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Zhao Y, Fu R, Hu F, Yan B, Yang Q, Gu Y, Lan J, Deng C, Chen S. Aqueous Dispersion of Aramid Nanofibers Achieved by Using Tannic Acid for Ultrahigh Strength Films. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38592862 DOI: 10.1021/acsami.4c00851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Polymer nanofibers have established a robust foundation and possess immense potential in various emerging fields such as sensors and biotechnology. In this study, aqueous dispersions of aramid nanofibers (ANFs) were successfully prepared by using tannic acid (TA). Morphological analysis revealed that TA effectively prevented self-aggregation of ANFs, and preserved the nanofiber structure during TA-assisted solvent exchange. Subsequently, the ANF and TA/ANF films were fabricated using casting and vacuum-assisted filtration techniques. Notably, the tensile strength of the casting TA/ANF film reached 393.8 MPa, exhibiting a remarkable improvement of 41.3% compared to that of the pure ANF film. These exceptional mechanical properties can be attributed to the well-dispersed nanostructures, hydrogen-bonding interactions, zigzag structures, and fiber-bridging effects. Furthermore, the TA/ANF film demonstrated superior ultraviolet (UV) shielding capabilities, visible transparency properties, and excellent resistance to chemical reagents. The above-mentioned interesting findings demonstrate its potential as a nanofiber-reinforced material for poly(vinyl alcohol) (PVA) composites.
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Affiliation(s)
- Yinghui Zhao
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Runfang Fu
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Fei Hu
- École Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères, Bâtiment MXD, Station12, 1015 Lausanne, Switzerland
| | - Bin Yan
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Qin Yang
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Yingchun Gu
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Jianwu Lan
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
| | - Cong Deng
- Analytical & Testing Center, Sichuan University, Chengdu 610065, China
| | - Sheng Chen
- College of Biomass Science and Engineering, National Engineering Laboratory for Clean Technology of Leather Manufacture, Sichuan University, Chengdu 610065, China
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Shafizadeh S, Heydari P, Zargar Kharazi A, Shariati L. Coaxial electrospun PGS/PCL and PGS/PGS-PCL nanofibrous membrane containing platelet-rich plasma for skin tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2024; 35:482-500. [PMID: 38190321 DOI: 10.1080/09205063.2023.2299073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 12/18/2023] [Indexed: 01/10/2024]
Abstract
Wound healing will be enhanced using structures with therapeutic effects. This study fabricated a novel nanofibrous scaffold for skin tissue regeneration using a coaxial structure polyglycerol sebacate (PGS)/platelet-rich plasma (PRP) was embedded in the core and two different compositions were selected for the shell; in one group, polycaprolactone (PCL), and in the other group, PGS/PCL blend was used. The physical, mechanical behavior, drug delivery patterns, and cell response of scaffolds were evaluated. Results revealed that by adding PRP to the core and PGS to the shell, fiber diameters decreased to 260.8 ± 31.3 nm. It also decreased the water contact angle from 66° to 32°, that is ideal candidate for cell attachment. The drug release showed a burst release pattern in the first 30 min, followed by a continuous and slow release during the first day. Adding PGS to the shell decreased the elastic modulus, and its value reached about 500 kPa, which is near the skin elastic modulus and will lead to greater mechanical compatibility for cell proliferation. Particularly, the addition of PRP to the fiber structure enhanced the cell viability and cell adhesion with a suitable morphology. Based on the results, nanofibrous PGS-PRP/PGS-PCL dressing can enhance skin tissue regeneration.
