119759] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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4
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Zhong D, Zhou J, Wang Y. Hollow-fiber membranes of block copolymers by melt spinning and selective swelling. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119374] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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5
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Hampu N, Werber JR, Chan WY, Feinberg EC, Hillmyer MA. Next-Generation Ultrafiltration Membranes Enabled by Block Polymers. ACS NANO 2020; 14:16446-16471. [PMID: 33315381 DOI: 10.1021/acsnano.0c07883] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Reliable and equitable access to safe drinking water is a major and growing challenge worldwide. Membrane separations represent one of the most promising strategies for the energy-efficient purification of potential water sources. In particular, porous membranes are used for the ultrafiltration (UF) of water to remove contaminants with nanometric sizes. However, despite exhibiting excellent water permeability and solution processability, existing UF membranes contain a broad distribution of pore sizes that limit their size selectivity. To maximize the potential utility of UF membranes and allow for precise separations, improvements in the size selectivity of these systems must be achieved. Block polymers represent a potentially transformative solution, as these materials self-assemble into well-defined domains of uniform size. Several different strategies have been reported for integrating block polymers into UF membranes, and each strategy has its own set of materials and processing considerations to ensure that uniform and continuous pores are generated. This Review aims to summarize and critically analyze the chemistries, processing techniques, and properties required for the most common methods for producing porous membranes from block polymers, with a particular focus on the fundamental mechanisms underlying block polymer self-assembly and pore formation. Critical structure-property-performance metrics will be analyzed for block polymer UF membranes to understand how these membranes compare to commercial UF membranes and to identify key research areas for continued improvements. This Review is intended to inform readers of the capabilities and current challenges of block polymer UF membranes, while stimulating critical thought on strategies to advance these technologies.
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Affiliation(s)
- Nicholas Hampu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jay R Werber
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Wui Yarn Chan
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Elizabeth C Feinberg
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Marc A Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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6
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Hampu N, Werber JR, Hillmyer MA. Co-Casting Highly Selective Dual-Layer Membranes with Disordered Block Polymer Selective Layers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45351-45362. [PMID: 32986409 DOI: 10.1021/acsami.0c13726] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Highly selective and water permeable dual-layer ultrafiltration (UF) membranes comprising a disordered poly(methyl methacrylate-stat-styrene)-block-poly(lactide) selective layer and a polysulfone (PSF) support layer were fabricated using a co-casting technique. A dilute solution of diblock polymer was spin coated onto a solvent-swollen PSF layer, rapidly heated to dry and disorder the block polymer layer, and subsequently immersed into an ice water coagulation bath to kinetically trap the disordered state in the block polymer selective layer and precipitate the support layer by nonsolvent-induced phase separation. Subsequent removal of the polylactide block generated porous membranes suitable for UF. The permeability of these dual-layer membranes was modulated by tuning the concentration of the PSF casting solution, while the size-selectivity was maintained because of the narrow pore size distribution of the self-assembled block polymer selective layer. Elimination of the thermal annealing step resulted in a dramatic increase in the water permeability without adversely impacting the size-selectivity, as the disordered nanostructure present in the concentrated casting solution was kinetically trapped upon rapid drying. The co-casting strategy outlined in this work may enable the scalable fabrication of block polymer membranes with both high permeability and high selectivity.
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Affiliation(s)
- Nicholas Hampu
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Jay R Werber
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Marc A Hillmyer
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Amphipathic Janus Membrane with Hierarchical Multiscale Hyperporous Structure for Interfacial Catalysis. MEMBRANES 2020; 10:membranes10080162. [PMID: 32717990 PMCID: PMC7465116 DOI: 10.3390/membranes10080162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/21/2020] [Accepted: 07/21/2020] [Indexed: 12/22/2022]
Abstract
The rational design and realization of multiscale porous structures has been a long-standing challenge in membrane science. Block copolymers (BCPs) with their self-assembly-enabled nanodomains have the potential to make structural breakthroughs. An amphipathic Janus membrane, with a hierarchical multiscale hyperporous structure constituted by polystyrene-b-poly(4-vinylpyridine) (PS4VP) and polyvinylidene fluoride (PVDF) blocks, was designed and synthesized in this work. Hydrophobic PVDF dominated one side of the membrane, and hydrophilic PS4VP, with nanopores that formed inside the macroporous channels of PVDF via a self-assembly approach, dominated the other side. Candida Rugosa Lipase (CRL), as a model biocatalyst, was immobilized in the PS4VP nanopores via injection. The immobilized lipase was exactly suspended at the interface of the organic and aqueous phases, owing to the amphipathic property of the Janus membrane. The designed structures and catalysis performances were further characterized. The immobilized lipase exhibited a three times higher specific activity than free lipase, and the relative activity still remained above 90% after 10 cycles of reusing, indicating the observable promotion and the guaranteed stability of the Janus membrane in interfacial catalysis. This work provided a general, facile and unique example for the design and synthesis of a hierarchical multiscale hyperporous membrane for interfacial catalysis.
