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Deac A, Luebbert C, Qi Q, Courtney RM, Indulkar AS, Gao Y, Zhang GGZ, Sadowski G, Taylor LS. Dissolution Mechanisms of Amorphous Solid Dispersions: Application of Ternary Phase Diagrams To Explain Release Behavior. Mol Pharm 2024; 21:1900-1918. [PMID: 38469754 DOI: 10.1021/acs.molpharmaceut.3c01179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
The use of amorphous solid dispersions (ASDs) in commercial drug products has increased in recent years due to the large number of poorly soluble drugs in the pharmaceutical pipeline. However, the release behavior of ASDs is complex and remains not well understood. Often, the drug release from ASDs is rapid and complete at lower drug loadings (DLs) but becomes slow and incomplete at higher DLs. The DL where release becomes hindered is termed the limit of congruency (LoC). Currently, there are no approaches to predict the LoC. However, recent findings show that one potential cause leading to the LoC is a change in phase morphology after water-induced phase separation at the ASD/solution interface. In this study, the phase behavior of ASDs in contact with aqueous solutions was described thermodynamically by constructing experimental and computational ternary phase diagrams, and these were used to predict morphology changes and ultimately the LoC. Experimental ternary phase diagrams were obtained by equilibrating ASD/water mixtures over time. Computational ternary phase diagrams were obtained by Perturbed Chain Statistical Associating Fluid Theory (PC-SAFT). The morphology of the hydrophobic phase was studied with fluorescence confocal microscopy. It was demonstrated that critical point (plait point) composition approximately corresponded to the ASD DL, where the hydrophobic phase, formed during phase separation, became interconnected and hindered ASD release. This work provides mechanistic insights into the ASD release behavior and highlights the potential of in silico ASD design using phase diagrams.
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Affiliation(s)
- Alexandru Deac
- Department of Industrial and Molecular Pharmaceutics, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | | | - Qingqing Qi
- Department of Industrial and Molecular Pharmaceutics, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Reagan M Courtney
- Department of Industrial and Molecular Pharmaceutics, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Anura S Indulkar
- Development Sciences, Research and Development, AbbVie Inc., North Chicago, Illinois 60064, United States
| | - Yi Gao
- Development Sciences, Research and Development, AbbVie Inc., North Chicago, Illinois 60064, United States
| | - Geoff G Z Zhang
- Development Sciences, Research and Development, AbbVie Inc., North Chicago, Illinois 60064, United States
| | | | - Lynne S Taylor
- Department of Industrial and Molecular Pharmaceutics, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
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2
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Liu Y, Tao J, Mo Y, Bao R, Pan C. Ultrasensitive Touch Sensor for Simultaneous Tactile and Slip Sensing. Adv Mater 2024:e2313857. [PMID: 38335503 DOI: 10.1002/adma.202313857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/05/2024] [Indexed: 02/12/2024]
Abstract
Touch is a general term to describe mechanical stimuli. It is extremely difficult to develop touch sensors that can detect different modes of contact forces due to their low sensitivity and data decoupling. Simultaneously conducting tactile and slip sensing presents significant challenges for the design, structure, and performance of sensors. In this work, a highly sensitive sandwich-structured sensor is achieved by exploiting the porosity and compressive modulus of the sensor's functional layer materials. The sensor shows an ultra-high sensitivity of 1167 kPa-1 and a low-pressure detection limit of 1.34 Pa due to its considerably low compression modulus of 23.8 Pa. Due to this ultra-high sensitivity, coupled with spectral analysis, it allows for dual-mode detection of both tactile and slip sensations simultaneously. This novel fabrication strategy and signal analysis method provides a new direction for the development of tactile/slip sensors.
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Affiliation(s)
- Yue Liu
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
| | - Juan Tao
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
| | - Yepei Mo
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
| | - Rongrong Bao
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
- Institute of Atomic Manufacturing, Beihang University, Beijing, 100191, P. R. China
| | - Caofeng Pan
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, China
- Institute of Atomic Manufacturing, Beihang University, Beijing, 100191, P. R. China
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Chen T, Zhang H, Zheng G, Xue Q, Huang Z, Zhou Y, Wang S. A High-Strength Solid Oxide Fuel Cell Supported by an Ordered Porous Cathode Membrane. Membranes (Basel) 2024; 14:44. [PMID: 38392671 PMCID: PMC10889947 DOI: 10.3390/membranes14020044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 01/28/2024] [Accepted: 02/02/2024] [Indexed: 02/24/2024]
Abstract
The phase inversion tape casting has been widely used to fabricate open straight porous supports for solid oxide fuel cells (SOFCs), which can offer better gas transmission and minimize the concentration polarization. However, the overall weak strength of the macro-porous structure still limits the applications of these SOFCs. In this work, a novel SOFC supported by an ordered porous cathode membrane with a four-layer configuration containing a finger-like porous 3 mol% yttria- stabilized zirconia (3YSZ)-La0.8Sr0.2Co0.6Fe0.4O3-δ (LSCF) catalyst, porous 8 mol% yttria-stabilized zirconia (8YSZ)-LSCF catalyst, and dense 8YSZ porous 8YSZ-NiO catalyst is successfully prepared by the phase inversion tape casting, dip-coating, co-sintering, and impregnation process. The flexural strength of the open straight porous 3YSZ membrane is as high as 131.95 MPa, which meets the requirement for SOFCs. The cathode-supported single cell shows a peak power density of 540 mW cm-2 at 850 °C using H2 as the fuel. The degradation mechanism of the SOFC is investigated by the combination of microstructure characterization and distribution of relaxation times (DRT) analysis.
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Affiliation(s)
- Ting Chen
- School of Chemistry and Chemical Engineering, China University of Mining and Technology, 1 Daxue Street, Xuzhou 221116, China
| | - Huilin Zhang
- School of Chemistry and Chemical Engineering, China University of Mining and Technology, 1 Daxue Street, Xuzhou 221116, China
| | - Guozhu Zheng
- School of Chemistry and Chemical Engineering, China University of Mining and Technology, 1 Daxue Street, Xuzhou 221116, China
| | - Qiang Xue
- School of Chemistry and Chemical Engineering, China University of Mining and Technology, 1 Daxue Street, Xuzhou 221116, China
| | - Zuzhi Huang
- Jiangxi Key Laboratory of Surface Engineering, School of Materials and Energy, Jiangxi Science and Technology Normal University, Nanchang 330013, China
| | - Yucun Zhou
- Beijing Huairou Laboratory, Beijing 101400, China
| | - Shaorong Wang
- School of Chemistry and Chemical Engineering, China University of Mining and Technology, 1 Daxue Street, Xuzhou 221116, China
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4
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Sobel D, Ramasubramanian B, Sawhney P, Parmar K. Preparation of PLGA Microspheres Using the Non-Toxic Glycofurol as Polymer Solvent by a Modified Phase Inversion Methodology. Polymers (Basel) 2024; 16:434. [PMID: 38337323 DOI: 10.3390/polym16030434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
Poly(D,L-lactide-co-glycolide is a biodegradable copolymer that can release pharmaceuticals. These pharmaceuticals can provide local therapy and also avert the clinical issues that occur when a drug must be given continuously and/or automatically. However, the drawbacks of using poly(D,L-lactide-co-glycolide include the kinetics and duration of time of poly(D,L-lactide-co-glycolide drug release, the denaturing of the drug loaded drug, and the potential clinical side effects. These drawbacks are mainly caused by the volatile organic solvents needed to prepare poly(D,L-lactide-co-glycolide spheres. Using the non-toxic solvent glycofurol solvent instead of volatile organic solvents to construct poly(D,L-lactide-co-glycolide microspheres may deter the issues of using volatile organic solvents. Up to now, preparation of such glycofurol spheres has previously met with limited success. We constructed dexamethasone laden poly(D,L-lactide-co-glycolide microspheres utilizing glycofurol as the solvent within a modified phase inversion methodology. These prepared microspheres have a higher drug load and a lower rate of water diffusion. This prolongs drug release compared to dichloromethane constructed spheres. The glycofurol-generated spheres are also not toxic to target cells as is the case for dichloromethane-constructed spheres. Further, glycofurol-constructed spheres do not denature the dexamethasone molecule and have kinetics of drug release that are more clinically advantageous, including a lower drug burst and a prolonged drug release.