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Affiliation(s)
- Shima Shafizadeh
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Parisa Heydari
- Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Applied Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Laleh Shariati
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
- Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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3
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Zhang S, Jin K, Xu J, Ding L, Huang Y, Liu G, Liu X, Jiang S. Aramid nanofiber membrane decorated with monodispersed silver nanoparticles as robust and flexible SERS chips for trace detection of multiple toxic substances. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 308:123720. [PMID: 38091650 DOI: 10.1016/j.saa.2023.123720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/07/2023] [Accepted: 11/28/2023] [Indexed: 01/13/2024]
Abstract
Aramid nanofibers (ANFs) as an innovative nanoscale building block exhibit great potential for novel high-performance multifunctional membranes attributed to their extraordinary performance. However, the application of aramid nanofibers in the field of surface enhanced Raman scattering (SERS) sensing has been rarely reported. In this work, aramid nanofibers derived from commercial Kevlar fibers were synthesized by a facile dimethyl sulfoxide/potassium hydroxide (DMSO/KOH) solution treatment. The monodispersed silver nanoparticle-decorated aramid nanofiber (m-Ag@ANF) membranes were constructed by an efficient vacuum filtration technique. Taking advantages of unique intrinsic properties of ANF, the m-Ag@ANF substrates exhibit good flexibility, excellent mechanical properties and prominent thermal stability. Besides, due to the abundance of positively charged amino-group on the ANF substrates, the negatively charged m-AgNPs were uniformly and firmly deposited on the surface of ANF substrate through electrostatic interactions. As a result, the optimal flexible m-Ag-9@ANF SERS substrate exhibits high sensitivity of 10-9 M for methylene blue (MB) and excellent signal reproducibility (RSD = 6.37 %), as well as outstanding signal stability (up to 15 days). Besides, the 2D Raman mapping and FDTD simulations further reveal prominent signal homogeneity and strong electric field distribution for flexible m-Ag-9@ANF SERS substrate. Finally, it is demonstrated that the flexible m-Ag-9@ANF SERS substrate can also be used for detection of toxic molecules on irregular surfaces by a feasible paste-and-read process. The m-Ag@ANF paper exhibits potential applications as a flexible, low-cost, robust and stable SERS sensing platform for trace detection of toxic materials.
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Affiliation(s)
- Sihang Zhang
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, School of Food Science and Engineering, Hainan University, Haikou, 570228, China; School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China; Hainan Institute for Food Control, Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Haikou 570314, China
| | - Kejun Jin
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China
| | - Jiangtao Xu
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China
| | - Lei Ding
- Shandong Key Laboratory of Chemical Energy Storage and New Battery Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Yingying Huang
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China
| | - Guilian Liu
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China
| | - Xing Liu
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, School of Food Science and Engineering, Hainan University, Haikou, 570228, China
| | - Shouxiang Jiang
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China; Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hung Hom, Kowloon 999077, Hong Kong, China.
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Organic solvent-free constructing of stable zeolitic imidazolate framework functional layer enhanced by halloysite nanotubes and polyvinyl alcohol on polyvinylidene fluoride hollow fiber membranes for treating dyeing wastewater. J Colloid Interface Sci 2023; 636:378-387. [PMID: 36638576 DOI: 10.1016/j.jcis.2023.01.027] [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: 10/19/2022] [Revised: 12/23/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Abstract
In this study, zeolitic imidazolate framework (ZIF-8)/polyvinylidene fluoride (PVDF) loose nanofiltration (NF) hollow fiber membranes were fabricated by constructing ZIF-8 functional layer on the PVDF supporting membranes based on the vacuum-assisted assembly process. The ZIF-8 synthesis was completed in a water system, and the synthesized ZIF-8 suspension was directly added to polyvinyl alcohol (PVA) and halloysite nanotubes (HNTs) aqueous solution system without drying to prepare the casting solution, which could solve the agglomeration and poor dispersion problem of ZIF-8 particles. In addition, the embedded HNTs and the loaded PVA among the ZIF-8 layer could improve the bonding strength between the ZIF-8 layer and the supporting membranes. After constructing ZIF-8 functional layer, the pore size of supporting membranes decreased from more than 300 nm to several nanometers. Furthermore, the water contact angle reduced from 91.1° to 54.2°. Applied to treat dye wastewater, the prepared ZIF-8/PVDF membranes maintained high dye rejection (˃99.0 %) for Congo red (CR), but low salt rejection for NaCl (about 2 %). In addition, the flux could reach 21.6 L m-2h-1 after continuous filtration 360 min, exhibiting a potential for treating the dye/salt wastewater. In particular, there were no organic solvents used in the work, which provided a promising idea for solvent-free fabrication of loose NF membranes.
