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Na C, Kwac LK, Kim HG, Chang JH. Effect of organoclay on the physical properties of colorless and transparent copoly(amide imide) nanocomposites. RSC Adv 2024; 14:9062-9071. [PMID: 38500626 PMCID: PMC10945375 DOI: 10.1039/d3ra08605d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 03/12/2024] [Indexed: 03/20/2024] Open
Abstract
Copoly(amic acid) was prepared using the diamine monomer N,N'-[2,2'-bis(trifluoromethyl)-4,4'-biphenylene]bis(4-aminobenzamide) (TFAB) and the anhydride monomers 4,4'-(hexafluoro-isopropylidene)diphthalic anhydride (6FDA) and 4,4'-biphthalic anhydride (BPA). Thereafter, a colorless and transparent copoly(amide imide) (Co-CPAI) film was synthesized through various heat treatments. Co-CPAI hybrid films with a TFAB : 6FDA : BPA molar ratio of 1 : 0.5 : 0.5 were subsequently fabricated using organically modified hectorite (STN) with various contents ranging from 0 to 7 wt% via the solution intercalation method. Finally, the thermomechanical properties, clay dispersion, and optical transmittance of the hybrid films were investigated. The results of wide-angle X-ray diffractometry and transmission electron microscopy demonstrated good dispersion at low clay loadings; however, clay agglomeration was observed above a certain critical STN content. At the critical STN content of 3 wt%, the clay was evenly distributed in the matrix with a nanoscale thickness of approximately 10 nm. Hybrid films containing 3 wt% STN showed excellent thermomechanical properties. Beyond this critical clay content, the physical properties of the films decreased because of the agglomeration of excess clay. Regardless of the clay content, however, the optical properties of the hybrid films remained constant, and their yellow indices, which ranged from 2 to 4, indicated excellent colorless transparency.
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Affiliation(s)
- Changyub Na
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
| | - Lee Ku Kwac
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
- Institute of Carbon Technology, Jeonju University Jeonju 55069 Korea
| | - Hong Gun Kim
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
- Institute of Carbon Technology, Jeonju University Jeonju 55069 Korea
| | - Jin-Hae Chang
- Institute of Carbon Technology, Jeonju University Jeonju 55069 Korea
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Kim AY, Lee SJ, Choi MY, Na C, Kwac LK, Kim HG, Chang JH. Colorless and transparent poly(amide imide) nanocomposites containing organically modified hectorite. RSC Adv 2023; 13:24423-24431. [PMID: 37583674 PMCID: PMC10424564 DOI: 10.1039/d3ra04587k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 08/02/2023] [Indexed: 08/17/2023] Open
Abstract
Polyamic acid (PAA) was synthesized using the diamine monomer N,N'-[2,2'-bis(trifluoromethyl)-4,4'-biphenylene]bis(4-aminobenzamide) and dianhydride monomer 4,4'-oxydiphthalic anhydride. Colorless and transparent poly(amide imide) (CPAI) hybrid films were prepared via multi-step thermal imidization of PAA in which various contents of nano-filler were dispersed. The CPAI hybrid films were prepared by dispersing organoclay STN, which was obtained by organically modifying hectorite, in CPAI by solution intercalation with various contents ranging from 1 to 7 wt%. The thermomechanical properties, morphologies, and optical transparencies of the obtained CPAI hybrid films were investigated based on the dispersed STN content, and the results were compared. Some of the clay in the CPAI hybrid film were agglomerated, which was observed using a transmission electron microscope; however, most clays were well-dispersed, with a nano-size of less than 10 nm. The best thermomechanical properties of the CPAI hybrid film were exhibited with an STN content of 3 wt%, but these properties decreased above the critical content. The coefficients of thermal expansion of all the hybrid films were below 20 ppm per °C regardless of the amount of STN, and the yellow index was 1-2 even when the STN content increased to 7 wt%.