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Affiliation(s)
- Douglas Sobel
- Medical School, Georgetown University, Washington, DC 20057, USA
| | | | - Puja Sawhney
- Medical School, Georgetown University, Washington, DC 20057, USA
| | - Keerat Parmar
- Medical School, Georgetown University, Washington, DC 20057, USA
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Bakhrushina EO, Sakharova PS, Konogorova PD, Pyzhov VS, Kosenkova SI, Bardakov AI, Zubareva IM, Krasnyuk II, Krasnyuk II. Burst Release from In Situ Forming PLGA-Based Implants: 12 Effectors and Ways of Correction. Pharmaceutics 2024; 16:115. [PMID: 38258125 PMCID: PMC10819773 DOI: 10.3390/pharmaceutics16010115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/04/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
In modern pharmaceutical technology, modified-release dosage forms, such as in situ formed implants, are gaining rapidly in popularity. These dosage forms are created based on a configurable matrix consisting of phase-sensitive polymers capable of biodegradation, a hydrophilic solvent, and the active substance suspended or dissolved in it. The most used phase-sensitive implants are based on a biocompatible and biodegradable polymer, poly(DL-lactide-co-glycolide) (PLGA). OBJECTIVE This systematic review examines the reasons for the phenomenon of active ingredient "burst" release, which is a major drawback of PLGA-based in situ formed implants, and the likely ways to correct this phenomenon to improve the quality of in situ formed implants with a poly(DL-lactide-co-glycolide) matrix. DATA SOURCES Actual and relevant publications in PubMed and Google Scholar databases were studied. STUDY SELECTION The concept of the review was based on the theory developed during literature analysis of 12 effectors on burst release from in situ forming implants based on PLGA. Only those studies that sufficiently fully disclosed one or another component of the theory were included. RESULTS The analysis resulted in development of a systematic approach called the "12 Factor System", which considers various constant and variable, endogenous and exogenous factors that can influence the nature of 'burst release' of active ingredients from PLGA polymer-based in situ formed implants. These factors include matrix porosity, polymer swelling, LA:GA ratio, PLGA end groups, polymer molecular weight, active ingredient structure, polymer concentration, polymer loading with active ingredients, polymer combination, use of co-solvents, addition of excipients, and change of dissolution conditions. This review also considered different types of kinetics of active ingredient release from in situ formed implants and the possibility of using the "burst release" phenomenon to modify the active ingredient release profile at the site of application of this dosage form.
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Affiliation(s)
| | | | | | - Victor S. Pyzhov
- Department of Pharmaceutical Technology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow 119048, Russia; (E.O.B.); (P.S.S.); (P.D.K.); (S.I.K.); (A.I.B.); (I.M.Z.); (I.I.K.); (I.I.K.J.)
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6
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Ibaraki A, Kobayashi T. Phase Inversion Gelation Process and Additive Effects on Hydrogel Film Properties of Cotton Cellulose. Gels 2023; 10:34. [PMID: 38247757 PMCID: PMC10815357 DOI: 10.3390/gels10010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/23/2024] Open
Abstract
During the preparation of cotton cellulose hydrogels using the phase inversion gelation method of N,N-dimethylacetamide/LiCl solution under ethanol vapor, acetone (AC), methyl ethyl ketone (MEK), or diethyl ketone (DEK) were added as additives, and their gelation state and the properties of the resulting hydrogels were evaluated. Adding the ketones to the cellulose solution caused an increase in the gelation time, but the solution viscosity decreased, indicating that the cellulose tended to aggregate in the solution. Among the hydrogels prepared by adding ketones, the water content was as high as 2050%, especially for AC and MEK. In these hydrogels, cellulose formed an agglomerated fibrous network of a few micron widths, forming a tuft-like entrapment space of about 10 to 100 μm size. The structure surrounded water and held it in the hydrogels. The FTIR results showed that the water, which formed hydrogen bonds, was retained within the hydrogel network. This structural configuration was determined to be conducive to maintaining the gel state against external deformation forces, especially in the case of the addition of MEK.
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Affiliation(s)
| | - Takaomi Kobayashi
- Department of Science of Technology Innovation, Nagaoka University of Technology, Niigata 940-2188, Japan;
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7
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Cui X, Miao C, Lu S, Liu X, Yang Y, Sun J. Strain Sensors Made of MXene, CNTs, and TPU/PSF Asymmetric Structure Films with Large Tensile Recovery and Applied in Human Health Monitoring. ACS Appl Mater Interfaces 2023; 15:59655-59670. [PMID: 38085975 DOI: 10.1021/acsami.3c11328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Designing flexible wearable sensors with a wide sensing range, high sensitivity, and high stability is a vulnerable research direction with a futuristic field to study. In this paper, Ti3C2Tx MXene/carbon nanotube (CNT)/thermoplastic polyurethane (TPU)/polysulfone (PSF) composite films with excellent sensor performance were obtained by self-assembly of conductive fillers in TPU/PSF porous films with an asymmetric structure through vacuum filtration, and the porous films were prepared by the phase inversion method. The composite films consist of the upper part with finger-like "cavities" filled by MXene/CNTs, which reduces the microcracks in the conductive network during the tensile process, and the lower part has smaller apertures of a relatively dense resin cortex assisting the recovery process. The exclusive layer structure of the MXene/CNTs/TPU/PSF film sensor, with a thickness of 46.95 μm, contains 0.0339 mg/cm2 single-walled carbon nanotubes (SWNTs) and 0.348 mg/cm2 MXene only, providing functional range (0-80.7%), high sensitivity (up to 1265.18), and excellent stability and durability (stable sensing under 2300 fatigue tests, viable to the initial resistance), endurably cycled under large strains with serious damage to the conductive network. Finally, the MXene/CNTs/TPU/PSF film sensor is usable for monitoring pulse, swallow, tiptoe, and various joint bends in real time and distributing effective electrical signals. This paper implies that the MXene/CNTs/TPU/PSF film sensor has broad prospects in pragmatic applications.
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Affiliation(s)
- Xiaoyu Cui
- School of Materials Science and Engineering, Shenyang University of Aeronautics and Astronautics, Shenyang 110136, China
| | - Chengjing Miao
- School of Materials Science and Engineering, Shenyang University of Aeronautics and Astronautics, Shenyang 110136, China
| | - Shaowei Lu
- School of Materials Science and Engineering, Shenyang University of Aeronautics and Astronautics, Shenyang 110136, China
| | - Xingmin Liu
- School of Materials Science and Engineering, Shenyang University of Aeronautics and Astronautics, Shenyang 110136, China
| | - Yuxuan Yang
- School of Materials Science and Engineering, Shenyang University of Aeronautics and Astronautics, Shenyang 110136, China
| | - Jingchao Sun
- School of Science, Shenyang Aerospace University, Shenyang 110136, China
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8
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Liu F, Li Y, Li X, Wang X. Study on the Properties Changes of Reversible Invert Emulsion during the Process from O/W to W/O with Alkali. Molecules 2023; 29:62. [PMID: 38202642 PMCID: PMC10780228 DOI: 10.3390/molecules29010062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/01/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
The reversible emulsion drilling fluid system combines the advantages of both oil-based and water-based drilling fluids, which can achieve ideal results in different stages of drilling and completion, and the system can be reused to effectively reduce costs. However, the research on reversible emulsions mainly focuses on the development of new reversible emulsifiers, while the specific phase transformation mechanism of reversible emulsion systems is still unclear. In this paper, a stable reversible emulsion was prepared using the reversible emulsifier DMOB as a raw material, and the reversible emulsion performance of the alkali response from the O/W emulsion phase to the W/O emulsion was studied. The microstructure of reversible emulsions was studied by a microscope, a cryogenic transmission electron microscopy, and a laser particle size analyzer. The changes in macroscopic properties of reversible emulsions in the process of alkali conversion were studied by pH, conductivity, demulsification voltage, static stability, viscosity, rheology, and other indicators, and the conversion mechanism of reversible emulsions from O/W emulsion ⟶ bicontinuous structure ⟶ O/W/O emulsion ⟶ W/O emulsion was clarified. The details are as follows: in the first stage, when the amount of NaOH ≤ 0.43 vol.%, the overall particle size of the emulsion decreases first and then increases with the increase in NaOH dosage. In the second stage, when the amount of NaOH was 0.45 vol.%, a double continuous structure was formed inside the emulsion. In the third stage, when the amount of NaOH is 0.48 vol.%, the O/W/O emulsion is formed, and with the increase in stirring time, the internal oil droplets gradually accumulate and are discharged from the water droplets, and finally, the W/O emulsion is formed. In the fourth stage, when the dosage of 0.50 vol.% ≤ NaOH ≤ 5.00 vol.%, the W/O emulsion was formed, and with the increase of NaOH dosage, the structure and compactness between water droplets increased first and then decreased. In the whole process, with the increase in the amount of NaOH solution, the total particle size of the emulsion first decreased and then increased.