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Perry LA, Chew NGP, Grzebyk K, Cay-Durgun P, Lind ML, Sitaula P, Soukri M, Coronell O. Correlating the Role of Nanofillers with Active Layer Properties and Performance of Thin-Film Nanocomposite Membranes. DESALINATION 2023; 550:116370. [PMID: 37274380 PMCID: PMC10237506 DOI: 10.1016/j.desal.2023.116370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Thin-film nanocomposite (TFN) membranes are emerging water-purification membranes that could provide enhanced water permeance with similar solute removal over traditional thin-film composite (TFC) membranes. However, the effects of nanofiller incorporation on active layer physico-chemical properties have not been comprehensively studied. Accordingly, we aimed to understand the correlation between nanofillers, active layer physico-chemical properties, and membrane performance by investigating whether observed performance differences between TFN and control TFC membranes correlated with observed differences in physico-chemical properties. The effects of nanofiller loading, surface area, and size on membrane performance, along with active layer physico-chemical properties, were characterized in TFN membranes incorporated with Linde Type A (LTA) zeolite and zeolitic imidazole framework-8 (ZIF-8). Results show that nanofiller incorporation up to ~0.15 wt% resulted in higher water permeance and unchanged salt rejection, above which salt rejection decreased 0.9-25.6% and 26.1-48.3% for LTA-TFN and ZIF-8-TFN membranes, respectively. Observed changes in active layer physico-chemical properties were generally unsubstantial and did not explain observed changes in TFN membrane performance. Therefore, increased water permeance in TFN membranes could be due to preferential water transport through porous structures of nanofillers or along polymer-nanofiller interfaces. These findings offer new insights into the development of high-performance TFN membranes for water/ion separations.
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Affiliation(s)
- Lamar A. Perry
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7431, USA
- Curriculum in Applied Sciences and Engineering, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7431, USA
| | - Nick Guan Pin Chew
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7431, USA
| | - Kasia Grzebyk
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7431, USA
| | - Pinar Cay-Durgun
- School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Mary Laura Lind
- School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ 85287, USA
| | - Paban Sitaula
- RTI International, 3040 East Cornwallis Road, Research Triangle Park, Durham, NC 27709-2194, USA
| | - Mustapha Soukri
- RTI International, 3040 East Cornwallis Road, Research Triangle Park, Durham, NC 27709-2194, USA
| | - Orlando Coronell
- Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7431, USA
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Zan J, Shuai Y, Zhang J, Zhao J, Sun B, Yang L. Hyaluronic acid encapsulated silver metal organic framework for the construction of a slow-controlled bifunctional nanostructure: Antibacterial and anti-inflammatory in intrauterine adhesion repair. Int J Biol Macromol 2023; 230:123361. [PMID: 36693610 DOI: 10.1016/j.ijbiomac.2023.123361] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 01/05/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
Intrauterine adhesion (IUA) is a common gynecological disease caused by endometrial injury, which might result in abnormal menstruation, miscarriage, and even fetal deaths. Nevertheless, existing treatment strategies such as intrauterine device and uterine cavity balloons only provide a physical barrier, and not circumvent inflammation of endometrial microenvironment and retrograde infection. In this study, a slow-controlled bifunctional nanostructure was developed via encapsulating hyaluronic acid (HA) on surface of silver-metal organic framework (Ag-MOF), and then loaded in poly lactic-co-glycolic acid scaffold to prevent IUA. In therapy, macro-molecule of HA provided anti-inflammatory function by the adjustment of signal transduction pathways of macrophage surface receptors, whereas Ag-MOF inactivated bacteria by destroying bacterial membrane and producing reactive oxygen. Significantly, the coated HA effectively avoided burst release of Ag+, thus achieving long-term antibacterial property and good biocompatibility. Antibacterial results showed antibacterial rate of the scaffold reached 87.8 % against staphylococcus aureus. Anti-inflammatory assays showed that the scaffold inhibited the release of inflammatory cytokines and promoted the release of anti-inflammatory cytokines. Moreover, in vitro cell tests revealed that the scaffold effectively inhibited fibroblast growth, indicating its good ability to prevent IUA. Taken together, the scaffold may be a promising candidate for IUA treatment.