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Affiliation(s)
- A Young Kim
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
| | - Seon Ju Lee
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
| | - Moon Young Choi
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
| | - Changyub Na
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
| | - Lee Ku Kwac
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
- Institute of Carbon Technology, Jeonju University Jeonju 55069 Korea
| | - Hong Gun Kim
- Graduate School of Carbon Convergence Engineering, Jeonju University Jeonju 55069 Korea
- Institute of Carbon Technology, Jeonju University Jeonju 55069 Korea
| | - Jin-Hae Chang
- Institute of Carbon Technology, Jeonju University Jeonju 55069 Korea
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Liu L, Liu S, Wang E, Su B. Hollow Fiber Membrane for Organic Solvent Nanofiltration: A Mini Review. MEMBRANES 2022; 12:membranes12100995. [PMID: 36295754 PMCID: PMC9607374 DOI: 10.3390/membranes12100995] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 06/03/2023]
Abstract
Organic solvents take up 80% of the total chemicals used in pharmaceutical and related industries, while their reuse rate is less than 50%. Traditional solvent treatment methods such as distillation and evaporation have many disadvantages such as high cost, environmental unfriendliness, and difficulty in recovering heat-sensitive, high-value molecules. Organic solvent nanofiltration (OSN) has been a prevalent research topic for the separation and purification of organic solvent systems since the beginning of this century with the benefits of no-phase change, high operational flexibility, low cost, as well as environmental friendliness. Especially, hollow fiber (HF) OSN membranes have gained a lot of attention due to their high packing density and easy scale-up as compared with flat-sheet OSN membranes. This paper critically reviewed the recent research progress in the preparation of HF OSN membranes with high performance, including different materials, preparation methods, and modification treatments. This paper also predicts the future direction of HF OSN membrane development.
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Affiliation(s)
- Liyang Liu
- Key Laboratory of Marine Chemistry Theory and Technology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China
- College of Chemistry & Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China
| | - Shaoxiao Liu
- Key Laboratory of Marine Chemistry Theory and Technology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China
- College of Chemistry & Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China
| | - Enlin Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China
- College of Chemistry & Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China
| | - Baowei Su
- Key Laboratory of Marine Chemistry Theory and Technology, Ocean University of China, Ministry of Education, 238 Songling Road, Qingdao 266100, China
- College of Chemistry & Chemical Engineering, Ocean University of China, 238 Songling Road, Qingdao 266100, China
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Kwon H, Park Y, Yang E, Bae TH. Graphene Oxide-Based Membranes Intercalated with an Aromatic Crosslinker for Low-Pressure Nanofiltration. MEMBRANES 2022; 12:966. [PMID: 36295725 PMCID: PMC9612350 DOI: 10.3390/membranes12100966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Graphene oxide (GO), a carbonaceous 2D nanomaterial, has received significant interest as a next-generation membrane building block. To fabricate high-performance membranes, an effective strategy involves stacking GO nanosheets in laminated structures, thereby creating unique nanochannel galleries. One outstanding merit of laminar GO membranes is that their permselectivity is readily tunable by tailoring the size of the nanochannels. Here, a high-performance GO-based nanofiltration membrane was developed by intercalating an aromatic crosslinker, α,α/-dichloro-p-xylene (DCX), between the layers in laminated GO nanosheets. Owing to the formation of strong covalent bonds between the crosslinker and the GO, the resulting GO laminate membrane exhibited outstanding structural stability. Furthermore, due to the precisely controlled and enlarged interlayer spacing distance of the developed DCX-intercalated GO membrane, it achieved an over two-fold enhancement in water permeability (11 ± 2 LMH bar-1) without sacrificing the rejection performance for divalent ions, contrary to the case with a pristine GO membrane.
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Affiliation(s)
- Hyuntak Kwon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Yongju Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Euntae Yang
- Department of Marine Environmental Engineering, College of Marine Science, Gyeongsang National University, Tongyeong 53064, Korea
| | - Tae-Hyun Bae
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Korea
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Veres T, Voniatis C, Molnár K, Nesztor D, Fehér D, Ferencz A, Gresits I, Thuróczy G, Márkus BG, Simon F, Nemes NM, García-Hernández M, Reiniger L, Horváth I, Máthé D, Szigeti K, Tombácz E, Jedlovszky-Hajdu A. An Implantable Magneto-Responsive Poly(aspartamide) Based Electrospun Scaffold for Hyperthermia Treatment. NANOMATERIALS 2022; 12:nano12091476. [PMID: 35564185 PMCID: PMC9101327 DOI: 10.3390/nano12091476] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/15/2022] [Accepted: 04/22/2022] [Indexed: 02/06/2023]
Abstract
When exposed to an alternating magnetic field, superparamagnetic nanoparticles can elicit the required hyperthermic effect while also being excellent magnetic resonance imaging (MRI) contrast agents. Their main drawback is that they diffuse out of the area of interest in one or two days, thus preventing a continuous application during the typical several-cycle multi-week treatment. To solve this issue, our aim was to synthesise an implantable, biodegradable membrane infused with magnetite that enabled long-term treatment while having adequate MRI contrast and hyperthermic capabilities. To immobilise the nanoparticles inside the scaffold, they were synthesised inside hydrogel fibres. First, polysuccinimide (PSI) fibres were produced by electrospinning and crosslinked, and then, magnetitc iron oxide nanoparticles (MIONs) were synthesised inside and in-between the fibres of the hydrogel membranes with the well-known co-precipitation method. The attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) investigation proved the success of the chemical synthesis and the presence of iron oxide, and the superconducting quantum interference device (SQUID) study revealed their superparamagnetic property. The magnetic hyperthermia efficiency of the samples was significant. The given alternating current (AC) magnetic field could induce a temperature rise of 5 °C (from 37 °C to 42 °C) in less than 2 min even for five quick heat-cool cycles or for five consecutive days without considerable heat generation loss in the samples. Short-term (1 day and 7 day) biocompatibility, biodegradability and MRI contrast capability were investigated in vivo on Wistar rats. The results showed excellent MRI contrast and minimal acute inflammation.
