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Yu H, Guan J, Chen Y, Sun Y, Zhou S, Zheng J, Zhang Q, Li S, Zhang S. Large-Area Soluble Covalent Organic Framework Oligomer Coating for Organic Solution Nanofiltration Membranes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305613. [PMID: 37712119 DOI: 10.1002/smll.202305613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Indexed: 09/16/2023]
Abstract
Covalent organic frameworks (COFs) are a family of engaging membrane materials for molecular separation, which remain challenging to fabricate in the form of thin-film composite membranes due to slow crystal growth and insoluble powder. Here, an additive approach is presented to construct COF-based thin-film composite membranes in 10 min via COF oligomer coating onto poly(ether ether ketone) (PEEK)ultrafiltration membranes. By the virtue of ultra-thin liquid phase and liquid-solid interface-confined assembly, the COF oligomers are fast stacked up and grow along the interface with the solvent evaporation. Benefiting from the low out-plane resistance of COFs, COF@PEEK composite membranes exhibit high solvent permeances in a negative correlation with solvent viscosity. The well-defined pore structures enable high molecular sieving ability (Mw = 300 g mol-1 ). Besides, the COF@PEEK composite membranes possess excellent mechanical integrities and steadily operate for over 150 h in the condition of high-pressure cross flow. This work not only exemplifies the high-efficiency and scale-up preparation of COF-based thin-film composite membranes but also provides a new strategy for COF membrane processing.
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Affiliation(s)
- Huiting Yu
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Jiayu Guan
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yaohan Chen
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Yuxuan Sun
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Shengyang Zhou
- Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jifu Zheng
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Qifeng Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Shenghai Li
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Suobo Zhang
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
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Akbar Heidari A, Mahdavi H. Recent Advances in the Support Layer, Interlayer and Active Layer of TFC and TFN Organic Solvent Nanofiltration (OSN) Membranes: A Review. CHEM REC 2023:e202300189. [PMID: 37642266 DOI: 10.1002/tcr.202300189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/28/2023] [Indexed: 08/31/2023]
Abstract
Although separation of solutes from organic solutions is considered a challenging process, it is inevitable in various chemical, petrochemical and pharmaceutical industries. OSN membranes are the heart of OSN technology that are widely utilized to separate various solutes and contaminants from organic solvents, which is now considered an emerging field. Hence, numerous studies have been attracted to this field to manufacture novel membranes with outstanding properties. Thin-film composite (TFC) and nanocomposite (TFN) membranes are two different classes of membranes that have been recently utilized for this purpose. TFC and TFN membranes are made up of similar layers, and the difference is the use of various nanoparticles in TFN membranes, which are classified into two types of porous and nonporous ones, for enhancing the permeate flux. This study aims to review recent advances in TFC and TFN membranes fabricated for organic solvent nanofiltration (OSN) applications. Here, we will first study the materials used to fabricate the support layer, not only the membranes which are not stable in organic solvents and require to be cross-linked, but also those which are inherently stable in harsh media and do not need any cross-linking step, and all of their advantages and disadvantages. Then, we will study the effects of fabricating different interlayers on the performance of the membranes, and the mechanisms of introducing an interlayer in the regulation of the PA structure. At the final step, we will study the type of monomers utilized for the fabrication of the active layer, the effect of surfactants in reducing the tension between the monomers and the membrane surface, and the type of nanoparticles used in the active layer of TFN membranes and their effects in enhancing the membrane separation performance.