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Affiliation(s)
- Fei Liu
- College of Petroleum Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China;
| | - Yongfei Li
- Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China;
| | - Xiaqing Li
- Petroleum Engineering Technology Research Institute of Shengli Oilfield Company, SINOPEC, Dongying 257000, China;
| | - Xuewu Wang
- College of Petroleum Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China;
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9
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Yang M, Gong X, Wang S, Tian Y, Yin X, Wang X, Yu J, Zhang S, Ding B. Two-Dimensional Nanofibrous Networks by Superspreading-Based Phase Inversion for High-Efficiency Separation. Nano Lett 2023; 23:10579-10586. [PMID: 37934045 DOI: 10.1021/acs.nanolett.3c03486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Two-dimensional (2D) nanomaterials have been widely applied as building blocks of nanoporous materials for high-precision separations. However, most existing 2D nanomaterials suffer from poor continuity and a lack of interior linking, resulting in deteriorated performance when assembled into macroscopic bulk structures. Here, a unique superspreading-based phase inversion technique is proposed to directly construct 2D nanofibrous networks (NFNs) from a polymer solution. By tailoring capillary behavior, polymer solution droplets evolve into ultrathin liquid films through superspreading; manipulating phase instability, subsequently, enables the liquid film to phase invert into continuous nanostructured networks. The assembled single-layered NFNs possess integrated structural superiorities of 1D nanoscale fiber diameter (∼40 nm) and 2D lateral infinity, exhibiting a weblike nanoarchitecture with extremely small through-pores (∼100 nm). Our NFNs show remarkable performances in air filtration (PM0.3 removal) and water purification (microfiltration level). This creation of such attractive 2D fibrous nanomaterials can pave the way for versatile high-performance separation applications.
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Affiliation(s)
- Ming Yang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Xiaobao Gong
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Sai Wang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Yucheng Tian
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Xia Yin
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Xianfeng Wang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jianyong Yu
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Shichao Zhang
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
| | - Bin Ding
- Innovation Center for Textile Science and Technology, College of Textiles, Donghua University, Shanghai 201620, China
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10
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Abounahia N, Shahab AA, Khan MM, Qiblawey H, Zaidi SJ. A Comprehensive Review of Performance of Polyacrylonitrile-Based Membranes for Forward Osmosis Water Separation and Purification Process. Membranes (Basel) 2023; 13:872. [PMID: 37999358 PMCID: PMC10672921 DOI: 10.3390/membranes13110872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 11/25/2023]
Abstract
Polyacrylonitrile (PAN), with its unique chemical, electrical, mechanical, and thermal properties, has become a crucial acrylic polymer for the industry. This polymer has been widely used to fabricate ultrafiltration, nanofiltration, and reverse osmosis membranes for water treatment applications. However, it recently started to be used to fabricate thin-film composite (TFC) and fiber-based forward osmosis (FO) membranes at a lab scale. Phase inversion and electrospinning methods were the most utilized techniques to fabricate PAN-based FO membranes. The PAN substrate layer could function as a good support layer to create TFC and fiber membranes with excellent performance under FO process conditions by selecting the proper modification techniques. The various modification techniques used to enhance PAN-based FO performance include interfacial polymerization, layer-by-layer assembly, simple coating, and incorporating nanofillers. Thus, the fabrication and modification techniques of PAN-based porous FO membranes have been highlighted in this work. Also, the performance of these FO membranes was investigated. Finally, perspectives and potential directions for further study on PAN-based FO membranes are presented in light of the developments in this area. This review is expected to aid the scientific community in creating novel effective porous FO polymeric membranes based on PAN polymer for various water and wastewater treatment applications.
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Affiliation(s)
- Nada Abounahia
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Arqam Azad Shahab
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Maryam Mohammad Khan
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Hazim Qiblawey
- Department of Chemical Engineering, College of Engineering, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Syed Javaid Zaidi
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
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11
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Liu F, Li Y, Li X, Wang X. The Phase Inversion Mechanism of the pH-Sensitive Reversible Invert Emulsion. Molecules 2023; 28:7407. [PMID: 37959826 PMCID: PMC10650449 DOI: 10.3390/molecules28217407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
Reversible emulsification drilling fluids can achieve conversion between oil-based drilling fluids and water-based drilling fluids at different stages of drilling and completion, combining the advantages of both to achieve the desired drilling and completion effects. The foundation of reversible emulsion drilling fluids lies in reversible emulsions, and the core of a reversible emulsion is the reversible emulsifier. In this study, we prepared a reversible emulsifier, DMOB(N,N-dimethyl-N'-oleic acid-1,4-butanediamine), and investigated the reversible phase inversion process of reversible emulsions, including the changes in the reversible emulsifier (HLB) and its distribution at the oil-water interface (zeta potential). From the perspective of the acid-alkali response mechanism of reversible emulsifiers, we explored the reversible phase inversion mechanism of reversible emulsions and reversible emulsification drilling fluids. It was revealed that the reversible phase inversion of emulsions could be achieved by adjusting the pH of the emulsion system. Then the proportion of ionic surfactants changed in the oil-water interface and subsequently raised/lowered the HLB value of the composite emulsifier at the oil-water interface, leading to reversible phase inversion of the emulsion. The introduction of organic clays into reversible emulsification drilling fluid can affect the reversible conversion performance of the drilling fluids at the oil-water interface. Thus, we also investigated the influence of organic clays on reversible emulsions. It was demonstrated that a dosage of organic clay of ≤2.50 g/100 mL could maintain the reversible phase inversion performance of reversible emulsions. By analyzing the microstructure of the emulsion and the complex oil-water interface, we revealed the mechanism of the influence of organic clay on the reversible emulsion. Organic clay distributed at the oil-water interface not only formed a complex emulsifier with surfactants, but also affected the microstructure of the emulsion, resulting in a difficult acid-induced phase transition, an easy alkali-induced phase transition, and improved overall stability.
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Affiliation(s)
- Fei Liu
- College of Petroleum Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China;
| | - Yongfei Li
- Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China;
| | - Xiaqing Li
- Petroleum Engineering Technology Research Institute of Shengli Oilfield Company, China Petrochemical Corporation, Dongying 257061, China;
| | - Xuewu Wang
- College of Petroleum Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257061, China;
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12
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Mahmoud AED, Mostafa E. Nanofiltration Membranes for the Removal of Heavy Metals from Aqueous Solutions: Preparations and Applications. Membranes (Basel) 2023; 13:789. [PMID: 37755211 PMCID: PMC10538012 DOI: 10.3390/membranes13090789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/02/2023] [Accepted: 09/06/2023] [Indexed: 09/28/2023]
Abstract
Water shortages are one of the problems caused by global industrialization, with most wastewater discharged without proper treatment, leading to contamination and limited clean water supply. Therefore, it is important to identify alternative water sources because many concerns are directed toward sustainable water treatment processes. Nanofiltration membrane technology is a membrane integrated with nanoscale particle size and is a superior technique for heavy metal removal in the treatment of polluted water. The fabrication of nanofiltration membranes involves phase inversion and interfacial polymerization. This review provides a comprehensive outline of how nanoparticles can effectively enhance the fabrication, separation potential, and efficiency of NF membranes. Nanoparticles take the form of nanofillers, nanoembedded membranes, and nanocomposites to give multiple approaches to the enhancement of the NF membrane's performance. This could significantly improve selectivity, fouling resistance, water flux, porosity, roughness, and rejection. Nanofillers can form nanoembedded membranes and thin films through various processes such as in situ polymerization, layer-by-layer assembly, blending, coating, and embedding. We discussed the operational conditions, such as pH, temperature, concentration of the feed solution, and pressure. The mitigation strategies for fouling resistance are also highlighted. Recent developments in commercial nanofiltration membranes have also been highlighted.