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Affiliation(s)
- Tamás Veres
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, 1089 Budapest, Hungary; (T.V.); (C.V.); (K.M.)
| | - Constantinos Voniatis
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, 1089 Budapest, Hungary; (T.V.); (C.V.); (K.M.)
- Department of Surgery, Transplantation and Gastroenterology, Semmelweis University, 1082 Budapest, Hungary
| | - Kristóf Molnár
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, 1089 Budapest, Hungary; (T.V.); (C.V.); (K.M.)
| | - Dániel Nesztor
- Department of Food Engineering, University of Szeged, 6725 Szeged, Hungary; (D.N.); (E.T.)
| | - Daniella Fehér
- Heart and Vascular Centre, Department of Surgical Research and Techniques, Semmelweis University, 1122 Budapest, Hungary; (D.F.); (A.F.)
| | - Andrea Ferencz
- Heart and Vascular Centre, Department of Surgical Research and Techniques, Semmelweis University, 1122 Budapest, Hungary; (D.F.); (A.F.)
| | - Iván Gresits
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary; (I.G.); (I.H.); (D.M.); (K.S.)
| | - György Thuróczy
- NRIRR “Frédéric Joliot-Curie” National Research Institute for Radiobiology and Radiohygiene, 1221 Budapest, Hungary;
| | - Bence Gábor Márkus
- Stavropoulos Center for Complex Quantum Matter, Department of Physics and Astronomy, University of Notre Dame, Notre Dame, IN 46556, USA;
- Institute of Physics, Budapest University of Technology and Economics, 1521 Budapest, Hungary;
- Wigner Research Centre for Physics Economics, 1121 Budapest, Hungary
| | - Ferenc Simon
- Institute of Physics, Budapest University of Technology and Economics, 1521 Budapest, Hungary;
- Wigner Research Centre for Physics Economics, 1121 Budapest, Hungary
| | - Norbert Marcell Nemes
- Grupo de Física de Materiales Complejos (GFMC), Departamento de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain; (N.M.N.); (M.G.-H.)
| | - Mar García-Hernández
- Grupo de Física de Materiales Complejos (GFMC), Departamento de Física de Materiales, Universidad Complutense de Madrid, 28040 Madrid, Spain; (N.M.N.); (M.G.-H.)
| | - Lilla Reiniger
- Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085 Budapest, Hungary;
| | - Ildikó Horváth
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary; (I.G.); (I.H.); (D.M.); (K.S.)
| | - Domokos Máthé
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary; (I.G.); (I.H.); (D.M.); (K.S.)
- Hungarian Center of Excellence for Molecular Medicine (HCEMM), In Vivo Imaging Advanced Core Facility, Semmelweis University Site, 1094 Budapest, Hungary
| | - Krisztián Szigeti
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary; (I.G.); (I.H.); (D.M.); (K.S.)
| | - Etelka Tombácz
- Department of Food Engineering, University of Szeged, 6725 Szeged, Hungary; (D.N.); (E.T.)
- Soós Ernő Water Technology Research and Development Center, University of Pannonia, 8800 Nagykanizsa, Hungary
| | - Angela Jedlovszky-Hajdu
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology, Semmelweis University, 1089 Budapest, Hungary; (T.V.); (C.V.); (K.M.)