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Affiliation(s)
- Jun Zan
- Institute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Yang Shuai
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jun Zhang
- Department of Radiation and Medical Oncology, Hubei Key Laboratory of Tumor Biological Behaviors, Hubei Cancer Clinical Study Center, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Jiachi Zhao
- Institute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Bingxin Sun
- Institute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang 330013, China.
| | - Liuyimei Yang
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, China
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7
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Kim C, Koh DY, Lee Y, Choi J, Cho HS, Choi M. Bottom-up synthesis of two-dimensional carbon with vertically aligned ordered micropores for ultrafast nanofiltration. SCIENCE ADVANCES 2023; 9:eade7871. [PMID: 36763654 PMCID: PMC9917001 DOI: 10.1126/sciadv.ade7871] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
Two-dimensional (2D) carbon materials perforated with uniform micropores are considered ideal building blocks to fabricate advanced membranes for molecular separation and energy storage devices with high rate capabilities. However, creating high-density uniform micropores in 2D carbon using conventional perforation methods remains a formidable challenge. Here, we report a zeolite-templated bottom-up synthesis of ordered microporous 2D carbon. Through rational analysis of 255 zeolite structures, we find that the IWV zeolite having large 2D microporous channels and aluminosilicate compositions can serve as an ideal template for carbon replication. The resulting carbon is made of an extremely thin polyaromatic backbone and contains well-defined vertically aligned micropores (0.69 nm in diameter). Its areal pore density (0.70 nm-2) is considerably greater than that of porous graphene (<0.05 nm-2) prepared using top-down perforation methods. The isoporous membrane fabricated by assembling the exfoliated 2D carbon nanosheets exhibits outstanding permeance and molecular sieving properties in organic solvent nanofiltration.
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Affiliation(s)
- Chaehoon Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Dong-Yeun Koh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yongjin Lee
- Department of Chemistry and Chemical Engineering, Education and Research Center for Smart Energy and Materials, Inha University, Incheon 22212, Republic of Korea
| | - Jihoon Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Hae Sung Cho
- Department of Chemistry, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Minkee Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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8
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Chen Q, Hong L, Jiang SK, Zhang CX, Wang S, Li WX, Sun SP, Liu ML. Bird's nest -inspired fabrication of ZIF-8 interlayer for organic solvent nanofiltration membranes. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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9
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Wang Q, Xie D, Li FY, Liu HL, Chen GX, Yu MG. Aqueous construction of raspberry-like ZIF-8 hierarchical structures with enhanced superhydrophobic performance. NANOSCALE 2022; 14:13308-13314. [PMID: 36063419 DOI: 10.1039/d2nr03377a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Materials with super-wetting ability have attracted wide attention from both academia and industry due to their great potential applications. A straightforward and versatile route was proposed for the large-scale synthesis of a monodisperse raspberry-like metal-organic framework (ZIF-8) using zinc nitrate as a zinc source and dimethylimidazole as an organic ligand in aqueous solution. After hydrophobic treatment with hexadecyltrimethoxysilane, the ethanolic suspension of three-dimensional raspberry-like ZIF-8 showed excellent superhydrophobic properties. Furthermore, commercial adhesives were used to blend with the suspension to improve the bonding strength to different substrates. These surfaces retained their water resistance after 50 finger-wipe cycles, 40 sandpaper abrasions and knife scratches. Moreover, the prepared hydrophobic surface can withstand the impact of water flow for 10 minutes. The formulations developed can be used for superhydrophobic coating applications on different substrate surfaces such as aluminum foil, glass, paper and cotton.
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Affiliation(s)
- Q Wang
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center, Guangzhou 510316, China.
| | - D Xie
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center, Guangzhou 510316, China.
| | - F Y Li
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center, Guangzhou 510316, China.
| | - H L Liu
- Institute of Biological and Medical Engineering, Guangdong Academy of Sciences, Guangdong Biomaterials Engineering Technology Research Center, Guangzhou 510316, China.
