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Eddine MA, Carvalho A, Schmutz M, Salez T, de Chateauneuf-Randon S, Bresson B, Pantoustier N, Monteux C, Belbekhouche S. Tuning the water intrinsic permeability of PEGDA hydrogel membranes by adding free PEG chains of varying molar masses. SOFT MATTER 2024; 20:5367-5376. [PMID: 38916101 DOI: 10.1039/d4sm00376d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
We explore the effect of poly(ethylene glycol) (PEG) molar mass on the intrinsic permeability and structural characteristics of poly(ethylene glycol) diacrylate PEGDA/PEG composite hydrogel membranes. We observe that by varying the PEG content and molar mass, we can finely adjust the water intrinsic permeability by several orders of magnitude. Notably, we show the existence of maximum water intrinsic permeability, already identified in a previous study to be located at the critical overlap concentration C* of PEG chains, for the highest PEG molar mass studied. Furthermore, we note that the maximum intrinsic permeability follows a non-monotonic evolution with respect to the PEG molar mass and reaches its peak at 35 000 g mol-1. Besides, our results show that a significant fraction of PEG chains is irreversibly trapped within the PEGDA matrix even for the lowest molar masses down to 600 g mol-1. This observation suggests the possibility of covalent grafting of the PEG chains onto the PEGDA matrix. CryoSEM and AFM measurements demonstrate the presence of large micron-sized cavities separated by PEGDA-rich walls whose nanometric structures strongly depend on the PEG content. By combining our permeability and structural measurements, we suggest that the PEG chains trapped inside the PEGDA-rich walls induce nanoscale defects in the crosslinking density, resulting in increased permeability below C*. Conversely, above C*, we speculate that partially trapped PEG chains may form a brush-like arrangement on the surface of the PEGDA-rich walls, leading to a reduction in permeability. These two opposing effects are anticipated to exhibit molar-mass-dependent trends, contributing to the non-monotonic variation of the maximum intrinsic permeability at C*. Overall, our results demonstrate the potential to fine-tune the properties of hydrogel membranes, offering new opportunities for separation applications.
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Affiliation(s)
- Malak Alaa Eddine
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, 10 rue Vauquelin, Cedex 05 75231 Paris, France.
- Université Paris Est Creteil, CNRS, Institut Chimie et Matériaux Paris Est, UMR 7182, 2 Rue Henri Dunant, 94320 Thiais, France.
| | - Alain Carvalho
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, 67034 Strasbourg Cedex 02, France
| | - Marc Schmutz
- Université de Strasbourg, CNRS, Institut Charles Sadron, 23 rue du Loess, 67034 Strasbourg Cedex 02, France
| | - Thomas Salez
- Univ. Bordeaux, CNRS, LOMA, UMR 5798, F-33400 Talence, France
| | - Sixtine de Chateauneuf-Randon
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, 10 rue Vauquelin, Cedex 05 75231 Paris, France.
| | - Bruno Bresson
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, 10 rue Vauquelin, Cedex 05 75231 Paris, France.
| | - Nadège Pantoustier
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, 10 rue Vauquelin, Cedex 05 75231 Paris, France.
| | - Cécile Monteux
- Laboratoire Sciences et Ingénierie de la Matière Molle, ESPCI Paris, 10 rue Vauquelin, Cedex 05 75231 Paris, France.
| | - Sabrina Belbekhouche
- Université Paris Est Creteil, CNRS, Institut Chimie et Matériaux Paris Est, UMR 7182, 2 Rue Henri Dunant, 94320 Thiais, France.
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Li L, Baig MI, de Vos WM, Lindhoud S. Biocatalytic PEI-PSS membranes through aqueous phase separation: influence of casting solution pH and operational temperature. SOFT MATTER 2024; 20:5425-5434. [PMID: 38946525 DOI: 10.1039/d4sm00311j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Biocatalytic membranes combine the separation properties of membranes and the catalytic abilities of enzymes, holding great promise for industries where both purification and conversion are required. In this work, polyelectrolyte complex membranes incorporated with lysozyme were prepared using polyethyleneimine (PEI) and poly(sodium 4-styrenesulfonate) (PSS) through a one-step and mild pH shift aqueous phase separation (APS) approach. The effects of lysozyme addition and casting solution pH on the membrane properties were studied. All the membranes, both with and without added lysozyme, exhibited asymmetric structures with relatively dense top surfaces and porous cross-sections with finger-like macrovoids. The incorporation of lysozyme did not significantly influence the structure and permeability of the formed membranes. The PEI-PSS biocatalytic membranes exhibited temperature dependent enzymatic activity. The activity strongly increased with increased operational temperature, with the highest activity of 4.30 ± 0.15 U cm-2 at 45 °C. This indicates a responsive effect, where a higher temperature leads to some swelling of the polyelectrolyte complex membrane, making the enzyme more accessible to the used substrate. Moreover, the biocatalytic membranes demonstrate desirable enzymatic stability, maintaining 60% activity even after 60 days of storage. This study validates the potential of the water-based APS process as a straightforward approach for integrating enzymes into responsive biocatalytic membranes.
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Affiliation(s)
- Lijie Li
- Faculty of Science and Technology, Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands.
- Department of Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands
| | - Muhammad Irshad Baig
- Department of Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands
| | - Wiebe M de Vos
- Department of Membrane Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands
| | - Saskia Lindhoud
- Faculty of Science and Technology, Department of Molecules & Materials, MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands.
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Dong X, Wan B, Zha JW. Versatile Landscape of Low- k Polyimide: Theories, Synthesis, Synergistic Properties, and Industrial Integration. Chem Rev 2024; 124:7674-7711. [PMID: 38847509 DOI: 10.1021/acs.chemrev.3c00802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
The development of microelectronics and large-scale intelligence nowadays promotes the integration, miniaturization, and multifunctionality of electronic and devices but also leads to the increment of signal transmission delays, crosstalk, and energy consumption. The exploitation of materials with low permittivity (low-k) is crucial for realizing innovations in microelectronics. However, due to the high permittivity of conventional interlayer dielectric material (k ∼ 4.0), it is difficult to meet the demands of current microelectronic technology development (k < 3.0). Organic dielectric materials have attracted much attention because of their relatively low permittivity owing to their low material density and low single bond polarization. Polyimide (PI) exhibits better application potential based on its well permittivity tunability (k = 1.1-3.2), high thermal stability (>500 °C), and mechanical property (modulus of elasticity up to 3.0-4.0 GPa). In this review, based on the synergistic relationship of dielectric parameters of materials, the development of nearly 20 years on low-k PI is thoroughly summarized. Moreover, process strategies for modifying low-k PI at the molecular level, multiphase recombination, and interface engineering are discussed exhaustively. The industrial application, technological challenges, and future development of low-k PI are also analyzed, which will provide meaningful guidance for the design and practical application of multifunctional low-k materials.
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Affiliation(s)
- Xiaodi Dong
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Baoquan Wan
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jun-Wei Zha
- Beijing Advanced Innovation Center for Materials Genome Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Shunde Innovation School, University of Science and Technology Beijing, Foshan 528300, China
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Luo T, Farooq A, Weng W, Lu S, Luo G, Zhang H, Li J, Zhou X, Wu X, Huang L, Chen L, Wu H. Progress in the Preparation and Application of Breathable Membranes. Polymers (Basel) 2024; 16:1686. [PMID: 38932036 PMCID: PMC11207707 DOI: 10.3390/polym16121686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/06/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Breathable membranes with micropores enable the transfer of gas molecules while blocking liquids and solids, and have a wide range of applications in medical, industrial, environmental, and energy fields. Breathability is highly influenced by the nature of a material, pore size, and pore structure. Preparation methods and the incorporation of functional materials are responsible for the variety of physical properties and applications of breathable membranes. In this review, the preparation methods of breathable membranes, including blown film extrusion, cast film extrusion, phase separation, and electrospinning, are discussed. According to the antibacterial, hydrophobic, thermal insulation, conductive, and adsorption properties, the application of breathable membranes in the fields of electronics, medicine, textiles, packaging, energy, and the environment are summarized. Perspectives on the development trends and challenges of breathable membranes are discussed.
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Affiliation(s)
- Tingshuai Luo
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
| | - Ambar Farooq
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
| | - Wenwei Weng
- Fujian Key Laboratory of Disposable Sanitary Products, Fujian Hengan International Group Company Ltd., Jinjiang 362261, China; (W.W.); (G.L.)
| | - Shengchang Lu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
| | - Gai Luo
- Fujian Key Laboratory of Disposable Sanitary Products, Fujian Hengan International Group Company Ltd., Jinjiang 362261, China; (W.W.); (G.L.)
| | - Hui Zhang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China
| | - Jianguo Li
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China
| | - Xiaxing Zhou
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China
| | - Xiaobiao Wu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- Fujian Key Laboratory of Disposable Sanitary Products, Fujian Hengan International Group Company Ltd., Jinjiang 362261, China; (W.W.); (G.L.)
| | - Liulian Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China
| | - Lihui Chen
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China
| | - Hui Wu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China; (T.L.); (A.F.); (H.Z.); (J.L.); (X.Z.); (L.H.); (L.C.)