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Affiliation(s)
- Ali Akbar Heidari
- School of Chemistry, College of Science, University of Tehran, 1417614411, Tehran, Iran E-mail: addresses
| | - Hossein Mahdavi
- School of Chemistry, College of Science, University of Tehran, 1417614411, Tehran, Iran E-mail: addresses
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3
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Tehrani SF, Bharadwaj P, Leblond Chain J, Roullin VG. Purification processes of polymeric nanoparticles: How to improve their clinical translation? J Control Release 2023; 360:591-612. [PMID: 37422123 DOI: 10.1016/j.jconrel.2023.06.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 06/05/2023] [Accepted: 06/28/2023] [Indexed: 07/10/2023]
Abstract
Polymeric nanoparticles, as revolutionary nanomedicines, have offered a new class of diagnostic and therapeutic solutions for a multitude of diseases. With its immense potential, the world witnesses the new age of nanotechnology after the COVID-19 vaccines were developed based on nanotechnology. Even though there are countless benchtop research studies in the nanotechnology world, their integration into commercially available technologies is still restricted. The post-pandemic world demands a surge of research in the domain, which leaves us with the fundamental question: why is the clinical translation of therapeutic nanoparticles so restricted? Complications in nanomedicine purification, among other things, are to blame for the lack of transference. Polymeric nanoparticles, owing to their ease of manufacture, biocompatibility, and enhanced efficiency, are one of the more explored domains in organic-based nanomedicines. Purification of nanoparticles can be challenging and necessitates tailoring the available methods in accordance with the polymeric nanoparticle and impurities involved. Though a number of techniques have been described, there are no available guidelines that help in selecting the method to better suit our requirements. We encountered this difficulty while compiling articles for this review and looking for methods to purify polymeric nanoparticles. The currently accessible bibliography for purification techniques only provides approaches for a specific type of nanomaterial or sometimes even procedures for bulk materials, that are not fully relevant to nanoparticles. In our research, we tried to summarize the available purification techniques using the approach of A.F. Armington. We divided the purification systems into two major classes, namely: phase separation-based techniques (based on the physical differences between the phases) and matter exchange-based techniques (centered on physicochemical induced transfer of materials and compounds). The phase separation methods are based on either using nanoparticle size differences to retain them on a physical barrier (filtration techniques) or using their densities to segregate them (centrifugation techniques). The matter exchange separation methods rely on either transferring the molecules or impurities across a barrier using simple physicochemical phenomena, like the concentration gradients (dialysis method) or partition coefficients (extraction technique). After describing the methods in detail, we highlight their advantages and limitations, mainly focusing on preformed polymer-based nanoparticles. Tailoring a purification strategy takes into account the nanoparticle structure and its integrity, the method selected should be suited for preserving the integrity of the particles, in addition to conforming to the economical, material and productivity considerations. In the meantime, we advocate the use of a harmonized international regulatory framework to define the adequate physicochemical and biological characterization of nanomedicines. An appropriate purification strategy serves as the backbone to achieving desired characteristics, in addition to reducing variability. As a result, the present review aspires to serve as a comprehensive guide for researchers, who are new to the domain, as well as a synopsis of purification strategies and analytical characterization methods used in preclinical studies.
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Affiliation(s)
- Soudeh F Tehrani
- Laboratoire de Nanotechnologies Pharmaceutiques, Faculté de pharmacie, Université de Montréal, C.P. 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canada
| | - Priyanshu Bharadwaj
- Laboratoire de Nanotechnologies Pharmaceutiques, Faculté de pharmacie, Université de Montréal, C.P. 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canada
| | | | - V Gaëlle Roullin
- Laboratoire de Nanotechnologies Pharmaceutiques, Faculté de pharmacie, Université de Montréal, C.P. 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canada.