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Affiliation(s)
- Alaa El Din Mahmoud
- Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
- Green Technology Group, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
| | - Esraa Mostafa
- Environmental Sciences Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt
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13
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Zhang Q, Zhou R, Peng X, Li N, Dai Z. Development of Support Layers and Their Impact on the Performance of Thin Film Composite Membranes (TFC) for Water Treatment. Polymers (Basel) 2023; 15:3290. [PMID: 37571184 PMCID: PMC10422403 DOI: 10.3390/polym15153290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Thin-film composite (TFC) membranes have gained significant attention as an appealing membrane technology due to their reversible fouling and potential cost-effectiveness. Previous studies have predominantly focused on improving the selective layers to enhance membrane performance. However, the importance of improving the support layers has been increasingly recognized. Therefore, in this review, preparation methods for the support layer, including the traditional phase inversion method and the electrospinning (ES) method, as well as the construction methods for the support layer with a polyamide (PA) layer, are analyzed. Furthermore, the effect of the support layers on the performance of the TFC membrane is presented. This review aims to encourage the exploration of suitable support membranes to enhance the performance of TFC membranes and extend their future applications.
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Affiliation(s)
- Qing Zhang
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Rui Zhou
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Xue Peng
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
| | - Nan Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
- School of Chemistry, Tiangong University, Tianjin 300387, China
| | - Zhao Dai
- School of Chemical Engineering and Technology, Tiangong University, Tianjin 300387, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China
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14
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Della Sala F, Borzacchiello A, Dianzani C, Muntoni E, Argenziano M, Capucchio MT, Valsania MC, Bozza A, Garelli S, Di Muro M, Scorziello F, Battaglia L. Ultrasmall Solid-Lipid Nanoparticles via the Polysorbate Sorbitan Phase-Inversion Temperature Technique: A Promising Vehicle for Antioxidant Delivery into the Skin. Pharmaceutics 2023; 15:1962. [PMID: 37514149 PMCID: PMC10383899 DOI: 10.3390/pharmaceutics15071962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/04/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Solid lipid nanoparticles promote skin hydration via stratum corneum occlusion, which prevents water loss by evaporation, and via the reinforcement of the skin's lipid-film barrier, which occurs through the adhesion of the nanoparticles to the stratum corneum. The efficacy of both phenomena correlates with lower nanoparticle size and the increased skin permeation of loaded compounds. The so-called Polysorbate Sorbitan Phase-Inversion Temperature method has, therefore, been optimized in this experimental work, in order to engineer ultrasmall solid-lipid nanoparticles that were then loaded with α-tocopherol, as the anti-age ingredient for cosmetic application. Ultrasmall solid-lipid nanoparticles have been proven to be able to favor the skin absorption of loaded compounds via the aforementioned mechanisms.
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Affiliation(s)
- Francesca Della Sala
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Viale J.F. Kennedy 54, 80125 Naples, Italy; (F.D.S.); (A.B.)
| | - Assunta Borzacchiello
- Institute of Polymers, Composites and Biomaterials, National Research Council (IPCB-CNR), Viale J.F. Kennedy 54, 80125 Naples, Italy; (F.D.S.); (A.B.)
| | - Chiara Dianzani
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy; (C.D.); (E.M.); (M.A.); (A.B.); (S.G.)
| | - Elisabetta Muntoni
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy; (C.D.); (E.M.); (M.A.); (A.B.); (S.G.)
| | - Monica Argenziano
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy; (C.D.); (E.M.); (M.A.); (A.B.); (S.G.)
| | - Maria Teresa Capucchio
- Department of Veterinary Sciences, University of Turin, Largo Paolo Braccini 2, 10095 Grugliasco, Italy;
| | - Maria Carmen Valsania
- Department of Chemistry, University of Turin, Via Quarello 15/a, 10135 Turin, Italy;
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, 10124 Turin, Italy
| | - Annalisa Bozza
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy; (C.D.); (E.M.); (M.A.); (A.B.); (S.G.)
| | - Sara Garelli
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy; (C.D.); (E.M.); (M.A.); (A.B.); (S.G.)
| | - Maria Di Muro
- R Bio Transfer srl, Via Parmenide 156, 84131 Salerno, Italy; (M.D.M.); (F.S.)
| | - Franco Scorziello
- R Bio Transfer srl, Via Parmenide 156, 84131 Salerno, Italy; (M.D.M.); (F.S.)
| | - Luigi Battaglia
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, Via Pietro Giuria 9, 10125 Turin, Italy; (C.D.); (E.M.); (M.A.); (A.B.); (S.G.)
- Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, 10124 Turin, Italy
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15
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Pires PC, Fernandes M, Nina F, Gama F, Gomes MF, Rodrigues LE, Meirinho S, Silvestre S, Alves G, Santos AO. Innovative Aqueous Nanoemulsion Prepared by Phase Inversion Emulsification with Exceptional Homogeneity. Pharmaceutics 2023; 15:1878. [PMID: 37514064 PMCID: PMC10384498 DOI: 10.3390/pharmaceutics15071878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/22/2023] [Accepted: 06/30/2023] [Indexed: 07/30/2023] Open
Abstract
Formulating low-solubility or low-permeability drugs is a challenge, particularly with the low administration volumes required in intranasal drug delivery. Nanoemulsions (NE) can solve both issues, but their production and physical stability can be challenging, particularly when a high proportion of lipids is necessary. Hence, the aim of the present work was to develop a NE with good solubilization capacity for lipophilic drugs like simvastatin and able to promote the absorption of drugs with low permeability like fosphenytoin. Compositions with high proportion of two lipids were screened and characterized. Surprisingly, one of the compositions did not require high energy methods for high droplet size homogeneity. To better understand formulation factors important for this feature, several related compositions were evaluated, and their relative cytotoxicity was screened. Optimized compositions contained a high proportion of propylene glycol monocaprylate NF, formed very homogenous NE using a low-energy phase inversion method, solubilized simvastatin at high drug strength, and promoted a faster intranasal absorption of the hydrophilic prodrug fosphenytoin. Hence, a new highly homogeneous NE obtained by a simple low-energy method was successfully developed, which is a potential alternative for industrial application for the solubilization and protection of lipophilic actives, as well as (co-)administration of hydrophilic molecules.
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Affiliation(s)
- Patrícia C Pires
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Mariana Fernandes
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Francisca Nina
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Francisco Gama
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Maria F Gomes
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Lina E Rodrigues
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Sara Meirinho
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Samuel Silvestre
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Sciences, University of Beira Interior, Rua Marquês d'Ávila e Bolama, 6201-001 Covilhã, Portugal
| | - Gilberto Alves
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Adriana O Santos
- CICS-UBI-Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- Faculty of Health Sciences, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
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16
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Ilyin SO, Kostyuk AV, Anokhina TS, Melekhina VY, Bakhtin DS, Antonov SV, Volkov AV. The Effect of Non-Solvent Nature on the Rheological Properties of Cellulose Solution in Diluted Ionic Liquid and Performance of Nanofiltration Membranes. Int J Mol Sci 2023; 24:ijms24098057. [PMID: 37175771 PMCID: PMC10178530 DOI: 10.3390/ijms24098057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/14/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
The weak point of ionic liquids is their high viscosity, limiting the maximum polymer concentration in the forming solutions. A low-viscous co-solvent can reduce viscosity, but cellulose has none. This study demonstrates that dimethyl sulfoxide (DMSO), being non-solvent for cellulose, can act as a nominal co-solvent to improve its processing into a nanofiltration membrane by phase inversion. A study of the rheology of cellulose solutions in diluted ionic liquids ([EMIM]Ac, [EMIM]Cl, and [BMIM]Ac) containing up to 75% DMSO showed the possibility of decreasing the viscosity by up to 50 times while keeping the same cellulose concentration. Surprisingly, typical cellulose non-solvents (water, methanol, ethanol, and isopropanol) behave similarly, reducing the viscosity at low doses but causing structuring of the cellulose solution and its phase separation at high concentrations. According to laser interferometry, the nature of these non-solvents affects the mass transfer direction relative to the forming membrane and the substance interdiffusion rate, which increases by four-fold when passing from isopropanol to methanol or water. Examination of the nanofiltration characteristics of the obtained membranes showed that the dilution of ionic liquid enhances the rejection without changing the permeability, while the transition to alcohols increases the permeability while maintaining the rejection.