- National Forestry and Grassland Administration Key Laboratory of Plant Fiber Functional Materials, Fuzhou 350108, China
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Aquino M, Santoro S, Politano A, D’Andrea G, Siciliano A, Straface S, La Russa MF, Curcio E. Environmentally Friendly Photothermal Membranes for Halite Recovery from Reverse Osmosis Brine via Solar-Driven Membrane Crystallization. MEMBRANES 2024; 14:87. [PMID: 38668115 PMCID: PMC11052490 DOI: 10.3390/membranes14040087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/04/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024]
Abstract
Modern society and industrial development rely heavily on the availability of freshwater and minerals. Seawater reverse osmosis (SWRO) has been widely adopted for freshwater supply, although many questions have arisen about its environmental sustainability owing to the disposal of hypersaline rejected solutions (brine). This scenario has accelerated significant developments towards the hybridization of SWRO with membrane distillation-crystallization (MD-MCr), which can extract water and minerals from spent brine. Nevertheless, the substantial specific energy consumption associated with MD-MCr remains a significant limitation. In this work, energy harvesting was secured from renewables by hotspots embodied in the membranes, implementing the revolutionary approach of brine mining via photothermal membrane crystallization (PhMCr). This method employs self-heating nanostructured interfaces under solar radiation to enhance water evaporation, creating a carefully controlled supersaturated environment responsible for the extraction of minerals. Photothermal mixed matrix photothermal membranes (MMMs) were developed by incorporating graphene oxide (GO) or carbon black (CB) into polyvinylidene fluoride (PVDF) solubilized in an eco-friendly solvent (i.e., triethyl phosphate (TEP)). MMMs were prepared using non-solvent-induced phase separation (NIPS). The effect of GO or GB on the morphology of MMMs and the photothermal behavior was examined. Light-to-heat conversion was used in PhMCr experiments to facilitate the evaporation of water from the SWRO brine to supersaturation, leading to sodium chloride (NaCl) nucleation and crystallization. Overall, the results indicate exciting perspectives of PhMCr in brine valorization for a sustainable desalination industry.
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Affiliation(s)
- Marco Aquino
- Department of Environmental Engineering, University of Calabria (DIAm-UNICAL), Via P. Bucci, CUBO 44/A, 87036 Rende, Italy; (M.A.); (G.D.); (A.S.); (S.S.); (E.C.)
| | - Sergio Santoro
- Department of Environmental Engineering, University of Calabria (DIAm-UNICAL), Via P. Bucci, CUBO 44/A, 87036 Rende, Italy; (M.A.); (G.D.); (A.S.); (S.S.); (E.C.)
| | - Antonio Politano
- Department of Physical and Chemical Sciences, University of L’Aquila, Via Vetoio, 67100 L’Aquila, Italy;
| | - Giuseppe D’Andrea
- Department of Environmental Engineering, University of Calabria (DIAm-UNICAL), Via P. Bucci, CUBO 44/A, 87036 Rende, Italy; (M.A.); (G.D.); (A.S.); (S.S.); (E.C.)
| | - Alessio Siciliano
- Department of Environmental Engineering, University of Calabria (DIAm-UNICAL), Via P. Bucci, CUBO 44/A, 87036 Rende, Italy; (M.A.); (G.D.); (A.S.); (S.S.); (E.C.)
| | - Salvatore Straface
- Department of Environmental Engineering, University of Calabria (DIAm-UNICAL), Via P. Bucci, CUBO 44/A, 87036 Rende, Italy; (M.A.); (G.D.); (A.S.); (S.S.); (E.C.)
| | - Mauro Francesco La Russa
- Department of Biology, Ecology and Earth Sciences, University of Calabria (DiBEST-UNICAL), Via P. Bucci, CUBO 12/B, 87036 Rende, Italy;
| | - Efrem Curcio
- Department of Environmental Engineering, University of Calabria (DIAm-UNICAL), Via P. Bucci, CUBO 44/A, 87036 Rende, Italy; (M.A.); (G.D.); (A.S.); (S.S.); (E.C.)
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6
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Lee C, Lee S, Kang SW. Enhanced porous membrane fabrication using cellulose acetate and citric acid: Improved structural integrity, thermal stability, and gas permeability. Carbohydr Polym 2024; 324:121571. [PMID: 37985069 DOI: 10.1016/j.carbpol.2023.121571] [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: 09/24/2023] [Revised: 11/03/2023] [Accepted: 11/05/2023] [Indexed: 11/22/2023]
Abstract
In this study, our primary objective was to enhance the properties of porous membranes by addressing the limitations associated with phase separation. We employed a non-solvent induced phase separation (NIPS) method, utilizing cellulose acetate (CA) in conjunction with citric acid to fabricate these membranes. Citric acid played a dual role: ensuring a uniform pore structure and cross-linking the CA polymer, thereby enhancing its mechanical strength. This approach resulted in the development of a more robust membrane with superior structural integrity. Thermogravimetric analysis (TGA) confirmed enhanced thermal stability, particularly up to 150 °C, as a result of citric acid's cross-linking effect. Beyond 150 °C, the decomposition temperatures of the CA/citric acid membrane were found to be comparable to those of pure CA. Remarkably, a CA/citric acid ratio of 1:0.05 exhibited the slowest decomposition rate as the temperature increased. Scanning electron microscopy (SEM) examination unveiled a sponge-like membrane structure with numerous evenly distributed fine pores. Through the use of citric acid as a plasticizer, we were able to effectively control the penetration of water molecules, preventing the formation of macrovoids and promoting the creation of fine pores. This resulted in the fabrication of a high-porosity membrane, boasting an impressive porosity measurement of 84.9 %. Furthermore, measurements of the Gurley value confirmed efficient gas permeation, a critical characteristic for applications requiring effective gas transport. Fourier transform infrared (FT-IR) spectroscopy attested to the presence of citric acid in the membrane post-phase separation, indicating its successful integration. Our work presents a novel approach to enhance porous membranes, providing improvements in mechanical strength, thermal stability, and gas permeability. These findings offer valuable insights for the development of advanced materials with diverse applications in various fields.
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Affiliation(s)
- Chaeyeon Lee
- Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Republic of Korea
| | - Sojeong Lee
- Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Republic of Korea
| | - Sang Wook Kang
- Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Republic of Korea.
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7
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Aydin M, Sahin M, Dogan Z, Kiziltas G. Microstructural Characterization of PCL-HA Bone Scaffolds Based on Nonsolvent-Induced Phase Separation. ACS OMEGA 2023; 8:47595-47605. [PMID: 38144070 PMCID: PMC10734037 DOI: 10.1021/acsomega.3c05616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 12/26/2023]
Abstract
Composite materials containing pores play a crucial role in the field of bone tissue engineering. The nonsolvent-induced phase separation (NIPS) technique, commonly used for manufacturing membranes, has proven to be an effective method for fabricating composite scaffolds with tunable porosity. To explore this potential, we produced 10% (w/v) poly(caprolactone) (PCL)-nanohydroxyapatite (HA) composite porous film scaffolds with varying HA contents (0/10/15/20 wt %) and two thicknesses (corresponding to 1 and 2 mL of solution resulting in 800-900 and 1600-1800 μm thickness, respectively) using the NIPS method. We conducted a comprehensive analysis of how the internal microstructure and surface characteristics of these scaffolds varied based on their composition and thickness. In particular, for each scaffold, we analyzed overall porosity, pore size distribution, pore shape, and degree of anisotropy as well as mechanical behaviors. Micro-CT and SEM analyses revealed that PCL-HA scaffolds with various HA contents possessed micro (<100 μm) scale porosity due to the NIPS method. Greater thicknesses typically resulted in larger average pore sizes and greater overall porosity. However, unlike in thinner scaffolds, greater/higher HA content did not exhibit a direct correlation with a greater pore size for thicker scaffolds. In thinner scaffolds, adding HA above an effective threshold content of 15 wt % and beyond did lead to a greater pore size. The higher pore anisotropy was in line with the higher HA content for both groups. SEM images demonstrated that both groups showed highly uniformly distributed internal microporous morphology regardless of HA content and thickness. The results suggest that NIPS-based scaffolds hold promise for bone tissue engineering but that the optimal HA content and thickness should be carefully considered based on desired porosity and application.