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4
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Basko AV, Pochivalov KV, Yurov MY, Lebedeva TN, Yushkin AA, Volkov AV. Preparation of thermostable polypropylene membranes with a controlled structure by nonsolvent thermally induced phase separation. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2101376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | | | - Mikhail Yurevich Yurov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia
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5
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Zhang X, Li T, Wang Z, Wang J, Zhao S. Polar aprotic solvent-resistant nanofiltration membranes generated by flexible-chain binding interfacial polymerization onto PTFE substrate. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2022.121294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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6
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Ma K, Li X, Xia X, Chen Y, Luan Z, Chu H, Geng B, Yan M. Fluorinated solvent resistant nanofiltration membrane prepared by alkane / ionic liquid interfacial polymerization with excellent solvent resistance. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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7
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Won GY, Park A, Yoo Y, Park YI, Lee JH, Kim IC, Cho YH, Park H. Improving the Separation Properties of Polybenzimidazole Membranes by Adding Acetonitrile for Organic Solvent Nanofiltration. MEMBRANES 2023; 13:104. [PMID: 36676911 PMCID: PMC9864663 DOI: 10.3390/membranes13010104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
In research on membranes, the addition of co-solvents to the polymer dope solution is a common method for tuning the morphology and separation performance. For organic solvent nanofiltration (OSN) applications, we synthesized polybenzimidazole (PBI) membranes with high separation properties and stability by adding acetonitrile (MeCN) to the dope solution, followed by crosslinking with dibromo-p-xylene. Accordingly, changes in the membrane structure and separation properties were investigated when MeCN was added. PBI/MeCN membranes with a dense and thick active layer and narrow finger-like macrovoids exhibited superior rejection properties in the ethanol solution compared with the pristine PBI membrane. After crosslinking, they displayed superior rejection properties (96.56% rejection of 366-g/mol polypropylene glycol). In addition, the membranes demonstrated stable permeances for various organic solvents, including acetone, methanol, ethanol, toluene, and isopropyl alcohol. Furthermore, to evaluate the feasibility of the modified PBI OSN membranes, ecamsule, a chemical product in the fine chemical industry, was recovered. Correspondingly, the efficient recovery of ecamsule from a toluene/methanol solution using the OSN process with PBI/MeCN membranes demonstrated their applicability in many fine chemical industries.
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Affiliation(s)
- Ga Yeon Won
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ahrumi Park
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Youngmin Yoo
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - You-In Park
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Jung-Hyun Lee
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - In-Chul Kim
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
| | - Young Hoon Cho
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department of Advanced Materials and Chemical Engineering, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Hosik Park
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Republic of Korea
- Department of Advanced Materials and Chemical Engineering, University of Science and Technology, Daejeon 34113, Republic of Korea
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8
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Improvement in Acid Resistance of Polyimide Membranes: A Sustainable Cross-Linking Approach via Green-Solvent-Based Fenton Reaction. Polymers (Basel) 2023; 15:polym15020264. [PMID: 36679144 PMCID: PMC9861299 DOI: 10.3390/polym15020264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/22/2022] [Accepted: 01/01/2023] [Indexed: 01/06/2023] Open
Abstract
In this study, we present a facile surface modification method using green solvents for a commercial polyimide (PI) nanofiltration membrane to exhibit good acid stability. To enhance acid stability, the PI organic solvent nanofiltration membrane was modified using Fenton's reaction, an oxidative cross-linking process, using environmentally friendly solvents: water and ethanol. The surface properties of the pristine and modified PI membranes were investigated and compared using various analytical tools. We studied the surface morphology using scanning electron microscopy, performed elemental analysis using X-ray photoelectron spectroscopy, investigated chemical bonds using attenuated total reflectance-Fourier transform infrared spectroscopy, and studied thermal stability using thermogravimetric analysis. The acid resistances of the pristine and modified membranes were confirmed through performance tests. The pristine PI nanofiltration membrane exposed to a 50 w/v% sulfuric acid for 4 h showed an increase in the normalized water flux to 205% and a decrease in the MgSO4 normalized rejection to 44%, revealing damage to the membrane. The membrane modified by the Fenton reaction exhibited a decline in flux and improved rejection, which are typical performance changes after surface modification. However, the Fenton-modified membrane exposed to 50 w/v% sulfuric acid for 4 h showed a flux increase of 7% and a rejection increase of 4%, indicating improved acid resistance. Furthermore, the Fenton post-treatment enhanced the thermal stability and organic solvent resistance of the PI membrane. This study shows that the acid resistance of PI membranes can be successfully improved by a novel and facile Fenton reaction using green solvents.