- Correspondence:
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Polybenzimidazole Membrane Crosslinked with Epoxy-Containing Inorganic Networks for Organic Solvent Nanofiltration and Aqueous Nanofiltration under Extreme Basic Conditions. MEMBRANES 2022; 12:membranes12020140. [PMID: 35207063 PMCID: PMC8877178 DOI: 10.3390/membranes12020140] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/19/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023]
Abstract
In this study, a novel polybenzimidazole (PBI)-based organic solvent nanofiltration (OSN) membrane possessing excellent stability under high pH condition was developed. To improve the chemical stability, the pristine PBI membrane was crosslinked with a silane precursor containing an epoxy end group. In detail, hydrolysis and condensation reaction of methoxysilane in the 3-glycidyloxypropyl trimethoxysilane (GPTMS) yields organic–inorganic networks within the PBI membrane structure. At the same time, the epoxy end groups on the organosiloxane network (Si–O–Si) reacted with amine groups of PBI to complete the crosslinking. The resulting crosslinked PBI membrane exhibited a good stability upon exposure to organic solvents and was not decomposed even in basic solution (pH 13). Our membrane showed an ethanol permeance of 27.74 LMHbar−1 together with a high eosin Y rejection of >90% under 10 bar operation pressure at room temperature. Furthermore, our PBI membrane was found to be operational even under an extremely basic condition, although the effective pore size was slightly enlarged due to the pore swelling effect. The results suggest that our membrane is a promising candidate for OSN application under basic conditions.
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New Membrane-Forming Aromatic Co-Poly(amide-imide)s: Influence of the Chemical Structure on the Morphological, Thermal and Transport Properties. MEMBRANES 2022; 12:membranes12010091. [PMID: 35054617 PMCID: PMC8781751 DOI: 10.3390/membranes12010091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 11/17/2022]
Abstract
Polymer film membranes are used to solve specific separation problems that dictate structural requirements. Structural and morphological parameters of film membranes based on glassy polyheteroarylenes can be controlled in the process of preparation from solutions that opens up prospects for obtaining structured membranes required for targeted separation. In the case of aromatic poly(amide-imide)s, the possibility of controlling film formation and structure virtually has not been studied. In the present work, a series of homologous co-poly(amide-imide)s differing in the number of repeating units with carboxyl-substituted aromatic fragments was synthesized by polycondensation. Comparative analysis of the processes of formation of membranes with different morphologies based on these polymers under equal conditions was performed. New information was obtained about the influence of the amounts of carboxyl groups and the residual solvent on structural properties of asymmetric membranes. The influence of these factors on transport properties of dense membranes under pervaporation conditions was studied. It was demonstrated that in the case of carboxyl-containing poly(amide-imide)s, the domains formed during film preparation had a significant effect on membrane properties.
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Xue Q, Zhang K. MXene nanocomposite nanofiltration membrane for low carbon and long-lasting desalination. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119808] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Rahmati M, Rajabzadeh S, Abdelrasoul A, Kawabata Y, Yoshioka T, Matsuyama H, Mohammadi T. Molecular dynamics simulation for investigating and assessing reaction conditions between carboxylated polyethersulfone and polyethyleneimine. J Appl Polym Sci 2021. [DOI: 10.1002/app.51304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mahmoud Rahmati
- Department of Chemical Engineering Graduate University of Advanced Technology Kerman Iran
| | - Saeid Rajabzadeh
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering Kobe University Kobe Japan
| | - Amira Abdelrasoul
- Department of Chemical and Biological Engineering University of Saskatchewan Saskatoon Canada
| | - Yuki Kawabata
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering Kobe University Kobe Japan
| | - Tomohisa Yoshioka
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering Kobe University Kobe Japan
| | - Hideto Matsuyama
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering Kobe University Kobe Japan
| | - Toraj Mohammadi
- Center of Excellence for Membrane Science and Technology, Department of Chemical, Petroleum and Gas Engineering Iran University of Science and Technology (IUST) Tehran Iran
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Electrostatic-modulated interfacial polymerization toward ultra-permselective nanofiltration membranes. iScience 2021; 24:102369. [PMID: 33898951 PMCID: PMC8059057 DOI: 10.1016/j.isci.2021.102369] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/08/2021] [Accepted: 03/23/2021] [Indexed: 01/31/2023] Open
Abstract