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Affiliation(s)
- Mehmet
Serhat Aydin
- Department
of Material Science and Nanoengineering, Faculty of Engineering and
Natural Sciences, Sabanci University, Istanbul 34956, Turkey
- Center
for Translational Oral Research (TOR), Department of Clinical Dentistry,
Faculty of Medicine, University of Bergen, Bergen 5009, Norway
| | - Mervenaz Sahin
- Department
of Material Science and Nanoengineering, Faculty of Engineering and
Natural Sciences, Sabanci University, Istanbul 34956, Turkey
| | - Zeynep Dogan
- Department
of Molecular Biology, Genetics and Bioengineering, Faculty of Engineering
and Natural Sciences, Sabancı University, Istanbul 34956, Turkey
| | - Gullu Kiziltas
- Department
of Mechatronics, Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkey
- Sabanci
University Nanotechnology Research and Application Center, Istanbul 34956, Turkey
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8
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Garcia JU, Tree DR, Bagoyo A, Iwama T, Delaney KT, Fredrickson GH. Coarsening dynamics of ternary polymer solutions with mobility and viscosity contrasts. J Chem Phys 2023; 159:214904. [PMID: 38054518 DOI: 10.1063/5.0173992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/14/2023] [Indexed: 12/07/2023] Open
Abstract
Using phase-field simulations, we investigate the bulk coarsening dynamics of ternary polymer solutions undergoing a glass transition for two models of phase separation: diffusion only and with hydrodynamics. The glass transition is incorporated in both models by imposing mobility and viscosity contrasts between the polymer-rich and polymer-poor phases of the evolving microstructure. For microstructures composed of polymer-poor clusters in a polymer-rich matrix, the mobility and viscosity contrasts significantly hinder coarsening, effectively leading to structural arrest. For microstructures composed of polymer-rich clusters in a polymer-poor matrix, the mobility and viscosity contrasts do not impede domain growth; rather, they change the transient concentration of the polymer-rich phase, altering the shape of the discrete domains. This effect introduces several complexities to the coarsening process, including percolation inversion of the polymer-rich and polymer-poor phases-a phenomenon normally attributed to viscoelastic phase separation.
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Affiliation(s)
- Jan Ulric Garcia
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA
- Asahi Kasei Corporation, 2-1 Samejima, Fuji, Shizuoka 416-8501, Japan
| | - Douglas R Tree
- Department of Chemical Engineering, Brigham Young University, Provo, Utah 84602, USA
| | - Alyssa Bagoyo
- Department of Chemical Engineering, Brigham Young University, Provo, Utah 84602, USA
| | - Tatsuhiro Iwama
- Asahi Kasei Corporation, 2-1 Samejima, Fuji, Shizuoka 416-8501, Japan
| | - Kris T Delaney
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
| | - Glenn H Fredrickson
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, USA
- Materials Research Laboratory, University of California, Santa Barbara, California 93106, USA
- Department of Materials, University of California, Santa Barbara, California 93106, USA
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9
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Wang Q, Lin W, Chou S, Dai P, Huang X. Patterned membranes for improving hydrodynamic properties and mitigating membrane fouling in water treatment: A review. WATER RESEARCH 2023; 236:119943. [PMID: 37054608 DOI: 10.1016/j.watres.2023.119943] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Membrane technologies have been widely applied in water treatment over the past few decades. However, membrane fouling remains a hinderance for the widespread use of membrane processes because it decreases effluent quality and increases operating costs. To mitigate membrane fouling, researchers have been exploring effective anti-fouling strategies. Recently, patterned membranes are gaining attention as a novel non-chemical membrane modification for membrane fouling control. In this paper, we review the research on patterned membranes used in water treatment over the past 20 years. In general, patterned membranes show superior anti-fouling performances, which mainly results from two aspects: hydrodynamic effects and interaction effects. Due to the introduction of diversified topographies onto the membrane surface, patterned membranes yield dramatic improvements on hydrodynamic properties, e.g., shear stress, velocity field and local turbulence, restraining concentration polarization and foulants' deposition on the membrane surface. Besides, the membrane-foulant and foulant-foulant interactions play an important role in the mitigation of membrane fouling. Due to the existence of surface patterns, the hydrodynamic boundary layer is destroyed and the interaction force as well as the contact area between foulants and surface are decreased, which contributes to the fouling suppression. However, there are still some limitations in the research and application of patterned membranes. Future research is suggested to focus on the development of patterned membranes appropriate for different water treatment scenarios, the insights into the interaction forces affected by surface patterns, and the pilot-scale and long-term studies to verify the anti-fouling performances of patterned membranes in practical applications.
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Affiliation(s)
- Qiao Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China
| | - Weichen Lin
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China.
| | - Shuren Chou
- Beijing OriginWater Membrane Technology Co., Ltd, Beijing 101407, China
| | - Pan Dai
- Beijing OriginWater Membrane Technology Co., Ltd, Beijing 101407, China
| | - Xia Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Research and Application Center for Membrane Technology, School of Environment, Tsinghua University, Beijing 100084, China.
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10
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Mohamat R, Bakar SA, Mohamed A, Muqoyyanah M, Othman MHD, Mamat MH, Malek MF, Ahmad MK, Yulkifli Y, Ramakrishna S. Incorporation of graphene oxide/titanium dioxide with different polymer materials and its effects on methylene blue dye rejection and antifouling ability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27207-7. [PMID: 37170051 DOI: 10.1007/s11356-023-27207-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 04/20/2023] [Indexed: 05/13/2023]
Abstract
Exposure of synthetic dye, such as methylene blue (MB), in water bodies led to a serious threat to living things because they are toxic and non-degradable. Amongst the introduced dye removal methods, membrane separation process can be considered a powerful technique for treating dye contamination. However, this method commonly suffered from drawbacks, such as short membrane lifetime, low permeability and selectivity. To overcome these issues, graphene oxide (GO) and titanium dioxide (TiO2) were used as additives to fabricate polyethersulfone (PES)- and polyvinylidene fluoride (PVDF)-based hybrid membranes via non-solvent-induced phase separation method. Prior to membrane fabrication, GO was synthesised via electrochemical exfoliation method assisted by customised triple-tail surfactant. The potential of PES- and PVDF-based hybrid membranes for wastewater treatment has been discussed widely. However, direct comparison between these two polymeric membranes is not critically discussed for MB dye separation application yet. Therefore, this study is aimed at evaluating the performance of different types of polymers (e.g. PES and PVDF) in terms of membrane morphology, properties, dye rejection and antifouling ability. Results showed that the incorporation of GO and TiO2 alters the morphology of the fabricated membranes and affects dye rejection further, as well as their antifouling performance. In contrast with pristine membrane, PES-GO/TiO2 and PVDF-GO/TiO2 possessed high hydrophilicity, as indicated by their low contact angle (67.38° and 62.12°, respectively). Based on this study, PVDF-GO/TiO2 showed higher porosity value (94.88%), permeability (87.32 L/m2hMPa) and MB rejection rate (92.63%), as well as flux recovery ratio value of > 100% as compared with others. Overall, the incorporation of GO and TiO2 with PVDF polymer are proven to be effective hybrid materials of membrane fabrication for dye rejection application in the near future. The polymer material's intrinsic properties can affect the attributes of the fabricated membrane.
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Affiliation(s)
- Rosmanisah Mohamat
- Nanotechnology Research Centre, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia
- Department of Physics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia
| | - Suriani Abu Bakar
- Nanotechnology Research Centre, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia.