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9
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Li N, Lu Q, Yin W, Xiao C, Li J. The structure and properties of poly(vinylidene fluoride)/ultrahigh-molecular -weight polyethylene blend hollow fiber membranes via TIPS with mixed diluents. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117527] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Sankhala K, Wieland DCF, Koll J, Radjabian M, Abetz C, Abetz V. Self-assembly of block copolymers during hollow fiber spinning: an in situ small-angle X-ray scattering study. NANOSCALE 2019; 11:7634-7647. [PMID: 30698584 DOI: 10.1039/c8nr06892e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We investigated the self-assembly of block copolymers during hollow fiber membrane (HFM) fabrication by conducting in situ small angle X-ray scattering (SAXS) and ex situ scanning electron microscopy (SEM) studies. SAXS enables us to follow the structural rearrangements after extrusion at different distances from the spinning nozzle. The kinetics of the spinning process is examined as a function of the composition of block copolymer solutions and the spinning parameters. We studied the influence of the extrusion rate on the block copolymer microdomains and their self-assembly in weakly segregated and ordered solutions. The addition of magnesium acetate (MgAc2) leads to the ordering of micelles in the block copolymer solution already at lower polymer concentrations and shows an increased number of micelles with larger domain spacing as compared to the pristine solution. The SAXS data show the effect of shear within the spinneret on the self-assembly of block copolymers and the kinetics of phase separation after extrusion. It is observed that the ordering of micelles in solutions is decreased as indicated by the loss of crystallinity while high extrusion rates orient the structures perpendicular to the fiber direction. The structural features obtained from in situ SAXS experiments are correlated to the structure in the block copolymer solutions in the absence of shear and the morphologies in flat sheet and HF membranes obtained by ex situ SEM. This allows a systematic and comparative study of the effects varying the microdomain ordering within different block copolymer solutions and the formed membrane structures.
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Affiliation(s)
- Kirti Sankhala
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Strasse 1, 21502 Geesthacht, Germany.
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11
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Sun D, Yue D, Li B, Zheng Z, Meng X. Preparation and performance of the novel PVDF ultrafiltration membranes blending with PVA modified SiO2
hydrophilic nanoparticles. POLYM ENG SCI 2018. [DOI: 10.1002/pen.25002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- De Sun
- Department of Chemical Engineering; Changchun University of Technology; Changchun 130012 People's Republic of China
| | - Dongmin Yue
- Department of Chemical Engineering; Changchun University of Technology; Changchun 130012 People's Republic of China
| | - Bingbing Li
- Department of Chemical Engineering; Changchun University of Technology; Changchun 130012 People's Republic of China
| | - Zhaoshan Zheng
- Beijing Titan Instruments Co., Ltd.; Beijing 100015 People's Republic of China
| | - Xiangchun Meng
- Department of Chemical Engineering; Changchun University of Technology; Changchun 130012 People's Republic of China
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12
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Lei H, Liu L, Huang L, Li W, Xing W. Novel anti-fouling PVDF-g-THFMA copolymer membrane fabricated via photoinduced Cu(II)-mediated reversible deactivation radical polymerization. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Su Y, Liu Y, Liu T, Wang X. Fabrication of dual‐layer poly(styrene‐
b
‐4‐vinyl pyridine)–poly(vinylidene fluoride) membranes with tailored pore sizes under 10 nm via surface quaternization. J Appl Polym Sci 2018. [DOI: 10.1002/app.47137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Y. Su
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical EngineeringTsinghua University Beijing 100084 People's Republic of China
| | - Y. Liu
- Aerospace Research Institute of Special Material and Processing TechnologyChina Aerospace Science and Industry Corp. Beijing 100074 People's Republic of China
| | - T. Liu
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical EngineeringTsinghua University Beijing 100084 People's Republic of China
| | - X. Wang
- Beijing Key Laboratory of Membrane Materials and Engineering, Department of Chemical EngineeringTsinghua University Beijing 100084 People's Republic of China
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14
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15
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Sankhala K, Koll J, Abetz V. Setting the Stage for Fabrication of Self-Assembled Structures in Compact Geometries: Inside-Out Isoporous Hollow Fiber Membranes. ACS Macro Lett 2018; 7:840-845. [PMID: 35650757 DOI: 10.1021/acsmacrolett.8b00402] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Fabrication of evaporation-induced self-assembled structures on easily accessible surfaces is an established strategy, while achieving such microphase-separated structures in compact geometries has been a long-standing goal. The requirement of comparatively less concentrated block copolymer (BCP) solution to pass through the compact geometries significantly reduces the stimulations required for self-assembly. The high polymer relaxation rates and decreased thermodynamic driving forces, as well as high capillary suction of dilute solutions in the porous substrates, complicates the BCP self-assembly and fabrication of the uniform coated layer, respectively. In this study, highly permeable robust poly(ether sulfone) hollow fiber membranes (PES HFM) with an inner diameter of approximately 1 mm are selected as compact geometries, and the isoporous structures are developed on top of ≤10 μm thin coated layer. This fabrication process introduces a technologically favored inside-out configuration for isoporous composite HFM with large bore diameters.