Interfacial polymerization (IP) is a platform technology for ultrathin membranes. However, most efforts in regulating the IP process have been focused on short-range H-bond interaction, often leading to low-permselective membranes. Herein, we report an electrostatic-modulated interfacial polymerization (eIP) via supercharged phosphate-rich substrates toward ultra-permselective polyamide membranes. Phytate, a natural strongly charged organophosphate, confers high-density long-range electrostatic attraction to aqueous monomers and affords tunable charge density by flexible metal-organophosphate coordination. The electrostatic attraction spatially enriches amine monomers and temporally decelerates their diffusion into organic phase to be polymerized with acyl chloride monomers, triggering membrane sealing and inhibiting membrane growth, thus generating polyamide membranes with reduced thickness and enhanced cross-linking. The optimized nearly 10-nm-thick and highly cross-linked polyamide membrane displays superior water permeance and ionic selectivity. This eIP approach is applicable to the majority of conventional IP processes and can be extended to fabricate a variety of advanced membranes from polymers, supermolecules, and organic framework materials. Electrostatic-modulated interfacial polymerization is proposed for the first time Electrostatic attraction regulates the spatial-temporal distribution of amine monomers Monomer regulation leads to reduced thickness and enhanced cross-linking of membrane Ultrathin and highly cross-linked polyamide membrane displays superior permselectivity
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Goh KS, Chen Y, Chong JY, Bae TH, Wang R. Thin film composite hollow fibre membrane for pharmaceutical concentration and solvent recovery. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.119008] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ramesh P, Xu WL, Sorci M, Trant C, Lee S, Kilduff J, Yu M, Belfort G. Organic solvent filtration by brush membranes: Permeability, selectivity and fouling correlate with degree of SET-LRP grafting. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118699] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang ZY, Li S, Xu S, Tian L, Su B, Han L, Mandal B. Fundamental understanding on the preparation conditions of high-performance polyimide-based hollow fiber membranes for organic solvent nanofiltration (OSN). Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117600] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Jeong TY, Lee YD, Ban Y, Lee J, Lee H, Kwon YK. Polyimide composite separator containing surface-modified hollow mesoporous silica nanospheres for lithium-ion battery application. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123288] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Mishra NK, Patil N, Long C, Yi S, Hopkinson D, Grunlan JC, Wilhite BA. Enhancing H2-permselectivity of high-flux hollow fiber membrane via in-situ layer-by-layer surface treatment. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Xu S, Wang ZY, Li S, Tian L, Su B. Fabrication of polyimide-based hollow fiber membrane by synergetic covalent-crosslinking strategy for organic solvent nanofiltration (OSN) application. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116751] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Aramid nanofiber and modified ZIF-8 constructed porous nanocomposite membrane for organic solvent nanofiltration. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118002] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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In-situ coating TiO 2 surface by plant-inspired tannic acid for fabrication of thin film nanocomposite nanofiltration membranes toward enhanced separation and antibacterial performance. J Colloid Interface Sci 2020; 572:114-121. [PMID: 32234587 DOI: 10.1016/j.jcis.2020.03.087] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 11/21/2022]
Abstract
A major issue hindering development of thin film nanocomposite (TFN) nanofiltration (NF) membrane is the interfacial defects induced by nanomaterial aggregation in top layer. Although various nanomaterials surface modification strategies have been developed to eliminate the interfacial defects, they usually involve extra modification steps and complex post-treatments. Inspired by the substrate-independent coating ability of tannic acid (TA) and the fact that the phenolic hydroxyl groups in TA can react with acyl chloride group in trimesoyl chloride, a TA coating solution containing TiO2 nanoparticles was used as an aqueous phase of interfacial polymerization to prepare interfacial modified TFN NF membranes in this study. Surface modification of TiO2 nanoparticles and interfacial polymerization can be carried out in a single step without any extra pre-modification step. It was found that the TA coating on TiO2 nanoparticles surface could decrease TiO2 aggregations and enhance interfacial compatibility between TiO2 and polyester matrix. The TFN NF membrane prepared at a TiO2 loading of 0.020 wt% exhibited a pure water flux of 28.8 L m-2 h-1 (284% higher than that of the controlled TFC membrane), and possessed enhanced NaCl and Na2SO4 rejections of 57.9% and 94.6%, respectively, breaking through the trade-off between permeability and selectivity.