- Department of Physics, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia.
| | - Azmi Mohamed
- Nanotechnology Research Centre, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia
| | - Muqoyyanah Muqoyyanah
- Nanotechnology Research Centre, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris, 35900 Tanjung Malim, Perak, Malaysia
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), South Tangerang, Banten, 15314, Indonesia
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Mohamad Hafiz Mamat
- NANO-ElecTronic Centre (NET), Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor, Malaysia
| | - Mohd Firdaus Malek
- NANO-SciTech Lab (NST), Centre for Functional Materials and Nanotechnology, Institute of Science (IOS), Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
| | - Mohd Khairul Ahmad
- Microelectronic and Nanotechnology-Shamsuddin Research Centre (MiNT-SRC), Faculty of Electrical and Electronic Engineering, Universiti Tun Hussein Onn Malaysia, 86400, Parit Raja, Batu Pahat, Johor, Malaysia
| | - Yulkifli Yulkifli
- Physics Department, Faculty of Mathematics and Natural Science, Universitas Negeri Padang, Padang, Indonesia
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #07-08, Singapore, 117575, Singapore
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11
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Li B, Wang S, Loh XJ, Li Z, Chung TS. Closed-loop recyclable membranes enabled by covalent adaptable networks for water purification. Proc Natl Acad Sci U S A 2023; 120:e2301009120. [PMID: 37011185 PMCID: PMC10104506 DOI: 10.1073/pnas.2301009120] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/24/2023] [Indexed: 04/05/2023] Open
Abstract
In the state-of-the-art membrane industry, membranes have linear life cycles and are commonly disposed of by landfill or incineration, sacrificing their sustainability. To date, little or no thought is given in the design phase to the end-of-life management of membranes. For the first time, we have innovated high-performance sustainable membranes, which can be closed-loop recycled after long-term usage for water purification. By synergizing membrane technology and dynamic covalent chemistry, covalent adaptable networks (CANs) with thermally reversible Diels-Alder (DA) adducts were synthesized and employed to fabricate integrally skinned asymmetric membranes via the nonsolvent-induced phase separation technique. Due to the stable and reversible features of CAN, the closed-loop recyclable membranes exhibit excellent mechanical properties and thermal and chemical stabilities as well as separation performance, which are comparable to or even higher than the state-of-the-art nonrecyclable membranes. Moreover, the used membranes can be closed-loop recycled with consistent properties and separation performance by depolymerization to remove contaminants, followed by refabrication into new membranes through the dissociation and reformation of DA adducts. This study may fill in the gaps in closed-loop recycling of membranes and inspire the advancement of sustainable membranes for a green membrane industry.
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Affiliation(s)
- Bofan Li
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology, and Research (A*STAR), Singapore627833, Republic of Singapore
| | - Sheng Wang
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology, and Research (A*STAR), Singapore627833, Republic of Singapore
| | - Xian Jun Loh
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology, and Research (A*STAR), Singapore627833, Republic of Singapore
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology, and Research (A*STAR), Singapore138634, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore, Singapore117576, Republic of Singapore
| | - Zibiao Li
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE), Agency for Science, Technology, and Research (A*STAR), Singapore627833, Republic of Singapore
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology, and Research (A*STAR), Singapore138634, Republic of Singapore
- Department of Materials Science and Engineering, National University of Singapore, Singapore117576, Republic of Singapore
| | - Tai-Shung Chung
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei10607, Taiwan
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12
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Mohammadalipour M, Asadolahi M, Mohammadalipour Z, Behzad T, Karbasi S. Plasma surface modification of electrospun polyhydroxybutyrate (PHB) nanofibers to investigate their performance in bone tissue engineering. Int J Biol Macromol 2023; 230:123167. [PMID: 36621738 DOI: 10.1016/j.ijbiomac.2023.123167] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/18/2022] [Accepted: 01/03/2023] [Indexed: 01/07/2023]
Abstract
Polyhydroxybutyrate (PHB) is a natural-source biopolymer of the polyhydroxyalkanoate (PHA) family. Nanofibrous scaffolds prepared from this biological macromolecule have piqued the interest of researchers in recent years due to their unique properties. Nonetheless, these nanofibers continue to have problems such as low surface roughness and high hydrophobicity. In this research, PHB nanofibers were produced by the electrospinning method. Following that, the surface of nanofibers was modified by atmospheric plasma. Scanning electron microscopy (SEM), water contact angle (WCA), atomic force microscopy (AFM), tensile test, and cell behavior analyses were performed on mats to investigate the performance of treated and untreated samples. The achieved results showed a lower water contact angle (from ≃120° to 43°), appropriate degradation rate (up to ≃20 % weight loss in four months), and outstanding biomineralization (Ca/P ratio of ≃1.86) for the modified sample compared to the neat PHB. Finally, not only the MTT test show better viability of MG63 osteoblast cells, but also Alizarin staining, ALP, and SEM results likewise showed better cell proliferation in the presence of modified mats. These findings back up the claim that plasma surface modification is a quick, environmentally friendly, and low-cost way to improve the performance of nanofibers in bone tissue engineering.
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Affiliation(s)
| | - Mehrdad Asadolahi
- Department of Textile Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Zahra Mohammadalipour
- Department of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Tayebeh Behzad
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Saeed Karbasi
- Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Biomaterials and Tissue Engineering, Isfahan University of Medical Sciences, Isfahan, Iran.
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13
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Setiawan O, Huang YH, Abdi ZG, Hung WS, Chung TS. pH-tunable and pH-responsive polybenzimidazole (PBI) nanofiltration membranes for Li+/Mg2+ separation. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2022.121269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Non-Solvent- and Temperature-Induced Phase Separations of Polylaurolactam Solutions in Benzyl Alcohol as Methods for Producing Microfiltration Membranes. COLLOIDS AND INTERFACES 2023. [DOI: 10.3390/colloids7010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The possibility of obtaining porous films through solutions of polylaurolactam (PA12) in benzyl alcohol (BA) was considered. The theoretical calculation of the phase diagram showed the presence of the upper critical solution temperature (UCST) for the PA12/BA system at 157 °C. The PA12 completely dissolved in BA at higher temperatures, but the resulting solutions underwent phase separation upon cooling down to 120–140 °C because of the PA12’s crystallization. The viscosity of the 10–40% PA12 solutions increased according to a power law but remained low and did not exceed 5 Pa·s at 160 °C. Regardless of the concentration, PA12 formed a dispersed phase when its solutions were cooled, which did not allow for the obtention of strong films. On the contrary, the phase separation of the 20–30% PA12 solutions under the action of a non-solvent (isopropanol) leads to the formation of flexible microporous films. The measurement of the porosity, wettability, strength, permeability, and rejection of submicron particles showed the best results for a porous film produced from a 30% solution by non-solvent-induced phase separation. This process makes it possible to obtain a membrane material with a 240 nm particle rejection of 99.6% and a permeate flow of 1.5 kg/m2hbar for contaminated water and 69.9 kg/m2hbar for pure water.
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15
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Grzetic DJ, Cooper AJ, Delaney KT, Fredrickson GH. Modeling Microstructure Formation in Block Copolymer Membranes Using Dynamical Self-Consistent Field Theory. ACS Macro Lett 2023; 12:8-13. [PMID: 36521059 DOI: 10.1021/acsmacrolett.2c00611] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Block copolymers have attracted recent interest as candidate materials for ultrafiltration membranes, due to their ability to form isoporous integral-asymmetric membranes by the combined processes of self-assembly and nonsolvent-induced phase separation (SNIPS). However, the dependence of surface layer and substructure morphologies on the processing variables associated with SNIPS is not well understood nor is the interplay between microphase and macrophase separation in block copolymers undergoing such coagulation. Here, we use dynamical self-consistent field theory to simulate the microstructure evolution of block copolymer films during SNIPS and find that such films form the desired sponge-like asymmetric porous substructure only if the solvent and nonsolvent have opposite block selectivities and that otherwise they form a dense nonporous microphase-separated film. Our results could have important implications for the choices of solvent and nonsolvent in the processing of block copolymer membranes.
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Affiliation(s)
- Douglas J Grzetic
- Materials Research Laboratory, University of California, Santa Barbara, California93106, United States
| | - Anthony J Cooper
- Department of Physics, University of California, Santa Barbara, California93106, United States
| | - Kris T Delaney
- Materials Research Laboratory, University of California, Santa Barbara, California93106, United States
| | - Glenn H Fredrickson
- Materials Research Laboratory, University of California, Santa Barbara, California93106, United States.,Departments of Chemical Engineering and Materials, University of California, Santa Barbara, California93106, United States
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16
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Fajstavr D, Fajstavrová K, Frýdlová B, Slepičková Kasálková N, Švorčík V, Slepička P. Biopolymer Honeycomb Microstructures: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:772. [PMID: 36676507 PMCID: PMC9863042 DOI: 10.3390/ma16020772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 01/07/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
In this review, we present a comprehensive summary of the formation of honeycomb microstructures and their applications, which include tissue engineering, antibacterial materials, replication processes or sensors. The history of the honeycomb pattern, the first experiments, which mostly involved the breath figure procedure and the improved phase separation, the most recent approach to honeycomb pattern formation, are described in detail. Subsequent surface modifications of the pattern, which involve physical and chemical modifications and further enhancement of the surface properties, are also introduced. Different aspects influencing the polymer formation, such as the substrate influence, a particular polymer or solvent, which may significantly contribute to pattern formation, and thus influence the target structural properties, are also discussed.