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9
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Effective regulating interfacial polymerization process of OSN membrane via in-situ constructed nano-porous interlayer of 2D TpHz covalent organic frameworks. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2022.121101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Ali S, Shah IA, Ihsanullah I, Feng X. Nanocomposite membranes for organic solvent nanofiltration: Recent advances, challenges, and prospects. CHEMOSPHERE 2022; 308:136329. [PMID: 36087722 DOI: 10.1016/j.chemosphere.2022.136329] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/27/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Organic solvent nanofiltration (OSN) is an emerging technology for the separation of organic solvents that are relevant to the petrochemical, pharmaceutical, food and fine chemical industries. The separation performance of OSN membranes has continued to push the boundary up through advanced membrane fabrication techniques and novel materials for fabricating the membranes. Despite the many advantages, OSN membranes still face such challenges as low solvent permeability and durability in harsh organic solvent conditions. To overcome these limitations, attempts have been made to incorporate nanomaterial fillers into OSN membranes to improve their overall performance. This review analyzes the potential and use of nanomaterials for OSN membranes, including covalent organic frameworks (COFs), metal-organic frameworks (MOFs), metal oxides (MOs) and carbon-based materials (CBMs). Recent advances in the state-of-the-art nano-based OSN membranes, in the form of thin-film nanocomposite (TFN) membranes and mixed matrix membranes (MMMs), are reviewed. Moreover, the separation mechanisms of OSN with nano-based membranes are discussed. The challenges faced by these OSN membranes are also elaborated, and recommendations for further research in this field are provided.
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Affiliation(s)
- Sharafat Ali
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada
| | - Izaz Ali Shah
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, Beijing, 100875, China
| | - Ihsanullah Ihsanullah
- Center for Environment and Water, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Xianshe Feng
- Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON, N2L 3G1, Canada.
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Gan F, Jiang S, Zhou J, Wang J, Wen J, Mo J, Han S, Fan L, Yi N, Wu Y. Architecting dual coordination interactions in polyimide for constructing structurally controllable high-performance nanofiltration membranes. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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12
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Li H, Li X, Ouyang G, Li L, Zhong Z, Cai M, Li W, Huang W. Tannic acid/Fe3+ interlayer for preparation of high-permeability polyetherimide organic solvent nanofiltration membranes for organic solvent separation. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Beshahwored SS, Huang YH, Abdi ZG, Hu CC, Chung TS. Polybenzimidazole (PBI) membranes cross-linked with various cross-linkers and impregnated with 4-sulfocalix [4]arene (SCA4) for organic solvent nanofiltration (OSN). J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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14
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Zheng D, Hua D, Cheng X, Pan J, Ibrahim A, Hua H, Zhang P, Cha X, Xu K, Zhan G. Polyamide Composite Membranes for Enhanced
OSN
Performance by Metal Ions Assisted Interfacial Polymerization Method. AIChE J 2022. [DOI: 10.1002/aic.17896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dayuan Zheng
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Dan Hua
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Xi Cheng
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Junyang Pan
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Abdul‐Rauf Ibrahim
- Department of Mechanical Engineering, Faculty of Engineering and Built Environment Tamale Technical University Education Ridge Avenue, Sagnarigu District Tamale Ghana
| | - Haiming Hua
- College of Energy & School of Energy Research Xiamen University Xiamen Fujian P. R. China
| | - Peng Zhang
- College of Energy & School of Energy Research Xiamen University Xiamen Fujian P. R. China
| | - Xingwen Cha
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Kaiji Xu
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
| | - Guowu Zhan
- College of Chemical Engineering, Integrated Nanocatalysts Institute (INCI), Huaqiao University 668 Jimei Avenue Xiamen Fujian P. R. China
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15
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Chemically tailored microporous nanocomposite membranes with multi-channels for intensified solvent permeation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Li S, Yin Y, Liu S, Li H, Su B, Han L, Gao X, Gao C. Interlayered thin-film nanocomposite membrane with synergetic effect of COFs interlayer and GQDs incorporation for organic solvent nanofiltration. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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17