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Goh KS, Chong JY, Chen Y, Fang W, Bae TH, Wang R. Thin-film composite hollow fibre membrane for low pressure organic solvent nanofiltration. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2019.117760] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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21
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A highly stable PBI solvent resistant nanofiltration membrane prepared via versatile and simple crosslinking process. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.077] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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WS2 deposition on cross-linked polyacrylonitrile with synergistic transformation to yield organic solvent nanofiltration membranes. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117219] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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23
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Preparation of thin film composite nano-filtration membranes for brackish water softening based on the reaction between functionalized UF membranes and polyethyleneimine. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117207] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Novel designed TFC membrane based on host-guest interaction for organic solvent nanofiltration (OSN). J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117227] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Modulating hydrophobicity of composite polyamide membranes to enhance the organic solvent nanofiltration. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.04.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Jang H, Johnson JR, Ma Y, Mathias R, Bhandari DA, Lively RP. Torlon® hollow fiber membranes for organic solvent reverse osmosis separation of complex aromatic hydrocarbon mixtures. AIChE J 2019. [DOI: 10.1002/aic.16757] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hye‐Youn Jang
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology Atlanta Georgia
| | - J. R. Johnson
- Corporate Strategic ResearchExxonMobil Research & Engineering Annandale New Jersey
| | - Yao Ma
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology Atlanta Georgia
| | - Ronita Mathias
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology Atlanta Georgia
| | - Dhaval A. Bhandari
- Corporate Strategic ResearchExxonMobil Research & Engineering Annandale New Jersey
| | - Ryan P. Lively
- School of Chemical & Biomolecular EngineeringGeorgia Institute of Technology Atlanta Georgia
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27
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Abstract
Abstract
The solvent finding step has always been a time-consuming job in chemical-involved processes. The source of difficulty mainly comes from the trial-and-errors, as a repetitive process of chosing solvents and mixing them in different proportions. Computers are good at doing repetitive processes; however, they can only deal with numerical values, rather than qulitative scales. Numerification of qualitative parameters (like solubility) has already been introduced. The most recent one is the Hansen solubility parameters (HSPs). Using the HSPs could provide a solvent or solvent-mixture. In our previous study, we introduced a computer-aided model and a software to find a solvent mixture. In this study, we have used the computer-aided solvent selection model to find some solvent mixtures for polyamide 11, a biobased polymer which has attracted enormous attention recently. Using this numerical model significantly diminished the time of solvent development experimentation by decreasing the possible/necessary trials.
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28
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Abadikhah H, Kalali EN, Behzadi S, Khan SA, Xu X, Shabestari ME, Agathopoulos S. High flux thin film nanocomposite membrane incorporated with functionalized TiO2@reduced graphene oxide nanohybrids for organic solvent nanofiltration. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.04.022] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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29
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Li Y, Xue J, Zhang X, Cao B, Li P. Formation of Macrovoid-Free PMDA-MDA Polyimide Membranes Using a Gelation/Non-Solvent-Induced Phase Separation Method for Organic Solvent Nanofiltration. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00623] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuan Li
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jingjing Xue
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xu Zhang
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bing Cao
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Pei Li
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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30
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Control of Conductive and Mechanical Performances of Poly(Amide-Imide) Composite Films Utilizing Synergistic Effect of Polyaniline and Multi-Walled Carbon Nanotube. POLYM ENG SCI 2018. [DOI: 10.1002/pen.25032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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31
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32
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Zhao W, Liu H, Meng N, Jian M, Wang H, Zhang X. Graphene oxide incorporated thin film nanocomposite membrane at low concentration monomers. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.08.047] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Davood Abadi Farahani MH, Ma D, Nazemizadeh Ardakani P. Nanocomposite membranes for organic solvent nanofiltration. SEPARATION & PURIFICATION REVIEWS 2018. [DOI: 10.1080/15422119.2018.1526805] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Dangchen Ma
- Department of Chemical & Biomolecular Engineering, National University of Singapore, Singapore, Singapore
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34
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The preparation of polyelectrolyte/hydrolyzed polyacrylonitrile composite hollow fiber membrane for pervaporation. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.06.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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35
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Duong PH, Anjum DH, Peinemann KV, Nunes SP. Thin porphyrin composite membranes with enhanced organic solvent transport. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.04.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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36
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High solvent-resistant and integrally crosslinked polyimide-based composite membranes for organic solvent nanofiltration. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.06.048] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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37