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Affiliation(s)
- Sergey O Ilyin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Anna V Kostyuk
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Tatyana S Anokhina
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Viktoria Y Melekhina
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Danila S Bakhtin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Sergey V Antonov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
| | - Alexey V Volkov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospect, 119991 Moscow, Russia
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17
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Diwan T, Abudi ZN, Al-Furaiji MH, Nijmeijer A. A Competitive Study Using Electrospinning and Phase Inversion to Prepare Polymeric Membranes for Oil Removal. Membranes (Basel) 2023; 13:membranes13050474. [PMID: 37233535 DOI: 10.3390/membranes13050474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/27/2023]
Abstract
Polyacrylonitrile (PAN) is a popular polymer that can be made into membranes using various techniques, such as electrospinning and phase inversion. Electrospinning is a novel technique that produces nonwoven nanofiber-based membranes with highly tunable properties. In this research, electrospun PAN nanofiber membranes with various concentrations (10, 12, and 14% PAN/dimethylformamide (DMF)) were prepared and compared to PAN cast membranes prepared by the phase inversion technique. All of the prepared membranes were tested for oil removal in a cross-flow filtration system. A comparison between these membranes' surface morphology, topography, wettability, and porosity was presented and analyzed. The results showed that increasing the concentration of the PAN precursor solution increases surface roughness, hydrophilicity, and porosity and, consequently, enhances the membrane performance. However, the PAN cast membranes showed a lower water flux when the precursor solution concentration increased. In general, the electrospun PAN membranes performed better in terms of water flux and oil rejection than the cast PAN membranes. The electrospun 14% PAN/DMF membrane gave a water flux of 250 LMH and a rejection of 97% compared to the cast 14% PAN/DMF membrane, which showed a water flux of 117 LMH and 94% oil rejection. This is mainly because the nanofibrous membrane showed higher porosity, higher hydrophilicity, and higher surface roughness compared to the cast PAN membranes at the same polymer concentration. The porosity of the electrospun PAN membrane was 96%, while it was 58% for the cast 14% PAN/DMF membrane.
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Affiliation(s)
- Thamer Diwan
- Environmental Engineering Department, College of Engineering, Mustansiriyah University, Baghdad 10052, Iraq
- Technical Directorate, Ministry of Environment, Baghdad 10066, Iraq
| | - Zaidun N Abudi
- Environmental Engineering Department, College of Engineering, Mustansiriyah University, Baghdad 10052, Iraq
| | - Mustafa H Al-Furaiji
- Environment and Water Directorate, Ministry of Science and Technology, Baghdad 10066, Iraq
| | - Arian Nijmeijer
- Inorganic Membranes, Department of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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18
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Baroud TN. Tuning PVDF Membrane Porosity and Wettability Resistance via Varying Substrate Morphology for the Desalination of Highly Saline Water. Membranes (Basel) 2023; 13:395. [PMID: 37103822 PMCID: PMC10141797 DOI: 10.3390/membranes13040395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/13/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
Here, we report the fabrication of a series of highly efficient polyvinylidene fluoride (PVDF) membranes via substrate morphology variations. A wide range of sandpaper grit sizes (150-1200) were utilized as casting substrates. The effect of the penetration of abrasive particles present on the sandpapers on the casted polymer solution was tuned, and the impact of these particles on porosity, surface wettability, liquid entry pressure and morphology were investigated. The membrane distillation performance of the developed membrane on sandpapers was evaluated for the desalination of highly saline water (70,000 ppm). Interestingly, the utilization of cheap and widely available sandpapers as a substrate for casting can not only help in tuning the MD performance, but also in producing highly efficient membranes with stable salt rejection (up to 100%) and a 210% increase in the permeate flux over 24 h. The findings in this study will help in delineating the role of substrate nature in controlling the produced membrane characteristics and performance.
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Affiliation(s)
- Turki N. Baroud
- Materials Science & Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia;
- Interdisciplinary Research Center for Membranes & Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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19
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Rekik SB, Gassara S, Deratani A. Green Fabrication of Sustainable Porous Chitosan/Kaolin Composite Membranes Using Polyethylene Glycol as a Porogen: Membrane Morphology and Properties. Membranes (Basel) 2023; 13:378. [PMID: 37103805 PMCID: PMC10143062 DOI: 10.3390/membranes13040378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
One of the major challenges in membrane manufacturing today is to reduce the environmental footprint by promoting biobased raw materials and limiting the use of toxic solvents. In this context, environmentally friendly chitosan/kaolin composite membranes, prepared using phase separation in water induced by a pH gradient, have been developed. Polyethylene glycol (PEG) with a molar mass ranging from 400 to 10,000 g·mol-1 was used as a pore forming agent. The addition of PEG to the dope solution strongly modified the morphology and properties of the formed membranes. These results indicated that PEG migration induced the formation of a network of channels promoting the penetration of the non-solvent during the phase separation process, resulting in an increase in porosity and the formation of a finger-like structure surmounted by a denser structure of interconnected pores of 50-70 nm in diameter. The hydrophilicity of the membrane surface increased likely related to PEG trapping in the composite matrix. Both phenomena were more marked as the PEG polymer chain was longer, resulting in a threefold improvement in filtration properties.
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Affiliation(s)
- Sonia Bouzid Rekik
- Institut Européen des membranes, IEM, UMR-5635, ENSCM, CNRS, Université Montpellier, 34095 Montpellier, France
- Bioengineering, Tissues and Neuroplasticity, EA 7377, Faculté de Santé, EPISEN, Université Paris-Est Créteil, 8 rue du Général Sarrail, 94010 Créteil, France
| | - Sana Gassara
- Institut Européen des membranes, IEM, UMR-5635, ENSCM, CNRS, Université Montpellier, 34095 Montpellier, France
| | - André Deratani
- Institut Européen des membranes, IEM, UMR-5635, ENSCM, CNRS, Université Montpellier, 34095 Montpellier, France
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20
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Yi L, Wang C, Huisman SG, Sun C. Recent developments of turbulent emulsions in Taylor-Couette flow. Philos Trans A Math Phys Eng Sci 2023; 381:20220129. [PMID: 36709776 PMCID: PMC10177157 DOI: 10.1098/rsta.2022.0129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Emulsions are common in many natural and industrial settings. Recently, much attention has been paid to understanding the dynamics of turbulent emulsions. This paper reviews some recent studies of emulsions in turbulent Taylor-Couette flow, mainly focusing on the statistics of the dispersed phase and the global momentum transport of the system. We first study the size distribution and the breakup mechanism of the dispersed droplets for turbulent emulsions with a low volume-fraction (dilute) of the dispersed phase. For systems with a high volume-fraction (dense) of the dispersed phase, we address the detailed response of the global transport (effective viscosity) of the turbulent emulsion and its connection to the droplet statistics. Finally, we will discuss catastrophic phase inversions, which can happen when the volume-fraction of the dispersed phase exceeds a critical value during dynamic emulsification. We end the manuscript with a summary and an outlook including some open questions for future research. This article is part of the theme issue 'Taylor-Couette and related flows on the centennial of Taylor's seminal Philosophical Transactions paper (part 1)'.