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Yang X, Huang J, Yang F, Wang W, Xue C, Zhou W, Wu Y, Shao L, Zhang Y. Metal-organophosphate biphasic interfacial coordination reaction synthesizing nanofiltration membranes with the ultrathin selective layer, excellent acid-resistance and antifouling performance. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120521] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Ultra-smooth and ultra-thin polyamide thin film nanocomposite membranes incorporated with functionalized MoS2 nanosheets for high performance organic solvent nanofiltration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120937] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Lu Z. Fabrication, characterization, and performance of poly (aryl ether nitrile) flat sheet ultrafiltration membranes with polyvinyl pyrrolidone as additives. JOURNAL OF POLYMER ENGINEERING 2022. [DOI: 10.1515/polyeng-2021-0359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Poly(aryl ether nitrile) (PEN) was used to fabricate ultrafiltration membrane via immersion precipitation phase inversion method. The effects of polyvinyl pyrrolidone (PVP) of different molecular weights and concentrations on the structure and performance of PEN membranes were investigated. The membranes were observed by scanning electron microscope, atomic force microscope, equilibrium water content (EWC), porosity (ε), and so on. The membranes were subjected to ultrafiltration characterizations such as pure water flux (PWF), compaction factor (CF), hydraulic permeability (P
m), and bovine serum albumin (BSA) rejection rate. The hydrophilicity was characterized by infrared spectroscopy and contact angle tests. Results showed that molecular weight of PVP had significant effect on PEN membrane formation, which the membrane prepared by PVP-k30 exhibited excellent comprehensive performance. Meanwhile, the concentration of PVP-k30 could effectively control the select-permeability of PEN membrane. With PVP-k30 concentration increased from 7 to 13 wt%, the prepared PEN membranes got higher EWC, ε, CF, and P
m. The PWF increased from 146.5 to 249.1 L m−2 h−1 bar−1, while the overall rejection of BSA remained above 90%. Further increasing the addition amount to 16 wt%, the membrane performance began to decline. Finally, the addition of PVP-k30 could effectively improve the hydrophilicity of prepared PEN membrane surface.
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Affiliation(s)
- Zhaohui Lu
- China Nuclear Power Technology Research Institute Co. Ltd. , Shenzhen , China
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Li S, Zhang R, Yao Q, Su B, Han L, Gao C. High flux thin film composite (TFC) membrane with non-planar rigid twisted structures for organic solvent nanofiltration (OSN). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120496] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Jin L, Hu L, Liang S, Wang Z, Xu G, Yang X. A novel organic solvent nanofiltration (OSN) membrane fabricated by Poly(m-phenylene isophthalamide) (PMIA) under large-scale and continuous process. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Goh KS, Chen Y, Ng DYF, Chew JW, Wang R. Organic solvent forward osmosis membranes for pharmaceutical concentration. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119965] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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TFC solvent-resistant nanofiltration membrane prepared via a gyroid-like PE support coated with polydopamine/Tannic acid-Fe(III). J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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24
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An ultrapermeable thin film composite membrane supported by “green” nanofibrous polyimide substrate for polar aprotic organic solvent recovery. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120192] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Zhou H, Akram A, Semiao AJ, Malpass-Evans R, Lau CH, McKeown NB, Zhang W. Enhancement of performance and stability of thin-film nanocomposite membranes for organic solvent nanofiltration using hypercrosslinked polymer additives. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120172] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Han C, Liu Q, Xia Q, Wang Y. Facilely cyclization-modified PAN nanofiber substrate of thin film composite membrane for ultrafast polar solvent separation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119911] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Aristizábal SL, Habboub OS, Pulido BA, Cetina-Mancilla E, Olvera LI, Forster M, Nunes SP, Scherf U, Zolotukhin MG. One-Step, Room Temperature Synthesis of Well-Defined, Organo-Soluble Multifunctional Aromatic Polyimides. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sandra L. Aristizábal
- Biological and Environmental Science and Engineering Division (BESE), Advanced Membranes and Porous Materials Center (AMPM), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Ola S. Habboub
- Biological and Environmental Science and Engineering Division (BESE), Advanced Membranes and Porous Materials Center (AMPM), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Bruno A. Pulido
- Biological and Environmental Science and Engineering Division (BESE), Advanced Membranes and Porous Materials Center (AMPM), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Enoc Cetina-Mancilla
- Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales, Circuito Exterior, Ciudad Universitaria, Coyoacán, Ciudad de México 04510, México