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Xu SJ, Shen Q, Chen GE, Xu ZL. Novel β-CD@ZIF-8 Nanoparticles-Doped Poly( m-phenylene isophthalamide) (PMIA) Thin-Film Nanocomposite (TFN) Membrane for Organic Solvent Nanofiltration (OSN). ACS OMEGA 2018; 3:11770-11787. [PMID: 30320272 PMCID: PMC6173514 DOI: 10.1021/acsomega.8b01808] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 09/14/2018] [Indexed: 05/25/2023]
Abstract
Organic solvent nanofiltration (OSN) membranes are always troubled by the "trade-off" effect between solvent flux and solute rejection. Hence, a rapid, convenient, and effective way to synthesize novel β-cyclodextrin-enhanced zeolite imidazole framework-8 (β-CD@ZIF-8) nanoparticles was first proposed and the nanoparticles were doped into both selective layer and poly(m-phenylene isophthalamide) support for fabricating thin-film nanocomposite membranes. Transmission/scanning electron microscopy images and X-ray photoelectron spectroscopy results demonstrate the successful synthesis of β-CD@ZIF-8. Atomic force microscopy images illustrate the more rougher surface compared to the pristine membrane, while the pure acetone flux reached 62.3 ± 2.3 L m-2 h-1, and Rose Bengal rejection achieved 96.6 ± 1.8 and 94.5 ± 0.5% in methanol (MeOH) and tetrahydrofuran at 0.6 MPa, respectively, when the dosage was 0.05% (w/v). The molecular weight cutoff around 574 Da of PPA2505 containing β-CD@ZIF-8 in both support and selective layers shows the optimum properties and outstanding OSN performances in erythromycin concentration and purification in MeOH and butyl acetate. Additionally, polyimide nanofiber and the formed net structure may offer a potential way to fabricate "ultrathin" film in the OSN industry.
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Affiliation(s)
- Sun-Jie Xu
- State Key Laboratory
of Chemical Engineering, Membrane Science and Engineering R&D
Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qian Shen
- State Key Laboratory
of Chemical Engineering, Membrane Science and Engineering R&D
Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Gui-E Chen
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China
| | - Zhen-Liang Xu
- State Key Laboratory
of Chemical Engineering, Membrane Science and Engineering R&D
Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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38
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Tham HM, Japip S, Hua D, Chung TS. Green Layer-by-Layer Method for the Preparation of Polyacrylonitrile-Supported Zinc Benzene-1,4-dicarboxylic Acid Membranes. CHEMSUSCHEM 2018; 11:2612-2619. [PMID: 29905033 DOI: 10.1002/cssc.201800740] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 06/14/2018] [Indexed: 06/08/2023]
Abstract
Ultrafiltration-level polyacrylonitrile (PAN) flat sheet membranes were chemically modified through cross-linking and hydrolysis to provide a suitable surface for the growth of a selective layer composed of a Zn benzene-1,4-dicarboxylic acid (Zn(BDC)) metal-organic framework (MOF). Unlike typical membrane modification methods or conventional MOF synthesis procedures, deionized (DI) water was the only solvent used for each of the modification steps. To better understand the layer-by-layer MOF growth process, several MOF growth conditions were also studied, including the effects of solution concentration, growth temperature, membrane immersion time and the number of layers. Subsequently, organic solvent nanofiltration (OSN) was used to test the effectiveness of the modifications and compare the performances of the fabricated membranes. With the appropriate combination of the MOF growth conditions, the layer-by-layer method was used to produce an OSN membrane with an isopropanol permeance of 2.39 L m-2 h-1 bar-1 and an 86 % rejection of the dye Brilliant Blue R (Mw 825.97 g mol-1 ).
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Affiliation(s)
- Hui Min Tham
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, 117456, Singapore
- Department of Chemical&Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Susilo Japip
- Department of Chemical&Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Dan Hua
- Department of Chemical&Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
| | - Tai-Shung Chung
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore, 117456, Singapore
- Department of Chemical&Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
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39
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40
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New promising polymer for organic solvent nanofiltration: Oxidized poly (arylene sulfide sulfone). J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.036] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Yuan Z, Wu X, Jiang Y, Li Y, Huang J, Hao L, Zhang J, Wang J. Carbon dots-incorporated composite membrane towards enhanced organic solvent nanofiltration performance. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.11.051] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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42
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Lim SK, Goh K, Bae TH, Wang R. Polymer-based membranes for solvent-resistant nanofiltration: A review. Chin J Chem Eng 2017. [DOI: 10.1016/j.cjche.2017.05.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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43
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From ultrafiltration to nanofiltration: Hydrazine cross-linked polyacrylonitrile hollow fiber membranes for organic solvent nanofiltration. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.08.024] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Golzar K, Modarress H, Amjad-Iranagh S. Separation of gases by using pristine, composite and nanocomposite polymeric membranes: A molecular dynamics simulation study. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.06.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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45
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Marchetti P, Peeva L, Livingston A. The Selectivity Challenge in Organic Solvent Nanofiltration: Membrane and Process Solutions. Annu Rev Chem Biomol Eng 2017; 8:473-497. [PMID: 28511021 DOI: 10.1146/annurev-chembioeng-060816-101325] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Recent development of organic solvent nanofiltration (OSN) materials has been overwhelmingly directed toward tight membranes with ultrahigh permeance. However, emerging research into OSN applications is suggesting that improved separation selectivity is at least as important as further increases in membrane permeance. Membrane solutions are being proposed to improve selectivity, mostly by exploiting solute/solvent/membrane interactions and by fabricating tailored membranes. Because achieving a perfect separation with a single membrane stage is difficult, process engineering solutions, such as membrane cascades, are also being advocated. Here we review these approaches to the selectivity challenge, and to clarify our analysis, we propose a selectivity figure of merit that is based on the permselectivity between the two solutes undergoing separation as well as the ratio of their molecular weights.