| | - G X Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - M G Yu
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan 528000, China
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Cheng Y, Datta SJ, Zhou S, Jia J, Shekhah O, Eddaoudi M. Advances in metal-organic framework-based membranes. Chem Soc Rev 2022; 51:8300-8350. [PMID: 36070414 DOI: 10.1039/d2cs00031h] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Membrane-based separations have garnered considerable attention owing to their high energy efficiency, low capital cost, small carbon footprint, and continuous operation mode. As a class of highly porous crystalline materials with well-defined pore systems and rich chemical functionalities, metal-organic frameworks (MOFs) have demonstrated great potential as promising membrane materials over the past few years. Different types of MOF-based membranes, including polycrystalline membranes, mixed matrix membranes (MMMs), and nanosheet-based membranes, have been developed for diversified applications with remarkable separation performances. In this comprehensive review, we first discuss the general classification of membranes and outline the historical development of MOF-based membranes. Subsequently, particular attention is devoted to design strategies for MOF-based membranes, along with detailed discussions on the latest advances on these membranes for various gas and liquid separation processes. Finally, challenges and future opportunities for the industrial implementation of these membranes are identified and outlined with the intent of providing insightful guidance on the design and fabrication of high-performance membranes in the future.
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Affiliation(s)
- Youdong Cheng
- Functional Materials, Design, Discovery and Development (FMD3), Advanced Membrane & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Shuvo Jit Datta
- Functional Materials, Design, Discovery and Development (FMD3), Advanced Membrane & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Sheng Zhou
- Functional Materials, Design, Discovery and Development (FMD3), Advanced Membrane & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Jiangtao Jia
- Functional Materials, Design, Discovery and Development (FMD3), Advanced Membrane & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Osama Shekhah
- Functional Materials, Design, Discovery and Development (FMD3), Advanced Membrane & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Mohamed Eddaoudi
- Functional Materials, Design, Discovery and Development (FMD3), Advanced Membrane & Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
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11
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Lau HS, Lau SK, Soh LS, Hong SU, Gok XY, Yi S, Yong WF. State-of-the-Art Organic- and Inorganic-Based Hollow Fiber Membranes in Liquid and Gas Applications: Looking Back and Beyond. MEMBRANES 2022; 12:539. [PMID: 35629866 PMCID: PMC9144028 DOI: 10.3390/membranes12050539] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/19/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
The aggravation of environmental problems such as water scarcity and air pollution has called upon the need for a sustainable solution globally. Membrane technology, owing to its simplicity, sustainability, and cost-effectiveness, has emerged as one of the favorable technologies for water and air purification. Among all of the membrane configurations, hollow fiber membranes hold promise due to their outstanding packing density and ease of module assembly. Herein, this review systematically outlines the fundamentals of hollow fiber membranes, which comprise the structural analyses and phase inversion mechanism. Furthermore, illustrations of the latest advances in the fabrication of organic, inorganic, and composite hollow fiber membranes are presented. Key findings on the utilization of hollow fiber membranes in microfiltration (MF), nanofiltration (NF), reverse osmosis (RO), forward osmosis (FO), pervaporation, gas and vapor separation, membrane distillation, and membrane contactor are also reported. Moreover, the applications in nuclear waste treatment and biomedical fields such as hemodialysis and drug delivery are emphasized. Subsequently, the emerging R&D areas, precisely on green fabrication and modification techniques as well as sustainable materials for hollow fiber membranes, are highlighted. Last but not least, this review offers invigorating perspectives on the future directions for the design of next-generation hollow fiber membranes for various applications. As such, the comprehensive and critical insights gained in this review are anticipated to provide a new research doorway to stimulate the future development and optimization of hollow fiber membranes.
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Affiliation(s)
- Hui Shen Lau
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Siew Kei Lau
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Leong Sing Soh
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Seang Uyin Hong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Xie Yuen Gok
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
| | - Shouliang Yi
- U.S. Department of Energy, National Energy Technology Laboratory, 626 Cochrans Mill Rd, Pittsburgh, PA 15236, USA;
| | - Wai Fen Yong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Sepang 43900, Selangor, Malaysia; (H.S.L.); (S.K.L.); (L.S.S.); (S.U.H.); (X.Y.G.)