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Affiliation(s)
- Lei Yi
- Center for Combustion Energy, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, International Joint Laboratory on Low Carbon Clean Energy Innovation, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Cheng Wang
- Center for Combustion Energy, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, International Joint Laboratory on Low Carbon Clean Energy Innovation, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, People's Republic of China
| | - Sander G Huisman
- Physics of Fluids Group, Max Planck UT Center for Complex Fluid Dynamics, University of Twente, Enschede 7500 AE, Netherlands
| | - Chao Sun
- Center for Combustion Energy, Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, International Joint Laboratory on Low Carbon Clean Energy Innovation, Department of Energy and Power Engineering, Tsinghua University, Beijing 100084, People's Republic of China
- Physics of Fluids Group, Max Planck UT Center for Complex Fluid Dynamics, University of Twente, Enschede 7500 AE, Netherlands
- Department of Engineering Mechanics, School of Aerospace Engineering, Tsinghua University, Beijing 100084, People's Republic of China
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21
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Gayatri R, Fizal ANS, Yuliwati E, Hossain MS, Jaafar J, Zulkifli M, Taweepreda W, Ahmad Yahaya AN. Preparation and Characterization of PVDF-TiO 2 Mixed-Matrix Membrane with PVP and PEG as Pore-Forming Agents for BSA Rejection. Nanomaterials (Basel) 2023; 13:1023. [PMID: 36985917 PMCID: PMC10057082 DOI: 10.3390/nano13061023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/04/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Polymeric membranes offer straightforward modification methods that make industry scaling affordable and easy; however, these materials are hydrophobic, prone to fouling, and vulnerable to extreme operating conditions. Various attempts were made in this study to fix the challenges in using polymeric membranes and create mixed-matrix membrane (MMMs) with improved properties and hydrophilicity by adding titanium dioxide (TiO2) and pore-forming agents to hydrophobic polyvinylidene fluoride (PVDF). The PVDF mixed-matrix ultrafiltration membranes in this study were made using the non-solvent phase inversion approach which is a simple and effective method for increasing the hydrophilic nature of membranes. Polyvinylpyrrolidone (PVP) and polyethylene glycol (PEG) as pore-forming chemicals were created. Pure water flux, BSA flux, and BSA rejection were calculated to evaluate the mixed-matrix membrane's efficiency. Bovine serum albumin (BSA) solution was employed in this study to examine the protein rejection ability. Increases in hydrophilicity, viscosity, and flux in pure water and BSA solution were achieved using PVP and PEG additives. The PVDF membrane's hydrophilicity was raised with the addition of TiO2, showing an increased contact angle to 71°. The results show that the PVDF-PVP-TiO2 membrane achieved its optimum water flux of 97 L/(m2h) while the PVDF-PEG-TiO2 membrane rejected BSA at a rate greater than 97%. The findings demonstrate that use of a support or additive improved filtration performance compared to a pristine polymeric membrane by increasing its hydrophilicity.
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Affiliation(s)
- Rianyza Gayatri
- Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur Malaysian, Alor Gajah 78000, Melaka, Malaysia; (R.G.); (A.N.S.F.); (M.Z.)
- Polymer Science Program, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat-Yai 90110, Songkhla, Thailand;
| | - Ahmad Noor Syimir Fizal
- Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur Malaysian, Alor Gajah 78000, Melaka, Malaysia; (R.G.); (A.N.S.F.); (M.Z.)
| | - Erna Yuliwati
- Program Study of Chemical Engineering, Faculty of Engineering, Universitas Muhammadiyah Palembang, Jalan A. Yani 13 Ulu Kota, Palembang 30263, Indonesia;
| | - Md Sohrab Hossain
- HICoE-Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Department of Fundamental and Applied Sciences, Faculty of Science and Information Technology, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak Darul Ridzuan, Malaysia;
| | - Juhana Jaafar
- Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia;
| | - Muzafar Zulkifli
- Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur Malaysian, Alor Gajah 78000, Melaka, Malaysia; (R.G.); (A.N.S.F.); (M.Z.)
| | - Wirach Taweepreda
- Polymer Science Program, Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat-Yai 90110, Songkhla, Thailand;
| | - Ahmad Naim Ahmad Yahaya
- Institute of Chemical and Bioengineering Technology, Universiti Kuala Lumpur Malaysian, Alor Gajah 78000, Melaka, Malaysia; (R.G.); (A.N.S.F.); (M.Z.)
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22
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Xu Z, Liu Z, Gu Z, Zhao X, Guo D, Yao X. Polyimide-Based Solid-State Gel Polymer Electrolyte for Lithium-Oxygen Batteries with a Long-Cycling Life. ACS Appl Mater Interfaces 2023; 15:7014-7022. [PMID: 36706135 DOI: 10.1021/acsami.2c22694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Metal-air batteries have attracted wide interest owing to their ultrahigh theoretical energy densities, particularly for lithium-oxygen batteries. One of the challenges inhibiting the practical application of lithium-oxygen batteries is the unavoidable liquid electrolyte evaporation accompanying oxygen fluxion in the semi-open system, which leads to safety issues and poor cyclic performance. To address these issues, we propose a solid-state polyimide based gel polymer electrolyte (PI@GPE), immobilizing and reserving a liquid electrolyte in the gelled polymer substrate. The liquid electrolyte uptake of PI@GPE is measured to be 842%, 6 times higher than that of the commercial glass fiber separator, contributing to a high ionic conductivity of 0.44 mS cm-1. Additionally, PI@GPE possesses an enhanced lithium transference number of 0.596 as well as superior interfacial compatibility with lithium metals. Under 0.1 mA cm-2 and 0.25 mA h cm-2, PI@GPE-based lithium-oxygen batteries demonstrate distinguished long-cycling stability of 366 cycles, 4 times more than that with a glass fiber separator and liquid electrolyte. Our work provides a unique solid-state gel polymer electrolyte to mitigate liquid electrolyte leakage, exhibiting promising potential application in highly safe lithium-oxygen batteries with a long-cycling life.
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Affiliation(s)
- Zelin Xu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, P. R. China
| | - Ziqiang Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, P. R. China
- Center of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Zhi Gu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, P. R. China
| | - Xiaolei Zhao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, P. R. China
- Center of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, P. R. China
| | - Dingcheng Guo
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, P. R. China
| | - Xiayin Yao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo315201, P. R. China
- Center of Material Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing100049, P. R. China
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Tshindane P, Mamba BB, Motsa MM, Nkambule TTI. Delayed Solvent-Nonsolvent Demixing Preparation and Performance of a Highly Permeable Polyethersulfone Ultrafiltration Membrane. Membranes (Basel) 2022; 13:39. [PMID: 36676846 PMCID: PMC9866341 DOI: 10.3390/membranes13010039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Membrane performance optimization is a critical preparation step that ensures optimum separation and fouling resistance. Several studies have employed additives such as carbon and inorganic nanomaterials to optimize membrane performance. These particles provide excellent results but are rather costly, unstable and toxic to several biological organs. This study demonstrated that performance enhancement can also be achieved through delayed solvent−nonsolvent demixing during phase inversion membrane preparation. The rate of solvent−nonsolvent demixing was delayed by increasing the concentration of the solvent in the coagulation bath. This study employed synthetic and real water samples and several analytical techniques to compare optimized performances and properties of membranes prepared in this study with that of nanoparticle-embedded membranes in the literature. Pure water flux and BSA rejection of the membranes prepared in this study were comparable to those of nanoparticle embedded membranes. This study also shows the influence of delayed solvent−nonsolvent demixing on membrane properties such as morphology, wettability, surface roughness and porosity, thereby showing the suitability of the technique in membrane optimization. Furthermore, fouling studies showed that membranes prepared in this study have high flux recovery when fouled by humic acid feed water (>95%) and above 50% flux recovery with real water samples.
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Saleh M, Ozay Y, Yalvac M, Dizge N. Preparation of composite polyethersulfone membrane containing basalt powder and optimization of the parameters using response surface methodology. Environ Technol 2022; 43:3486-3496. [PMID: 33906587 DOI: 10.1080/09593330.2021.1923818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
In this study, environmental-friendly composite polyethersulfone (PES) membranes based on basalt powder were prepared by phase inversion method. The effects of polymer percentage, the basalt percentage, and the thickness of the membrane were investigated on the distilled water flux, compaction factor, bovine serum albumin (BSA) rejection, contact angle, fouling factor and the parameters were modelled by response surface methodology (RSM). The distilled water flux increased when the basalt was added to the membrane up to 6% percentage of the polymer amount. The blending of basalt also provided resistance against the membrane compaction. The BSA rejection experiments approved the positive effects of basalt on the rejections efficiencies. At higher basalt percentages, the rejection efficiencies increased from 78% at the raw membrane to 99% for the composite membranes had 10% basalt. The adding of basalt to the membranes decreased the contact angles. The hydrophilicity of the membranes contained basalt in their structures was higher than those which had not basalt. By comparison with the neat membranes and the basalt added membrane, it can be said that the basalt increased the flux recovery and decreased the irreversible fouling factors. The basalt increased the antifouling properties for the composite membranes. Finally, the prepared membranes were characterized by scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX).