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Affiliation(s)
- Kirti Sankhala
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Joachim Koll
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
| | - Volker Abetz
- Helmholtz-Zentrum Geesthacht, Institute of Polymer Research, Max-Planck-Strasse 1, 21502 Geesthacht, Germany
- University of Hamburg, Institute of Physical Chemistry, Martin-Luther-King-Platz 6, 20146 Hamburg, Germany
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16
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Preparation of polyamide/polyacrylonitrile composite hollow fiber membrane by synchronous procedure of spinning and interfacial polymerization. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.01.059] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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The unidirectional regulatory role of coagulation bath temperature on cross-section radius of the PVDF hollow-fiber membrane. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.059] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Alam J, Shukla AK, Alhoshan M, Arockiasamy Dass L, Muthumareeswaran MR, Khan A, Ahmed Ali FA. Graphene oxide, an effective nanoadditive for a development of hollow fiber nanocomposite membrane with antifouling properties. ADVANCES IN POLYMER TECHNOLOGY 2018. [DOI: 10.1002/adv.21935] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Javed Alam
- King Abdullah Institute for Nanotechnology; King Saud University; Riyadh Saudi Arabia
| | - Arun Kumar Shukla
- King Abdullah Institute for Nanotechnology; King Saud University; Riyadh Saudi Arabia
| | - Mansour Alhoshan
- King Abdullah Institute for Nanotechnology; King Saud University; Riyadh Saudi Arabia
- Chemical Engineering Department; College of Engineering; King Saud University; Riyadh Saudi Arabia
| | | | | | - Aslam Khan
- King Abdullah Institute for Nanotechnology; King Saud University; Riyadh Saudi Arabia
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Jesswein I, Uebele S, Dieterich A, Keller S, Hirth T, Schiestel T. Influence of surface properties on the dip coating behavior of hollow fiber membranes. J Appl Polym Sci 2017. [DOI: 10.1002/app.46163] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Isabel Jesswein
- Institute of Interfacial Process Engineering and Plasma Technology IGVP; Stuttgart 70569 Germany
| | - Sarah Uebele
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB; Stuttgart 70569 Germany
| | - Alina Dieterich
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB; Stuttgart 70569 Germany
| | - Silke Keller
- Institute of Interfacial Process Engineering and Plasma Technology IGVP; Stuttgart 70569 Germany
| | - Thomas Hirth
- Karlsruhe Institute of Technology (KIT); Karlsruhe 76131 Germany
| | - Thomas Schiestel
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB; Stuttgart 70569 Germany
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Zhou Z, Fang LF, Wang SY, Matsuyama H. Improving bonding strength between a hydrophilic coating layer and poly(ethylene terephthalate) braid for preparing mechanically stable braid-reinforced hollow fiber membranes. J Appl Polym Sci 2017. [DOI: 10.1002/app.46104] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhuang Zhou
- Center for Membrane and Film Technology, Department of Chemical Science and Engineering; Kobe University, Rokkodaicho 1-1; Nada Kobe 657-8501 Japan
| | - Li-Feng Fang
- Center for Membrane and Film Technology, Department of Chemical Science and Engineering; Kobe University, Rokkodaicho 1-1; Nada Kobe 657-8501 Japan
| | - Sheng-Yao Wang
- Center for Membrane and Film Technology, Department of Chemical Science and Engineering; Kobe University, Rokkodaicho 1-1; Nada Kobe 657-8501 Japan
| | - Hideto Matsuyama
- Center for Membrane and Film Technology, Department of Chemical Science and Engineering; Kobe University, Rokkodaicho 1-1; Nada Kobe 657-8501 Japan
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Xia QC, Wang J, Wang X, Chen BZ, Guo JL, Jia TZ, Sun SP. A hydrophilicity gradient control mechanism for fabricating delamination-free dual-layer membranes. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.06.021] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Tsai HA, Wang TY, Huang SH, Hu CC, Hung WS, Lee KR, Lai JY. The preparation of polyamide/polyacrylonitrile thin film composite hollow fiber membranes for dehydration of ethanol mixtures. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.06.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Xu R, Feng Q, He Y, Yan F, Chen L, Zhao Y. Dual functionalized poly(vinylidene fluoride) membrane with acryloylmorpholine and argatroban to improve antifouling and hemocompatibility. J Biomed Mater Res A 2016; 105:178-188. [DOI: 10.1002/jbm.a.35892] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Revised: 08/17/2016] [Accepted: 08/30/2016] [Indexed: 12/26/2022]
Affiliation(s)
- Rui Xu
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Material Science and Engineering, Tianjin Polytechnic University; Tianjin 300387 China
| | - Qianqian Feng
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Material Science and Engineering, Tianjin Polytechnic University; Tianjin 300387 China
| | - Yang He
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Material Science and Engineering, Tianjin Polytechnic University; Tianjin 300387 China
| | - Fanyong Yan
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Environmental and Chemical Engineering, Tianjin Polytechnic University; Tianjin 300387 China
| | - Li Chen
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Material Science and Engineering, Tianjin Polytechnic University; Tianjin 300387 China
- School of Material Science and Engineering; Tianjin University of Technology; Tianjin 300384 China
| | - Yiping Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes; School of Material Science and Engineering, Tianjin Polytechnic University; Tianjin 300387 China
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