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17
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Fang P, Cui S, Song Z, Zhu L, Du M, Yang C. Phase-Field Simulation of the Effect of Coagulation Bath Temperature on the Structure and Properties of Polyvinylidene Fluoride Microporous Membranes Prepared by a Nonsolvent-Induced Phase Separation. ACS OMEGA 2023; 8:180-189. [PMID: 36643498 PMCID: PMC9835624 DOI: 10.1021/acsomega.2c06983] [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: 11/08/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
We used the phase-field model of the existing Nonsolvent Induced Phase Separation (NIPS) method to add the variable of temperature in simulating the changes in the process of membrane formation. The polyvinylidene fluoride (PVDF) membrane system was applied to examine the influence of coagulation bath temperature change on the skin-sublayer of the membrane structure, thereby elucidating the development process of membrane structure under different conditions and shedding light on the most suitable coagulation bath temperature ranges. It was found that as coagulation bath temperature increased, the number of interface pores in the outer skin layer decreased, but the size increased. As a result, it changed from the crack shape to round-hole shape, thus making the pore structure looser. In the sublayer, the mesh support structure was increased, which enhanced the mechanical strength of the membrane. Relevant experiments also verify the effectiveness of the model.
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Affiliation(s)
- Ping Fang
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Shurong Cui
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Zhaoyang Song
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Longtao Zhu
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Mingshan Du
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
| | - Chaoyu Yang
- School
of Urban Planning and Municipal Engineering, Xian Polytechnic University, Xi’an710048, ShanxiChina
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18
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Chen T, Zhao X, Weng Y. Self-assembled polylactic acid (PLA): Synthesis, properties and biomedical applications. Front Chem 2023; 10:1107620. [PMID: 36688028 PMCID: PMC9852896 DOI: 10.3389/fchem.2022.1107620] [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: 11/25/2022] [Accepted: 12/16/2022] [Indexed: 01/09/2023] Open
Abstract
The surface morphology and topography of cell culture substrates play an important role in cell proliferation and growth. Regulation of the surface microstructure allows the development of tissue culture media suitable for different cells. Polylactic acid (PLA) is a biobased and biodegradable (under defined conditions) polymer with low immunogenicity, non-toxicity, and good mechanical properties, which have facilitated their pharmaceutical and biomedical applications. This review summarizes recent advances in the synthesis and self-assembly of surface microstructure based on PLA materials and discusses their biomedical applications such as cell culturing and tissue engineering.
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Affiliation(s)
- Tianyu Chen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China
| | - Xiaoying Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, China,*Correspondence: Xiaoying Zhao, ; Yunxuan Weng,
| | - Yunxuan Weng
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing, China,*Correspondence: Xiaoying Zhao, ; Yunxuan Weng,
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19
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Geleta TA, Maggay IV, Chang Y, Venault A. Recent Advances on the Fabrication of Antifouling Phase-Inversion Membranes by Physical Blending Modification Method. MEMBRANES 2023; 13:membranes13010058. [PMID: 36676865 PMCID: PMC9864519 DOI: 10.3390/membranes13010058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 05/31/2023]
Abstract
Membrane technology is an essential tool for water treatment and biomedical applications. Despite their extensive use in these fields, polymeric-based membranes still face several challenges, including instability, low mechanical strength, and propensity to fouling. The latter point has attracted the attention of numerous teams worldwide developing antifouling materials for membranes and interfaces. A convenient method to prepare antifouling membranes is via physical blending (or simply blending), which is a one-step method that consists of mixing the main matrix polymer and the antifouling material prior to casting and film formation by a phase inversion process. This review focuses on the recent development (past 10 years) of antifouling membranes via this method and uses different phase-inversion processes including liquid-induced phase separation, vapor induced phase separation, and thermally induced phase separation. Antifouling materials used in these recent studies including polymers, metals, ceramics, and carbon-based and porous nanomaterials are also surveyed. Furthermore, the assessment of antifouling properties and performances are extensively summarized. Finally, we conclude this review with a list of technical and scientific challenges that still need to be overcome to improve the functional properties and widen the range of applications of antifouling membranes prepared by blending modification.
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20
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Zhang P, Wang Z, Wang ZG. Conformation Transition of a Homopolymer Chain in Binary Mixed Solvents. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Pengfei Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-Dimension Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zheng Wang
- School of Physics, Nankai University, Tianjin 300071, China
| | - Zhen-Gang Wang
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
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21
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Alsebaeai MK, Ahmad AL, Seng OB. Potential effects of nano‐fumed silica particles (NFS)/PVDF mixed matrix hollow fiber membrane on the performance of direct contact membrane distillation. ASIA-PAC J CHEM ENG 2022. [DOI: 10.1002/apj.2859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mohammed Karama Alsebaeai
- School of Chemical Engineering, Engineering Campus Universiti Sains Malaysia Nibong Tebal Penang 14300 Malaysia
- Department of Chemical Engineering, Faculty of Engineering and Petroleum Hadhramout University Hadhramout Yemen
| | - Abdul Latif Ahmad
- School of Chemical Engineering, Engineering Campus Universiti Sains Malaysia Nibong Tebal Penang 14300 Malaysia
| | - Ooi Boon Seng
- School of Chemical Engineering, Engineering Campus Universiti Sains Malaysia Nibong Tebal Penang 14300 Malaysia
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22
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Effect of Polyvinylidene Fluoride Membrane Production Conditions on Its Structure and Performance Characteristics. Polymers (Basel) 2022; 14:polym14235283. [PMID: 36501681 PMCID: PMC9736028 DOI: 10.3390/polym14235283] [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: 11/10/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Poly (vinylidene fluoride) membranes were prepared by freeze-casting. The effects of PVDF concentration, and freezing temperature on the morphology, crystallization, and performance of prepared membranes were examined. Polymer concentration was varied from 10 to 25 wt%. The freezing temperature was varied from -5 to -25 °C. Dimethyl sulfoxide (DMSO) and distilled water were used as solvents and non-solvents, respectively. The first step of this study was devoted to estimating the optimal concentration of PVDF solution in DMSO. Membranes prepared at different ratios were characterized using physical and mechanical characteristics and porosity. The second step was to optimize the time required for the production of the membranes. In the third step, it was shown that the freezing temperature had a remarkable effect on the morphology of the membranes: as the temperature decreases, there is a transition from spherulite structures to interconnected pores. It was shown that the diversity in the pore pattern for PVDF affects remarkably the water permeability through the polymer membrane. During the monitoring of the spread of crystallized areas during the formation of the membrane, it was found that the crystallization of the solvent begins at localized points of the microscale, further crystallized areas spread radially or unevenly along the surface of the solution, forming contact borders, which can lead to changes in the properties of the membrane in its area.
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23
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Synthesis of phenolphthalein/bisphenol A‐based poly(arylene ether nitrile) copolymers: Preparation and properties of films. J Appl Polym Sci 2022. [DOI: 10.1002/app.53407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Solvent-resistant porous membranes using poly(ether—ether ketone): preparation and application. Front Chem Sci Eng 2022. [DOI: 10.1007/s11705-022-2221-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Wang H, Zhao J, Li Y, Cao Y, Zhu Z, Wang M, Zhang R, Pan F, Jiang Z. Aqueous Two-Phase Interfacial Assembly of COF Membranes for Water Desalination. NANO-MICRO LETTERS 2022; 14:216. [PMID: 36352333 PMCID: PMC9646690 DOI: 10.1007/s40820-022-00968-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 10/18/2022] [Indexed: 05/15/2023]
Abstract
Aqueous two-phase system features with ultralow interfacial tension and thick interfacial region, affording unique confined space for membrane assembly. Here, for the first time, an aqueous two-phase interfacial assembly method is proposed to fabricate covalent organic framework (COF) membranes. The aqueous solution containing polyethylene glycol and dextran undergoes segregated phase separation into two water-rich phases. By respectively distributing aldehyde and amine monomers into two aqueous phases, a series of COF membranes are fabricated at water-water interface. The resultant membranes exhibit high NaCl rejection of 93.0-93.6% and water permeance reaching 1.7-3.7 L m-2 h-1 bar-1, superior to most water desalination membranes. Interestingly, the interfacial tension is found to have pronounced effect on membrane structures. The appropriate interfacial tension range (0.1-1.0 mN m-1) leads to the tight and intact COF membranes. Furthermore, the method is extended to the fabrication of other COF and metal-organic polymer membranes. This work is the first exploitation of fabricating membranes in all-aqueous system, confering a green and generic method for advanced membrane manufacturing.
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Affiliation(s)
- Hongjian Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China
| | - Jiashuai Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China
| | - Yang Li
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Science, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Yu Cao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China
| | - Ziting Zhu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China
| | - Meidi Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China
| | - Runnan Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou, 350207, People's Republic of China
| | - Fusheng Pan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China.
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou, 350207, People's Republic of China.
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People's Republic of China.
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, People's Republic of China.
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City, Fuzhou, 350207, People's Republic of China.