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Affiliation(s)
- Muhammed Saleh
- Department of Environmental Engineering, Mersin University, Mersin, Turkey
| | - Yasin Ozay
- Department of Environmental Engineering, Mersin University, Mersin, Turkey
| | - Mutlu Yalvac
- Department of Environmental Engineering, Mersin University, Mersin, Turkey
| | - Nadir Dizge
- Department of Environmental Engineering, Mersin University, Mersin, Turkey
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Kiaei K, Nord MT, Chiu NC, Stylianou KC. Degradation of G-Type Nerve Agent Simulant with Phase-Inverted Spherical Polymeric-MOF Catalysts. ACS Appl Mater Interfaces 2022; 14:19747-19755. [PMID: 35445601 DOI: 10.1021/acsami.2c03325] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
For the neutralization of chemical warfare agents (CWAs), the generation of an effective catalyst that can be handled safely and applied in personal protective equipment is required. Recently, zirconium-based metal-organic frameworks (Zr-MOFs: UiO-66 and UiO-67) have shown great promise in the degradation of CWAs, including nerve agents. Their catalytic activity is owed to the interplay of both Zr(IV) Lewis acids and Lewis basic groups in the MOF structure. The latter act as proximal bases that can interact with CWAs and improve the catalytic activity of Zr-MOFs. The powder form of MOFs, though, makes them impractical catalysts, as it is challenging to handle, regenerate, and reuse them. To address this challenge, we have synthesized three Zr-MOFs with Lewis basic amino and pyridine functionalities and shaped them in spherical polymeric beads using the phase inversion method. Using this method, we can generate beads with many polymer and MOF combinations (MOF@polymer). We controlled the MOF loading in these beads, and scanning electron microscopy images revealed that the MOF crystals are evenly distributed in the polymeric matrix, ensuring effective catalytic activity. We used these beads to degrade dimethyl p-nitrophenyl phosphate (DMNP), a simulant for the G-type nerve agent. Using 31P NMR, we showed that UiO-66-NH2@PES and UiO-67-(NH2)2@PES PES: poly(ether sulfone) beads destruct DMNP to dimethyl phosphate (DMP) with a half-life (t1/2) of 5.09 and 4.34 min, respectively. Beads made of hydrophobic polymers such as poly(vinylidene fluoride) (PVDF), polystyrene (PS), and Zr-MOFs with pyridine functionalities show that the quantitative hydrolysis of DMNP requires more time compared to that seen with the UiO-66-NH2@PES beads. Our work highlights the facile shaping of MOF powders into beads that can be easily regenerated with their catalytic activity to be maintained for at least three cycles of use.
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Affiliation(s)
- Kimia Kiaei
- Materials Discovery Laboratory (MaD Lab), 153 Gilbert Hall, Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Makenzie T Nord
- Materials Discovery Laboratory (MaD Lab), 153 Gilbert Hall, Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Nan-Chieh Chiu
- Materials Discovery Laboratory (MaD Lab), 153 Gilbert Hall, Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Kyriakos C Stylianou
- Materials Discovery Laboratory (MaD Lab), 153 Gilbert Hall, Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
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Paidi MK, Polisetti V, Damarla K, Singh PS, Mandal SK, Ray P. 3D Natural Mesoporous Biosilica-Embedded Polysulfone Made Ultrafiltration Membranes for Application in Separation Technology. Polymers (Basel) 2022; 14:polym14091750. [PMID: 35566918 PMCID: PMC9101741 DOI: 10.3390/polym14091750] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/24/2022] [Accepted: 04/24/2022] [Indexed: 02/01/2023] Open
Abstract
Diatoms are the most abundant photosynthetic microalgae found in all aquatic habitats. In the extant study, the spent biomass (after lipid extraction) of the centric marine diatom Thalassiosira lundiana CSIRCSMCRI 001 was subjected to acid digestion for the extraction of micro composite inorganic biosilica. Then, the resulting three-dimensional mesoporous biosilica material (diatomite) was used as a filler in polysulfone (PSF) membrane preparation by phase inversion. The fabricated PSF/diatomite composite membranes were characterized by SEM-EDX, TGA, and ATR-IR, and their performances were evaluated. The number of pores and pore size were increased on the membrane surface with increased diatomite in the composite membranes as compared to the control. The diatomite composite membranes had high hydrophilicity and thermal stability, lower surface roughness, and excellent water permeability. Membranes with high % diatomite, i.e., PSF/Dia0.5, had a maximum water flux of 806.8 LMH (Liter/m2/h) at 20 psi operating pressure. High-diatomite content membranes also exhibited the highest rejection of BSA protein (98.5%) and rhodamine 6G (94.8%). Similarly, in biomedical rejection tests, the PSF/Dia0.5 membrane exhibited a maximum rejection of ampicillin (75.84%) and neomycin (85.88%) at 20 Psi pressure. In conclusion, the mesoporous inorganic biosilica material was extracted from spent biomass of diatom and successfully used in filtration techniques. The results of this study could enhance the application of natural biogenic porous silica materials in wastewater treatment for water recycling.
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Affiliation(s)
- Murali Krishna Paidi
- CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar 364002, India; (M.K.P.); (K.D.); (P.S.S.)
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Veerababu Polisetti
- CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar 364002, India; (M.K.P.); (K.D.); (P.S.S.)
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Correspondence: (V.P.); (S.K.M.); (P.R.)
| | - Krishnaiah Damarla
- CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar 364002, India; (M.K.P.); (K.D.); (P.S.S.)
| | - Puyam Sobhindro Singh
- CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar 364002, India; (M.K.P.); (K.D.); (P.S.S.)
| | - Subir Kumar Mandal
- CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar 364002, India; (M.K.P.); (K.D.); (P.S.S.)
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Correspondence: (V.P.); (S.K.M.); (P.R.)
| | - Paramita Ray
- CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific and Industrial Research (CSIR), GB Marg, Bhavnagar 364002, India; (M.K.P.); (K.D.); (P.S.S.)
- Correspondence: (V.P.); (S.K.M.); (P.R.)
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Hobiger V, Paljevac M, Krajnc P. Emulsion Templated Porous Poly(thiol-enes): Influence of Photopolymerisation, Emulsion Composition, and Phase Behaviour on the Porous Structure and Morphology. Polymers (Basel) 2022; 14:polym14071338. [PMID: 35406212 PMCID: PMC9002874 DOI: 10.3390/polym14071338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/14/2022] [Accepted: 03/23/2022] [Indexed: 02/04/2023] Open
Abstract
1,6-hexanediol diacrylate (HDDA) or divinyl adipate (DVA) and pentaerythritol tetrakis(3-mercaptopropionate) (TT) were polymerised via a thiol-ene radical initiated photopolymerisation using emulsions with a high volume fraction of internal droplet phase and monomers in the continuous phase as precursors. The porous structure derived from the high internal phase emulsions (HIPEs) followed the precursor emulsion setup resulting in an open porous cellularly structured polymer. Changing the emulsion composition and polymerisation conditions influenced the resulting morphological structure significantly. The investigated factors influencing the polymer monolith morphology were the emulsion phase ratio and surfactant concentration, leading to either interconnected cellular type morphology, bicontinuous porous morphology or a hollow sphere inverted structure of the polymerised monoliths. The samples with interconnected cellular morphology had pore diameters between 4 µm and 10 µm with approx. 1 µm sized interconnecting channels while samples with bicontinuous morphology featured approx. 5 µm wide pores between the polymer domains. The appropriate choice of emulsion composition enabled the preparation of highly porous poly(thiol-enes) with either polyHIPE or bicontinuous morphology. The porosities of the prepared samples followed the emulsion droplet phase share and could reach up to 88%.