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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12
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Zhang S, Luo J, Zhang F, Du M, Hui H, Zhao F, He X, Sun Z. A porous, mechanically strong and thermally stable zeolitic imidazolate framework-8@bacterial cellulose/aramid nanofibers composite separator for advanced lithium-ion batteries. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120461] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Solvent remelted nylon polyamide nanofibrous substrate that enhances thin-film composite membranes for organic solvent nanofiltration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120322] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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14
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Zhou A, Wang Y, Cheng D, Li M, Wang L. Effective interfacially polymerized polyarylester solvent resistant nanofiltration membrane from liquefied walnut shell. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-021-1048-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Peng G, Yaoqin W, Changmei S, Chunnuan J, Ying Z, Rongjun Q, Ying W. Preparation and properties of PVC-based ultrafiltration membrane reinforced by in-situ synthesized p-aramid nanoparticles. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119993] [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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16
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Triethanolamine modification produces ultra-permeable nanofiltration membrane with enhanced removal efficiency of heavy metal ions. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120127] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Wei Y, Yang Z, Wang L, Yu Y, Yang H, Jin H, Lu P, Wang Y, Wu D, Li Y, Tang CY. Facile ZIF–8 nanocrystals interlayered solvent–resistant thin–film nanocomposite membranes for enhanced solvent permeance and rejection. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119586] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Ma S, Ji Y, Dong Y, Chen S, Wang Y, Lü S. An environmental-friendly pesticide-fertilizer combination fabricated by in-situ synthesis of ZIF-8. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 789:147845. [PMID: 34058575 DOI: 10.1016/j.scitotenv.2021.147845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/02/2021] [Accepted: 05/15/2021] [Indexed: 05/20/2023]
Abstract
Stimulus-responsive pesticide or fertilizer systems have been emerged to improve the use efficiency of agrochemicals, reduce over-application and ensuing environmental problems. However, environmental-friendly synthesis of these systems still remain challenging. In this work, an environmental-friendly synthesis strategy has been developed to form a pesticide and fertilizer combination to achieve the integration of plant protection and nutrient supply. This pesticide-fertilizer combination system was fabricated using ammonium zinc phosphate (ZNP) and in-situ synthesized zeolitic imidazolate framework-8 (ZIF-8) as nutrients resources, and dinotefuran (DNF) as a pesticide. DNF was encapsulated in-situ (loading capacity of 12.32 ± 0.46%) during the ZIF-8 crystal synthesis process, rather than loaded by further adsorption, which improved its stability and prevented premature or rapid release. The hydrophobic ZIF-8 provided a pH-responsive slow-release behavior. The cumulative released DNF within seven days at pH 4.0, 7.0 and 10.0 was 66.30%, 40.41%, and 37.44%, respectively. The pesticide-fertilizer combination system showed significant effects on corn seed pre-cultivation, soil cultivation and pest control. This work provides a strategy for the integration of pesticide and fertilizer, which will reduce negative environmental effects caused by their over-applications and have great potential in modern sustainable agriculture.
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Affiliation(s)
- Song Ma
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yanzheng Ji
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yongjie Dong
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Siqi Chen
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yingjie Wang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Shaoyu Lü
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
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19
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Zhao Y, Wu M, Guo Y, Mamrol N, Yang X, Gao C, Van der Bruggen B. Metal-organic framework based membranes for selective separation of target ions. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119407] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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20
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Ma K, Wang N, Wang C, An QF. Freezing assisted in situ growth of nano-confined ZIF-8 composite membrane for dye removal from water. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119352] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Recent advances in nanomaterial-incorporated nanocomposite membranes for organic solvent nanofiltration. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118657] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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22
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Shen P, Liao J, Chen Q, Ruan H, Shen J. Organic solvent resistant Kevlar nanofiber-based cation exchange membranes for electrodialysis applications. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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23