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Affiliation(s)
- Patrizia Marchetti
- Department of Chemical Engineering, Imperial College London, SW7 2AZ London, United Kingdom; , ,
| | - Ludmila Peeva
- Department of Chemical Engineering, Imperial College London, SW7 2AZ London, United Kingdom; , ,
| | - Andrew Livingston
- Department of Chemical Engineering, Imperial College London, SW7 2AZ London, United Kingdom; , ,
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46
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Xu YC, Tang YP, Liu LF, Guo ZH, Shao L. Nanocomposite organic solvent nanofiltration membranes by a highly-efficient mussel-inspired co-deposition strategy. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2016.12.026] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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47
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Hai Y, Zhang J, Shi C, Zhou A, Bian C, Li W. Thin film composite nanofiltration membrane prepared by the interfacial polymerization of 1,2,4,5-benzene tetracarbonyl chloride on the mixed amines cross-linked poly(ether imide) support. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2016.07.050] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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48
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Guo H, Ma Y, Qin Z, Gu Z, Cui S, Zhang G. One-Step Transformation from Hierarchical-Structured Superhydrophilic NF Membrane into Superhydrophobic OSN Membrane with Improved Antifouling Effect. ACS APPLIED MATERIALS & INTERFACES 2016; 8:23379-23388. [PMID: 27537337 DOI: 10.1021/acsami.6b07106] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The hierarchical-structured superhydrophilic poly(ethylenimine)/poly(acrylic acid) (PEI/PAA)calcium silicate hydrate (CSH) multilayered membranes (PEI/PAA-CSH)n were prepared as aqueous nanofiltration (NF) membrane, and then they were transformed into superhydrophobic organic solvent nanofiltration (OSN) membranes by one-step modification of trimethylperfluorinatedsilane (PFTS). Investigation on surface structures and properties of these multilayered membranes (PEI/PAA-CSH)n indicated that the hierarchical-structured (PEI/PAA-CSH)n multilayered membrane produced by in situ incorporation of CSH aggregates into PEI/PAA multilayers facilitated its one-step transformation from superhydrophilicity into superhydrophobicity. Both of the superwetting membranes showed better nanofiltration performances for retention of dyes of water and ethanol solution, respectively. Moreover, the long-term performance and antifouling behaviors, investigated by retention of methyl blue (MB), bovine serum albumin (BSA), and humic acid (HA) aqueous water solution and nonaqueous ethanol solution indicated that both of the superhydrophilic and superhydrophobic membrane showed higher stability and excellent antifouling property.
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Affiliation(s)
- Hongxia Guo
- College of Materials Science and Engineering, Beijing University of Technology , Beijing 100124, PR China
- Beijing Key Laboratory for Green Catalysis and Separation , Beijing 100124, PR China
| | - Yiwen Ma
- College of Materials Science and Engineering, Beijing University of Technology , Beijing 100124, PR China
| | - Zhenping Qin
- College of Environmental and Energy Engineering, Beijing University of Technology , Beijing 100124, PR China
- Beijing Key Laboratory for Green Catalysis and Separation , Beijing 100124, PR China
| | - Zhaoxiang Gu
- College of Materials Science and Engineering, Beijing University of Technology , Beijing 100124, PR China
| | - Suping Cui
- College of Materials Science and Engineering, Beijing University of Technology , Beijing 100124, PR China
| | - Guojun Zhang
- College of Environmental and Energy Engineering, Beijing University of Technology , Beijing 100124, PR China
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