| | - Lilian I. Olvera
- Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales, Circuito Exterior, Ciudad Universitaria, Coyoacán, Ciudad de México 04510, México
| | - Michael Forster
- Wuppertal Center for Smart Materials & Systems, Bergische Universität Wuppertal, Gaußstr. 20, D-42119 Wuppertal, Germany
| | - Suzana P. Nunes
- Biological and Environmental Science and Engineering Division (BESE), Advanced Membranes and Porous Materials Center (AMPM), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Ullrich Scherf
- Wuppertal Center for Smart Materials & Systems, Bergische Universität Wuppertal, Gaußstr. 20, D-42119 Wuppertal, Germany
| | - Mikhail G. Zolotukhin
- Universidad Nacional Autónoma de México, Instituto de Investigaciones en Materiales, Circuito Exterior, Ciudad Universitaria, Coyoacán, Ciudad de México 04510, México
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Shi GM, Feng Y, Li B, Tham HM, Lai JY, Chung TS. Recent progress of organic solvent nanofiltration membranes. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101470] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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29
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High separation performance thin film composite and thin film nanocomposite hollow fiber membranes via interfacial polymerization for organic solvent nanofiltration. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119567] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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30
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Yang C, Li S, Lv X, Li H, Han L, Su B. Effectively regulating interfacial polymerization process via in-situ constructed 2D COFs interlayer for fabricating organic solvent nanofiltration membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119618] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Kim SD, Won GY, Shah AA, Park A, Park YI, Nam SE, Cho YH, Park H. Reinforcing the polybenzimidazole membrane surface by an ultrathin co-crosslinked polydopamine layer for organic solvent nanofiltration applications. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119587] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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32
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Fabrication of thin-film composite membranes for organic solvent nanofiltration by mixed monomeric polymerization on ionic liquid/water interfaces. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119551] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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33
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Sun Y, Sun T, Pang J, Cao N, Yue C, Wang J, Han X, Jiang Z. Poly(aryl ether ketone) membrane with controllable degree of sulfonation for organic solvent nanofiltration. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118956] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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34
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Yuan MJ, Hu ZY, Fang H, Li SJ, Guo HT, Hu RB, Jiang SH, Liu KM, Hou HQ. High Performance Electrospun Polynaphthalimide Nanofibrous Membranes with Excellent Resistance to Chemically Harsh Conditions. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2634-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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35
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Zhang Y, Ye H, Chen D, Li N, Xu Q, Li H, He J, Lu J. In situ assembly of a covalent organic framework composite membrane for dye separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119216] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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36
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Shui X, Li J, Zhang M, Fang C, Zhu L. Tailoring ultrathin microporous polyamide films with rapid solvent transport by molecular layer-by-layer deposition. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Wang Q, Dai F, Zhang S, Wang M, Chen C, Yu Y. Design of a novel poly(aryl ether nitrile)-based composite ultrafiltration membrane with improved permeability and antifouling performance using zwitterionic modified nano-silica. RSC Adv 2021; 11:15231-15244. [PMID: 35424037 PMCID: PMC8698232 DOI: 10.1039/d1ra00376c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/17/2021] [Indexed: 11/25/2022] Open
Abstract
Zwitterionic nano-silica (SiO2 NPs) obtained by lysine surface modification was used as a hydrophilic inorganic filler for preparing a poly(aryl ether nitrile) (PEN) nanocomposite membrane via an immersion precipitation phase inversion method. The effects of zwitterionic SiO2 NPs addition on the morphology, separation and antifouling performance of the synthesized membranes were investigated. Zwitterionic surface modification effectively avoided the agglomeration of SiO2 NPs. The PEN/zwitterionic SiO2 NPs composite membranes exhibited improved porosity, equilibrium water content, hydrophilicity and permeability due to the introduction of hydrophilic SiO2 NPs in the casting solution, and the optimal pure water flux was up to 507.2 L m−2 h−1, while the BSA rejection ratio was maintained at 97.4%. A static adsorption capacity of 72.9 μg cm−2 and the FRR up to 85.3% in the dynamic antifouling experiment proved that the introduction of zwitterionic SiO2 NPs inhibited irreversible fouling and enhanced the antifouling ability of the PEN membrane. Zwitterionic nano-silica (SiO2 NPs) obtained by lysine surface modification was used as a hydrophilic inorganic filler for preparing a poly(aryl ether nitrile) (PEN) nanocomposite membrane via an immersion precipitation phase inversion method.![]()