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Ahmad K, Shah HUR, Nasim HA, Ayub A, Ashfaq M, Rauf A, Shah SSA, Ahmad MM, Nawaz H, Hussain E. Synthesis and characterization of water stable polymeric metallo organic composite (PMOC) for the removal of arsenic and lead from brackish water. TOXIN REV 2021. [DOI: 10.1080/15569543.2021.1919902] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Khalil Ahmad
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
| | - Habib-Ur-Rehman Shah
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
| | - Hafiza Ammara Nasim
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
| | - Asif Ayub
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Ashfaq
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
| | - Abdul Rauf
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
| | - Syed Shoaib Ahmad Shah
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
- Department of Chemistry, CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, PR China
| | | | - Haq Nawaz
- CAS Key Laboratory of Engineering Plastics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, China
| | - Ejaz Hussain
- Institute of Chemistry, The Islamia University of Bahawalpur, Baghdad ul Jadeed Campus, Bahawalpur, Pakistan
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24
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Sub10 μm macroporous aramid substrates with a hierarchically structured interface for organic solvent nanofiltration. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Huang JH, Cheng XQ, Bai Q, Zhang YJ, Wang K, Ma J, Shao L. Ultrafast Poly(sodium methacrylate)-Grafted UiO-66-Incorporated Nanocomposite Membranes Enable Excellent Active Pharmaceutical Ingredient Concentration. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00705] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jun Hui Huang
- School of Marine Science and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Weihai 264209, P. R. China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Xi Quan Cheng
- School of Marine Science and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Weihai 264209, P. R. China
- Sino-European Membrane Technology Research Institute Co., Ltd., Weihai 264209, P. R. China
| | - Qing Bai
- School of Marine Science and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Ying Jie Zhang
- School of Marine Science and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Kai Wang
- School of Marine Science and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Weihai 264209, P. R. China
| | - Jun Ma
- School of Environmental Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, Harbin 150001, P. R. China
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26
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Ahmad K, Shah HUR, Ashfaq M, Shah SSA, Hussain E, Naseem HA, Parveen S, Ayub A. Effect of metal atom in zeolitic imidazolate frameworks (ZIF-8 & 67) for removal of Pb2+ & Hg2+ from water. Food Chem Toxicol 2021; 149:112008. [DOI: 10.1016/j.fct.2021.112008] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/24/2020] [Accepted: 01/14/2021] [Indexed: 02/07/2023]
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27
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Zhao B, Shi GM, Wang KY, Lai JY, Chung TS. Employing a green cross-linking method to fabricate polybenzimidazole (PBI) hollow fiber membranes for organic solvent nanofiltration (OSN). Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117702] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Liu LJ, Chen GE, Mao HF, Wang Y, Wan JJ. High performance polyvinylidene fluoride (PVDF) mixed matrix membrane (MMM) doped by various zeolite imidazolate frameworks. HIGH PERFORM POLYM 2020. [DOI: 10.1177/0954008320952525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Zeolitic imidazolate framework (ZIF-8) in three particle sizes (40, 70 and 100 nm) was prepared through both solvothermal and hydrothermal methods and employed to decorate polyvinylidene fluoride (PVDF). The finger-like macro-voids, sponge-like poly-porous morphology and surface roughness of prepared membranes were characterized by SEM and AFM microscopy. The FTIR spectrum and XPS analysis bear out the chemical component. ZIF-8 has the characteristics of higher porosity and appropriate pore size, which is a condition for improving the permeability and pollution resistance of the modified membrane. Results indicated that different ZIF-8s have different enhancement effects on PVDF MMM. 100 nm ZIF-8 membrane possessed pure water flux (PWF) of 350 L m−2h−1, which was 10 times more than the bare membrane (30 L m−2h−1), and OVA flux recovery ration (FRR%) is 98%. 40 nm ZIF-8 membrane owned BSA FRR% of 98.4%. The 70 nm ZIF-8 showed the best mechanical properties. The dynamic contact angles of UP-Z70 ranged from 104.5° to 62.5° within 180 s. Furthermore, pore size distribution, molecular weight cut-off (MWCO) and porosity were also researched to evaluate the MMM. The dislodge of Reactive Black KN-B, Reactive Red 3BS and Reactive Brilliant Blue KN-R dyes by MMM were studied under different dye concentrations and transmembrane pressures. The membrane can provide selective separation methods for dyes and Reactive Brilliant Blue KN-R up to 99%. Overall, the permeability, hydrophilicy, anti-fouling performance and wastewater treatment of modified membranes were regulated by the ZIF-8 in a steerable blending reaction modification process.
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Affiliation(s)
- Lian-Jing Liu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Gui-E Chen
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Hai-Fang Mao
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Yang Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
| | - Jia-Jun Wan
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
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29
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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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