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Ma S, Hou Y, Hao J, Lin C, Zhao J, Sui X. Well-Defined Nanostructures by Block Copolymers and Mass Transport Applications in Energy Conversion. Polymers (Basel) 2022; 14:polym14214568. [PMID: 36365562 PMCID: PMC9655174 DOI: 10.3390/polym14214568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 11/27/2022] Open
Abstract
With the speedy progress in the research of nanomaterials, self-assembly technology has captured the high-profile interest of researchers because of its simplicity and ease of spontaneous formation of a stable ordered aggregation system. The self-assembly of block copolymers can be precisely regulated at the nanoscale to overcome the physical limits of conventional processing techniques. This bottom-up assembly strategy is simple, easy to control, and associated with high density and high order, which is of great significance for mass transportation through membrane materials. In this review, to investigate the regulation of block copolymer self-assembly structures, we systematically explored the factors that affect the self-assembly nanostructure. After discussing the formation of nanostructures of diverse block copolymers, this review highlights block copolymer-based mass transport membranes, which play the role of “energy enhancers” in concentration cells, fuel cells, and rechargeable batteries. We firmly believe that the introduction of block copolymers can facilitate the novel energy conversion to an entirely new plateau, and the research can inform a new generation of block copolymers for more promotion and improvement in new energy applications.
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27
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Fine regulation on hour-glass like spongy structure of polyphenylsulfone (PPSU)/sulfonated polysulfone (SPSf) microfiltration membranes via a vapor-liquid induced phase separation (V-LIPS) technique. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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28
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Mousa HM, Fahmy HS, Ali GAM, Abdelhamid HN, Ateia M. Membranes for Oil/Water Separation: A Review. ADVANCED MATERIALS INTERFACES 2022; 9:10.1002/admi.202200557. [PMID: 37593153 PMCID: PMC10428143 DOI: 10.1002/admi.202200557] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Indexed: 08/19/2023]
Abstract
Recent advancements in separation and membrane technologies have shown a great potential in removing oil from wastewaters effectively. In addition, the capabilities have improved to fabricate membranes with tunable properties in terms of their wettability, permeability, antifouling, and mechanical properties that govern the treatment of oily wastewaters. Herein, authors have critically reviewed the literature on membrane technology for oil/water separation with a specific focus on: 1) membrane properties and characterization, 2) development of various materials (e.g., organic, inorganic, and hybrid membranes, and innovative materials), 3) membranes design (e.g., mixed matrix nanocomposite and multilayers), and 4) membrane fabrication techniques and surface modification techniques. The current challenges and future research directions in materials and fabrication techniques for membrane technology applications in oil/water separation are also highlighted. Thus, this review provides helpful guidance toward finding more effective, practical, and scalable solutions to tackle environmental pollution by oils.
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Affiliation(s)
- Hamouda M Mousa
- Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena 83523, Egypt
| | - Hanan S Fahmy
- Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena 83523, Egypt
| | - Gomaa A M Ali
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Hani Nasser Abdelhamid
- Advanced Multifunctional Materials Laboratory, Department of Chemistry, Faculty of Science, Assiut University, Assiut 71515, Egypt
| | - Mohamed Ateia
- United States Environmental Protection Agency, Center for Environmental Solutions & Emergency Response, Cincinnati, OH 45220, USA
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29
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Maggay IV, Yu ML, Wang DM, Chiang CH, Chang Y, Venault A. Strategy to prepare skin-free and macrovoid-free polysulfone membranes via the NIPS process. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120597] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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30
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Lewis J, Alshami A, Talukder M, Owoade A, Baker K, Onaizi S. Agglomeration tendency and activated carbon concentration effects on
activated carbon‐polysulfone
mixed matrix membrane performance: A design of experiment formulation study. J Appl Polym Sci 2022. [DOI: 10.1002/app.52875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jeremy Lewis
- University of North Dakota Grand Forks North Dakota USA
- Los Alamos National Lab Los Alamos New Mexico USA
| | - Ali Alshami
- University of North Dakota Grand Forks North Dakota USA
| | | | | | - Kelsey Baker
- University of North Dakota Grand Forks North Dakota USA
| | - Sagheer Onaizi
- Chemical Engineering‐ King Fahd University of Petroleum and Minerals Dhahran KSA
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31
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Zhai W, Yu H, Chen H, Li L, Li D, Zhang Y, He T. Stable fouling resistance of polyethylene (PE) separator membrane via oxygen plasma plus zwitterion grafting. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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32
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Plasticization-enhanced trimethylbenzene functionalized polyethersulfone hollow fiber membranes for propylene and propane separation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120293] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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33
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Bee SL, Hamid ZAA. Asymmetric resorbable-based dental barrier membrane for periodontal guided tissue regeneration and guided bone regeneration: A review. J Biomed Mater Res B Appl Biomater 2022; 110:2157-2182. [PMID: 35322931 DOI: 10.1002/jbm.b.35060] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 02/28/2022] [Accepted: 03/12/2022] [Indexed: 12/24/2022]
Abstract
Guided tissue regeneration (GTR) and guided bone regeneration (GBR) are two common dental regenerative treatments targeted at reconstructing damaged periodontal tissue and bone caused by periodontitis. During GTR/GBR treatment, a barrier membrane is placed in the interface between the soft tissue and the periodontal defect to inhibit soft tissue ingrowth and creating a space for the infiltration of slow-growing bone cells into the defect site. Recently, asymmetric resorbable-based barrier membrane has received a considerable attention as a new generation of GTR/GBR membrane. Despite numerous literatures about asymmetric-based membrane that had been published, there is lacks comprehensive review on asymmetric barrier membrane that particularly highlight the importance of membrane structure for periodontal regeneration. In this review, we systematically cover the latest development and advancement of various kinds of asymmetric barrier membranes used in periodontal GTR/GBR application. Herein, the ideal requirements for constructing a barrier membrane as well as the rationale behind the asymmetric design, are firstly presented. Various innovative methods used in fabricating asymmetric barrier membrane are being further discussed. Subsequently, the application and evaluation of various types of asymmetric barrier membrane used for GTR/GBR are compiled and extensively reviewed based on the recent literatures reported. Based on the existing gap in this field, the future research directions of asymmetric resorbable-based barrier membrane such as its combination potential with bone grafts, are also presented.
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Affiliation(s)
- Soo-Ling Bee
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia
| | - Zuratul Ain Abdul Hamid
- School of Materials and Mineral Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Penang, Malaysia
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34
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Manholi S, Athiyanathil S. Poly (ε‐caprolactone)‐based porous membranes for filtration applications—effect of solvents on precipitation kinetics, performance, and morphology. J Appl Polym Sci 2022. [DOI: 10.1002/app.51720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Smitha Manholi
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Calicut India
| | - Sujith Athiyanathil
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Calicut India
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35
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Qian X, Ostwal M, Asatekin A, Geise GM, Smith ZP, Phillip WA, Lively RP, McCutcheon JR. A critical review and commentary on recent progress of additive manufacturing and its impact on membrane technology. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.120041] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Tsai CY, Liu YL. Building up ion-conduction pathways in solid polymer electrolytes through surface and pore functionalization of PVDF porous membranes with ionic conductors. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Dmitrieva ES, Anokhina TS, Novitsky EG, Volkov VV, Borisov IL, Volkov AV. Polymeric Membranes for Oil-Water Separation: A Review. Polymers (Basel) 2022; 14:polym14050980. [PMID: 35267801 PMCID: PMC8912433 DOI: 10.3390/polym14050980] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 02/01/2023] Open
Abstract
This review is devoted to the application of bulk synthetic polymers such as polysulfone (PSf), polyethersulfone (PES), polyacrylonitrile (PAN), and polyvinylidene fluoride (PVDF) for the separation of oil-water emulsions. Due to the high hydrophobicity of the presented polymers and their tendency to be contaminated with water-oil emulsions, methods for the hydrophilization of membranes based on them were analyzed: the mixing of polymers, the introduction of inorganic additives, and surface modification. In addition, membranes based on natural hydrophilic materials (cellulose and its derivatives) are given as a comparison.