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Affiliation(s)
- Qi Wang
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University Shanghai 201620 P. R. China
| | - Fengna Dai
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University Shanghai 201620 P. R. China
| | - Shangying Zhang
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University Shanghai 201620 P. R. China
| | - Mengxia Wang
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University Shanghai 201620 P. R. China
| | - Chunhai Chen
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University Shanghai 201620 P. R. China
| | - Youhai Yu
- Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University Shanghai 201620 P. R. China
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38
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Luo X, Wang Z, Wu S, Fang W, Jin J. Metal ion cross-linked nanoporous polymeric membranes with improved organic solvent resistance for molecular separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.119002] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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39
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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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40
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Bioinspired: A 3D vertical silicon sponge-inspired construction of organic-inorganic loose mass transfer nanochannels for enhancing properties of polyimide nanofiltration membranes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Yao Q, Li S, Zhang R, Han L, Su B. High-throughput thin-film composite membrane via interfacial polymerization using monomers of ultra-low concentration on tannic acid – Copper interlayer for organic solvent nanofiltration. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118027] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Wei Y, Wang Y, Wang L, Yang H, Jin H, Lu P, Li Y. Simultaneous phase-inversion and crosslinking in organic coagulation bath to prepare organic solvent forward osmosis membranes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118829] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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43
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Hao L, Chi Z, Chen Q, Zhang H, Wang J. Constructing large loadings of dual pathways with Ti3C2Tx-CDs in thin film nanocomposite membrane for enhanced organic permeation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118872] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Sun Y, Zhou S, Qin G, Guo J, Zhang Q, Li S, Zhang S. A chemical-induced crystallization strategy to fabricate poly(ether ether ketone) asymmetric membranes for organic solvent nanofiltration. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118899] [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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45
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Novel solvent-resistant nanofiltration membranes using MPD co-crosslinked polyimide for efficient desalination. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118603] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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46
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Yang S, Li H, Zhang X, Du S, Zhang J, Su B, Gao X, Mandal B. Amine-functionalized ZIF-8 nanoparticles as interlayer for the improvement of the separation performance of organic solvent nanofiltration (OSN) membrane. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118433] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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47
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Cu(I/II) Metal-Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation. MEMBRANES 2020; 10:membranes10110313. [PMID: 33138087 PMCID: PMC7692870 DOI: 10.3390/membranes10110313] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 11/18/2022]
Abstract
Copper-based metal–organic frameworks (MOFs) with different oxidation states and near-uniform particle sizes have been successfully synthesized. Mixed-matrix polyimide membranes incorporating 0.1–7 wt% of Cu(II) benzene-1,2,5-tricarboxylic acid (Cu(II)BTC), Cu(I/II)BTC and Cu(I) 1,2-ethanedisulfonic acid (EDS) (Cu(I)EDS) MOFs were fabricated via non-solvent-induced phase inversion process. These membranes are found to be solvent resistant and mechanically stable. Liquid phase nanofiltration experiments were performed to separate toluene from n-heptane at room temperature. These membranes demonstrate preferential adsorption and permeation of the aromatic toluene over aliphatic n-heptane. The amount of MOF particles incorporated, the oxidation state of the Cu ion and membrane, and barrier layer thickness have a significant impact on the separation factor. Toluene/heptane separation factor at 1.47, 1.67 and 1.79 can be obtained for membranes incorporating 7 wt% Cu(II)BTC, Cu(I/II)BTC and Cu(I)EDS respectively at room temperature.
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48
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Li P, Zhang M, Zhai Z, Wang M, Li P, Hou Y, Jason Niu Q. Precise assembly of a zeolite imidazolate framework on polypropylene support for the fabrication of thin film nanocomposite reverse osmosis membrane. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118412] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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49
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Verbeke R, Seynaeve M, Bastin M, Davenport DM, Eyley S, Thielemans W, Koeckelberghs G, Elimelech M, Vankelecom IF. The significant role of support layer solvent annealing in interfacial polymerization: The case of epoxide-based membranes. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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50
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Li Y, Zhu J, Li S, Guo Z, Van der Bruggen B. Flexible Aliphatic-Aromatic Polyamide Thin Film Composite Membrane for Highly Efficient Organic Solvent Nanofiltration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31962-31974. [PMID: 32559377 DOI: 10.1021/acsami.0c07341] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Membranes with strong solvent resistance and efficient molecular separation are desirable in industries. Especially the fractionation of organic molecules in harsh organic solvents still remains a challenge in the pharmaceutical industry. Here, we report a flexible aliphatic-aromatic polyamide thin-film composite (TFC) membrane with high stability, permeability, and precise selectivity in mild solvents as well as in polar aprotic solvents. This composite organic solvent nanofiltration (OSN) membrane integrates a cross-linked sub-100 nm nanofilm and a nanofibrous sublayer. The flexible aliphatic chains in the polyamide network render the selective layer with a tunable free volume in different organic solvents. Consistent with the solvent swelling degrees, the membrane shows a cutoff in a sequence of dimethyl sulfoxide (DMSO, MWCO: 814 g mol-1) > N,N-dimethylformamide (DMF, MWCO: 648 g mol-1) > methanol (MWCO: 506 g mol-1, with DMF activation) > methanol (MWCO: 327 g mol-1). The membrane can precisely fractionate two molecules with difference in molar mass of <166 g mol-1 in a polar aprotic solvent, DMSO. Long-term filtration tests in DMF further demonstrate that the TFC membrane has an outstanding chemical stability and molecular selectivity in aggressive organic media. This work provides an efficient way to control OSN membrane separations by introducing flexible alkane chains into the rigid polymer structure followed by solvent activation. Additionally, the high permeance and excellent separation efficiency of the TFC membrane highlight its great potential for molecular separation in pharmaceutical and chemical industries.
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Affiliation(s)
- Yi Li
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Junyong Zhu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Sha Li
- Department of Bioengineering, Zunyi Medical University, Zhuhai Campus, Zhuhai, Guangdong 519041, P. R. China
| | - Zhong Guo
- Department of Bioengineering, Zunyi Medical University, Zhuhai Campus, Zhuhai, Guangdong 519041, P. R. China
| | - Bart Van der Bruggen
- Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
- Faculty of Engineering and the Built Environment, Tshwane University of Technology, Private Bag X680, Pretoria 0001, South Africa
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