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Affiliation(s)
| | - Tatyana S. Anokhina
- Correspondence: ; Tel.: +7-(495)-647-59-27 (ext. 202); Fax: +7-(495)-633-85-20
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38
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O’Connell R, Sharratt WN, Aelmans NJJ, Higgins JS, Cabral JT. SANS Study of PPPO in Mixed Solvents and Impact on Polymer Nanoprecipitation. Macromolecules 2022; 55:1050-1059. [PMID: 35431332 PMCID: PMC9007525 DOI: 10.1021/acs.macromol.1c02030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 01/03/2022] [Indexed: 11/29/2022]
Abstract
We investigate the conformation of poly(2,6-diphenyl-p-phenylene oxide) (PPPO) in good and mixed solvents by small-angle neutron scattering (SANS) across its ternary phase diagram. Dichloromethane was selected as a "good" solvent and heptane as a "poor" solvent whose addition eventually induces demixing and polymer precipitation. Below the overlap concentration c*, the polymer conformation is found to be well described by the polymer-excluded volume model and above by the Ornstein-Zernike expression with a correlation length ξ which depends on the concentration and solvent/nonsolvent ratio. We quantify the decrease in polymer radius of gyration R g , increase in ξ, and effective χ parameter approaching the phase boundary. Upon flash nanoprecipitation, the characteristic particle radius (estimated by scanning electron microscopy, SEM) is found to scale with polymer concentration as well as with nonsolvent content. Significantly, the solution volume per precipitated particle remains nearly constant at all polymer concentrations. Overall, our findings correlate ternary solution structure with the fabrication of polymer nanoparticles by nonsolvent-induced phase separation and precipitation.
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Affiliation(s)
- Róisín
A. O’Connell
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
| | - William N. Sharratt
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
| | | | - Julia S. Higgins
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
| | - João T. Cabral
- Department
of Chemical Engineering, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
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39
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Fernández-Rico C, Sai T, Sicher A, Style RW, Dufresne ER. Putting the Squeeze on Phase Separation. JACS AU 2022; 2:66-73. [PMID: 35098222 PMCID: PMC8790737 DOI: 10.1021/jacsau.1c00443] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 05/06/2023]
Abstract
Phase separation is a ubiquitous process and finds applications in a variety of biological, organic, and inorganic systems. Nature has evolved the ability to control phase separation to both regulate cellular processes and make composite materials with outstanding mechanical and optical properties. Striking examples of the latter are the vibrant blue and green feathers of many bird species, which are thought to result from an exquisite control of the size and spatial correlations of their phase-separated microstructures. By contrast, it is much harder for material scientists to arrest and control phase separation in synthetic materials with such a high level of precision at these length scales. In this Perspective, we briefly review some established methods to control liquid-liquid phase separation processes and then highlight the emergence of a promising arrest method based on phase separation in an elastic polymer network. Finally, we discuss upcoming challenges and opportunities for fabricating microstructured materials via mechanically controlled phase separation.
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40
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Wen X, He C, Hai Y, Ma R, Sun J, Yang X, Qi Y, Wei H, Chen J. Fabrication of an antifouling PES ultrafiltration membrane via blending SPSF. RSC Adv 2022; 12:1460-1470. [PMID: 35425199 PMCID: PMC8979071 DOI: 10.1039/d1ra06354e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 11/16/2021] [Indexed: 11/26/2022] Open
Abstract
Sulfonated polysulfone (SPSF) with different sulfonation degrees (10%, 30%, and 50%) was added to polyethersulfone (PES) to improve the separation and antifouling performance of polyethersulfone ultrafiltration membranes. The PES/SPSF blend ultrafiltration membrane was prepared by the non-solvent induced phase inversion method (NIPS), and the effect of sulfonation degree on the ultrafiltration performance was studied. The compatibility of SPSF and PES was calculated by the group contribution method, and confirmed by differential scanning calorimetry (DSC). The morphology and surface roughness of the membrane were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM), the chemical composition of the membrane was analyzed by X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy (FTIR), and the permeability and anti-fouling performance of the blend membrane were studied through filtration experiments. The research shows that the flux and anti-fouling performance of the blend membrane have been improved after adding SPSF. When the sulfonation degree of the SPSF is 30%, the pure water flux of the blend membrane can reach 530 L m−2 h−1, the rejection rate of humic acid (HA) is 93%, the flux recovery rate of HA increases from 69.23% to 79.17%, and the flux recovery rate of BSA increases from 72.56% to 83%. The chemical structures of (a) PES and (b) SPSF.![]()
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Affiliation(s)
- Xin Wen
- College of Geology and Environment, Xi'an University of Science and Technology Xi'an 710054 China
| | - Can He
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Yuyan Hai
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Rui Ma
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Jianyu Sun
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Xue Yang
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Yunlong Qi
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Hui Wei
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
| | - Jingyun Chen
- National Institute of Clean-and-Low-Carbon Energy Beijing 102211 China
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41
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Liu H, Liao X, Ren Y. Effects of additive dosage and coagulation bath pH on amphoteric fluorocarbon special surfactant (FS-50) blend PVDF membranes. CHEMOSPHERE 2022; 287:132212. [PMID: 34547558 DOI: 10.1016/j.chemosphere.2021.132212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 08/01/2021] [Accepted: 09/07/2021] [Indexed: 06/13/2023]
Abstract
Amphiphilic copolymers containing hydrophilic and hydrophobic blocks represented by surfactants have proven to be more effective for modifying membranes than hydrophilic copolymers. However, studies on the effects of additive and coagulation bath pH on the morphology and properties of surfactant-modified membranes have rarely been reported. Hence, this study aims to investigate the effects of the additive dosage and the coagulation bath pH on the mechanisms of phase inversion and performance improvement of amphoteric fluorocarbon special surfactant (FS-50) blended PVDF membranes. It was observed that the pure water flux increased from 114.68 LMH/bar of the original membrane M0 to 205.02 LMH/bar of the blend membrane M1, and then to 615.88 LMH/bar of the coagulation-bath-regulated membrane MPH9 with a high BSA rejection rate of 90.86%, showing a two-stage jump. The addition of FS-50 promoted the instantaneous phase inversion of the membrane, allowing the blend membrane to exhibit a higher proportion of pore characteristics and stronger permeability. After that, the mechanisms of the membrane phase inversion process affected by the coagulation bath pH were interpreted according to the pH-response characteristics of FS-50 in terms of charge repulsion effect and compressed double-electron layer effect. Furthermore, the cross-sectional morphology and the surface structure of the membrane prepared in acidic and alkaline coagulation baths were significantly affected by the pH of the coagulation bath, exhibiting different features. For one, the porosity of the membranes gradually decreased as the acidity and alkalinity of the coagulation bath increased, and the membrane MPH9 exhibited both maximum surface and overall porosity. For another, the coagulation bath pH did not negatively affect the contact angle, surface roughness and tensile strength of the membranes. Overall, adjusting the dosage of FS-50 and the pH of the coagulation bath is a promising approach to greatly enhance membrane performance.
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Affiliation(s)
- Hailong Liu
- School of Environmental Science and Resources, Shanxi University, No. 92 Wucheng Road, Taiyuan, 030006, China.
| | - Xiangjun Liao
- School of Environmental Science and Resources, Shanxi University, No. 92 Wucheng Road, Taiyuan, 030006, China
| | - Yuxia Ren
- School of Environmental Science and Resources, Shanxi University, No. 92 Wucheng Road, Taiyuan, 030006, China
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42
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Crosslinked polyimide asymmetric membranes as thermally-stable separators with self-protective layers and inhibition of lithium dendrite growth for lithium metal battery. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119816] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Tang Y, Lin Y, Ford DM, Qian X, Cervellere MR, Millett PC, Wang X. A review on models and simulations of membrane formation via phase inversion processes. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119810] [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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44
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Tang Y, Lin Y, Ma W, Wang X. A review on microporous polyvinylidene fluoride membranes fabricated via thermally induced phase separation for MF/UF application. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119759] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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45
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Januário EFD, Vidovix TB, Beluci NDCL, Paixão RM, Silva LHBRD, Homem NC, Bergamasco R, Vieira AMS. Advanced graphene oxide-based membranes as a potential alternative for dyes removal: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 789:147957. [PMID: 34052486 DOI: 10.1016/j.scitotenv.2021.147957] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/02/2021] [Accepted: 05/17/2021] [Indexed: 05/23/2023]
Abstract
Graphene oxide (GO) is one of the most well-known graphene derivatives which, due to its outstanding chemical, electrical and optical properties as well as its high oxygen content, has been recently applied in several fields such as in the construction of sensors, as antimicrobial agent for biomedical applications, as well as nanofiller material for membranes applied in wastewater treatment. In this last-mentioned field, the synthesis and functionalization of membranes with GO has proven to improve the performance of membranes applied in the treatment of wastewater containing dyes, regarding antifouling behavior, selectivity and flux. In this review, an overview of water pollution caused by effluents containing synthetic dyes, the advantages and limitations of GO-based membranes and the latest research advances on the use of GO-based membranes for dyes removal, including its impact on membrane performance, are discussed in detail. The future panorama of the applicability of GO-based membranes for the treatment of water contaminated by dyes is also provided.
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Affiliation(s)
| | - Taynara Basso Vidovix
- State University of Maringá, Department of Chemical Engineering, Maringa 87020-900, Paraná, Brazil
| | | | - Rebecca Manesco Paixão
- State University of Maringá, Department of Chemical Engineering, Maringa 87020-900, Paraná, Brazil
| | | | - Natália Cândido Homem
- University of Minho, Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, 4800-058 Guimarães, Portugal.
| | - Rosangela Bergamasco
- State University of Maringá, Department of Chemical Engineering, Maringa 87020-900, Paraná, Brazil
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46
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Zhang X, Wang S, Han S, Ouyang X, Ma N, Wei H, Zhang X. The rapid and controllable fabrication of large-scale and highly ordered micro-honeycomb arrays induced by nonsolvent phase separation. SOFT MATTER 2021; 17:8078-8085. [PMID: 35226029 DOI: 10.1039/d1sm00619c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Structures that are highly ordered in nature show unique light propagation abilities. Among them, micro-honeycomb arrays are attractive owing to their advantages relating to the collection of light or enlarging the viewing angle and, also, owing to their potential applications in precision optics. Inspired by the natural phenomenon of droplet condensation on a cold surface, breath figure self-assembly has been a common approach used to fabricate such ordered micro-honeycomb arrays. However, the harsh preparation conditions and specific polymer architecture required have limited the widespread application of this approach. In this work, by using a commercial linear homopolymer and introducing its nonsolvent, we successfully fabricated uniform micro-honeycomb arrays on a large scale in just seconds and at ambient humidity. The morphology of the structures can be easily tuned via controlling the preparation conditions. Furthermore, high fill-factor convex micro-lenses were prepared based on the as-prepared concave micro-honeycomb arrays as templates through a simple replication process. They demonstrate properties such as clear multiple image presentation and light diffraction. They can also assist the strong scattering of light, which enhances the fluorescent intensity by more than 10%. This method is envisaged as a potential candidate to replace breath figure self-assembly for micro-honeycomb arrays in a low-cost and high-efficiency manner under mild conditions.
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Affiliation(s)
- Xiaoyu Zhang
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
| | - Shuya Wang
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
| | - Shengpeng Han
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
| | - Xiao Ouyang
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
| | - Ning Ma
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
| | - Hao Wei
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
| | - Xinyue Zhang
- College of Material Science and Chemical Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, 150001, China.
- Qingdao Innovation and Development Center, Harbin Engineering University, Qingdao, 266400, China
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47
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Barzegar T, Hassanajili S. Fabrication and characterization of dual layer
PEBAX‐SiO
2
/polyethersulfone nanocomposite membranes for separation of
CO
2
/
CH
4
gases. J Appl Polym Sci 2021. [DOI: 10.1002/app.51624] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tahmineh Barzegar
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering Shiraz University Shiraz Iran
| | - Shadi Hassanajili
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering Shiraz University Shiraz Iran
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48
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Cao Y, Mi X, Li X, Wang B. Defect Engineering in Metal‒Organic Frameworks as Futuristic Options for Purification of Pollutants in an Aqueous Environment. Front Chem 2021; 9:673738. [PMID: 34485241 PMCID: PMC8415362 DOI: 10.3389/fchem.2021.673738] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 04/26/2021] [Indexed: 11/16/2022] Open
Abstract
Clean water scarcity is becoming an increasingly important worldwide issue. The water treatment industry is demanding the development of novel effective materials. Defect engineering in nanoparticles is among the most revolutionary of technologies. Because of their high surface area, structural diversity, and tailorable ability, Metal‒Organic Frameworks (MOFs) can be used for a variety of purposes including separation, storage, sensing, drug delivery, and many other issues. The application in wastewater treatment associated with water stable MOF‒based materials has been an emerging research topic in recent decades. Defect engineering is a sophisticated technique used to manufacture defects and to change the geometric framework of target compounds. Since MOFs have a series of designable structures and active sites, tailoring properties in MOFs by defect engineering is a novel concept. Defect engineering can excavate hidden active sites in MOFs, which can lead to better performance in many fields. Therefore, this technology will open new opportunities in water purification processes. However, there has been little effort to comprehensively discuss this topic. In this review, we provide an overview of the development of defect engineered MOFs for water purification processes. Furthermore, we discuss the potential applications of defect engineered materials.
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Affiliation(s)
| | | | - Xiang Li
- School of Chemistry, China School of Chemistry, Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, China
| | - Bo Wang
- School of Chemistry, China School of Chemistry, Advanced Research Institute of Multidisciplinary Science, Beijing Institute of Technology, Beijing, China
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49
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Galdino AL, Oliveira JCA, Magalhaes ML, Lucena SMP, Liu D, Huang T, Zhu L. Prediction of the phenol removal capacity from water by adsorption on activated carbon. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:135-143. [PMID: 34280160 DOI: 10.2166/wst.2021.202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
High-performance sulfonated polysulfone (SPSf) mixed-matrix membranes (MMMs) were fabricated via a nonsolvent-induced phase separation (NIPS) method using zeolitic imidazolate frameworks-67 (ZIF-67) as a crosslinker. Acid-base crosslinking occurred between the sulfonic acid groups of SPSf and the tertiary amine groups of the embedded ZIF-67, which improved the dispersion of ZIF-67 and simultaneously improved the membrane strzcture and permselectivity. The dispersion of ZIF-67 in the MMMs and the acid-base crosslinking reaction were verified by energy-dispersive X-ray spectroscopy (EDX), X-ray diffractometry (XRD), Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). The pore structure analysis of MMMs indicated that filling ZIF-67 into SPSf enhanced the average surface pore sizes, surface porosities and more micropore in cross-sections. The crossflow filtrations showed the MMMs have higher pure water fluxes (57 to 111 L m-2 h-1) than the SPSf membrane (55 L m-2 h-1) but also higher bovine serum albumin (BSA) rejection rate of 93.9-95.8%, a model protein foulant. The MMMs showed a higher water contact angle than the SPSf membrane due to the addition of hydrophobic ZIF-67 and acid-base crosslinking, and also maintained high thermal stability evidenced by the thermogravimetric analysis (TGA) results. At the optimal ZIF-67 concentration of 0.3 wt%, the water flux of the SPSf-Z67-0.3 membrane was 82 L m-2 h-1 with a high BSA rejection rate of 95.3% at 0.1 MPa and better antifouling performance (FRR = 70%).
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Affiliation(s)
- Ana Luísa Galdino
- Laboratory of Modeling and 3D Visualization, GPSA, Department of Chemical Engineering, Universidade Federal do Ceará, Campus do Pici, bl 709, Fortaleza, CE, 60455-760, Brazil
| | - José C A Oliveira
- Laboratory of Modeling and 3D Visualization, GPSA, Department of Chemical Engineering, Universidade Federal do Ceará, Campus do Pici, bl 709, Fortaleza, CE, 60455-760, Brazil
| | - Madson L Magalhaes
- Laboratory of Modeling and 3D Visualization, GPSA, Department of Chemical Engineering, Universidade Federal do Ceará, Campus do Pici, bl 709, Fortaleza, CE, 60455-760, Brazil
| | - Sebastião M P Lucena
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Di Liu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Tingting Huang
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Lei Zhu
- School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu, Anhui 241000, China
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50
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Guo L, Wang Y, Steinhart M. Porous block copolymer separation membranes for 21st century sanitation and hygiene. Chem Soc Rev 2021; 50:6333-6348. [PMID: 33890584 DOI: 10.1039/d0cs00500b] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Removing hazardous particulate and macromolecular contaminants as well as viruses with sizes from a few nm up to the 100 nm-range from water and air is crucial for ensuring sufficient sanitation and hygiene for a growing world population. To this end, high-performance separation membranes are needed that combine high permeance, high selectivity and sufficient mechanical stability under operating conditions. However, design features of separation membranes enhancing permeance reduce selectivity and vice versa. Membrane configurations combining high permeance and high selectivity suffer in turn from a lack of mechanical robustness. These problems may be tackled by using block copolymers (BCPs) as a material platform for the design of separation membranes. BCPs are macromolecules that consist of two or more chemically distinct block segments, which undergo microphase separation yielding a wealth of ordered nanoscopic domain structures. Various methods allow the transformation of these nanoscopic domain structures into customized nanopore systems with pore sizes in the sub-100 nm range and with narrow pore size distributions. This tutorial review summarizes design strategies for nanoporous state-of-the-art BCP separation membranes, their preparation, their device integration and their use for water purification.
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Affiliation(s)
- Leiming Guo
- Institut für Chemie neuer Materialien and CellNanOs, Universität Osnabrück, Barbarastr. 7, 49076 Osnabrück, Germany.
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