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Kadlečková M, Skopalová K, Ptošková B, Wrzecionko E, Daďová E, Kocourková K, Mráček A, Musilová L, Smolka P, Humpolíček P, Minařík A. Hierarchically Structured Surfaces Prepared by Phase Separation: Tissue Mimicking Culture Substrate. Int J Mol Sci 2022; 23:ijms23052541. [PMID: 35269688 PMCID: PMC8910751 DOI: 10.3390/ijms23052541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/18/2022] [Accepted: 02/23/2022] [Indexed: 02/05/2023] Open
Abstract
The pseudo 3D hierarchical structure mimicking in vivo microenvironment was prepared by phase separation on tissue culture plastic. For surface treatment, time-sequenced dosing of the solvent mixture with various concentrations of polymer component was used. The experiments showed that hierarchically structured surfaces with macro, meso and micro pores can be prepared with multi-step phase separation processes. Changes in polystyrene surface topography were characterized by atomic force microscopy, scanning electron microscopy and contact profilometry. The cell proliferation and changes in cell morphology were tested on the prepared structured surfaces. Four types of cell lines were used for the determination of impact of the 3D architecture on the cell behavior, namely the mouse embryonic fibroblast, human lung carcinoma, primary human keratinocyte and mouse embryonic stem cells. The increase of proliferation of embryonic stem cells and mouse fibroblasts was the most remarkable. Moreover, the embryonic stem cells express different morphology when cultured on the structured surface. The acquired findings expand the current state of knowledge in the field of cell behavior on structured surfaces and bring new technological procedures leading to their preparation without the use of problematic temporary templates or additives.
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Affiliation(s)
- Markéta Kadlečková
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Kateřina Skopalová
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Barbora Ptošková
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
| | - Erik Wrzecionko
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Eliška Daďová
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Karolína Kocourková
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Aleš Mráček
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Lenka Musilová
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Petr Smolka
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
| | - Petr Humpolíček
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
- Correspondence: (P.H.); (A.M.)
| | - Antonín Minařík
- Faculty of Technology, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (M.K.); (B.P.); (E.W.); (K.K.); (A.M.); (L.M.); (P.S.)
- Centre of Polymer Systems, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic; (K.S.); (E.D.)
- Correspondence: (P.H.); (A.M.)
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Dedvukaj A, Van den Mooter P, Vankelecom IFJ. Solvent-Resistant UV-Cured Polysulfone Support Membranes Using a Green Solvent. Membranes (Basel) 2021; 12:1. [PMID: 35054531 PMCID: PMC8780891 DOI: 10.3390/membranes12010001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/12/2021] [Accepted: 12/13/2021] [Indexed: 06/14/2023]
Abstract
Solvent-resistant UV-cured supports consisting of a semi-interpenetrating network of polysulfone (PSf) and cross-linked poly-acrylate were successfully synthesized for the first time using an alternative, non-reprotoxic, and biodegradable solvent. Tamisolve® NxG is a high-boiling, dipolar aprotic solvent with solubility parameters similar to those of dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP), making it an eco-friendly alternative. The support membranes, prepared via UV-curing followed by non-solvent-induced phase inversion, can serve as a universal solvent-resistant support for the synthesis of a broad set of membranes, for which the selective layer can be deposited from any solvent. Parameters such as UV irradiation time and intensity, as well as the concentrations of PSf, penta-acrylate, and photo-initiator in the casting solution were varied to obtain such supports. The characteristics of the resulting supports were investigated in terms of separation performance, hydrophobicity, porosity, degree of acrylate conversion, and pure water flux. The resulting membranes showed improved chemical resistance in solvents such as ethyl acetate, NMP, tetrahydrofuran (THF), and toluene. Solvent-resistant supports with different pore sizes were synthesized and used for the preparation of thin film composite (TFC) membranes to demonstrate their potential. Promising separation performances with Rose Bengal (RB) rejections up to 98% and water permeances up to 1.5 L m-2 h-1 bar-1 were reached with these TFC-membranes carrying a polyamide top layer synthesized via interfacial polymerization.
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Janeca A, Rodrigues FSC, Gonçalves MC, Faria M. Novel Cellulose Acetate-Based Monophasic Hybrid Membranes for Improved Blood Purification Devices: Characterization under Dynamic Conditions. Membranes (Basel) 2021; 11:825. [PMID: 34832054 PMCID: PMC8624022 DOI: 10.3390/membranes11110825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 02/01/2023]
Abstract
A novel cellulose acetate-based monophasic hybrid skinned amine-functionalized CA-SiO2-(CH2)3NH2 membrane was synthesized using an innovative method which combines the phase inversion and sol-gel techniques. Morphological characterization was performed by scanning electron microscopy (SEM), and the chemical composition was analyzed by Fourier transform infrared spectroscopy in attenuated total reflection mode (ATR-FTIR). The characterization of the monophasic hybrid CA-SiO2-(CH2)3NH2 membrane in terms of permeation properties was carried out in an in-house-built single hemodialysis membrane module (SHDMM) under dynamic conditions. Permeation experiments were performed to determine the hydraulic permeability (Lp), molecular weight cut-off (MWCO) and the rejection coefficients to urea, creatinine, uric acid, and albumin. SEM confirmed the existence of a very thin (<1 µm) top dense layer and a much thicker bottom porous surface, and ATR-FTIR showed the main bands belonging to the CA-based membranes. Permeation studies revealed that the Lp and MWCO of the CA-SiO2-(CH2)3NH2 membrane were 66.61 kg·h-1·m-2·bar-1 and 24.5 kDa, respectively, and that the Lp was 1.8 times higher compared to a pure CA membrane. Furthermore, the CA-SiO2-(CH2)3NH2 membrane fully permeated urea, creatinine, and uric acid while completely retaining albumin. Long-term filtration studies of albumin solutions indicated that fouling does not occur at the surface of the CA-SiO2-(CH2)3NH2 membrane.
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Affiliation(s)
- Adriana Janeca
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (A.J.); (F.S.C.R.); (M.C.G.)
| | - Flávia S. C. Rodrigues
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (A.J.); (F.S.C.R.); (M.C.G.)
- CeFEMA, Center of Physics and Engineering of Advanced Materials, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Maria Clara Gonçalves
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (A.J.); (F.S.C.R.); (M.C.G.)
- CQE, Centro de Química Estrutural, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Mónica Faria
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; (A.J.); (F.S.C.R.); (M.C.G.)
- CeFEMA, Center of Physics and Engineering of Advanced Materials, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Russo F, Marino T, Galiano F, Gzara L, Gordano A, Organji H, Figoli A. Tamisolve ® NxG as an Alternative Non-Toxic Solvent for the Preparation of Porous Poly (Vinylidene Fluoride) Membranes. Polymers (Basel) 2021; 13:polym13152579. [PMID: 34372182 PMCID: PMC8347625 DOI: 10.3390/polym13152579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 07/14/2021] [Accepted: 07/21/2021] [Indexed: 01/17/2023] Open
Abstract
Tamisolve® NxG, a well-known non-toxic solvent, was used for poly(vinylidene fluoride) (PVDF) membranes preparation via a non-solvent-induced phase separation (NIPS) procedure with water as a coagulation bath. Preliminary investigations, related to the study of the physical/chemical properties of the solvent, the solubility parameters, the gel transition temperature and the viscosity of the polymer-solvent system, confirmed the power of the solvent to solubilize PVDF polymer for membranes preparation. The role of polyvinylpyrrolidone (PVP) and/or poly(ethylene glycol) (PEG), as pore former agents in the dope solution, was studied along with different polymer concentrations (10 wt%, 15 wt% and 18 wt%). The produced membranes were then characterized in terms of morphology, thickness, porosity, contact angle, atomic force microscopy (AFM) and infrared spectroscopy (ATR-FTIR). Pore size measurements, pore size distribution and water permeability (PWP) tests placed the developed membranes in the ultrafiltration (UF) and microfiltration (MF) range. Finally, PVDF membrane performances were investigated in terms of rejection (%) and permeability recovery ratio (PRR) using methylene blue (MB) in water solution to assess their potential application in separation and purification processes.
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Affiliation(s)
- Francesca Russo
- Institute on Membrane Technology (ITM-CNR), Via P. Bucci 17c, 87036 Rende, CS, Italy; (F.R.); (F.G.); (A.G.)
| | - Tiziana Marino
- Institute on Membrane Technology (ITM-CNR), Via P. Bucci 17c, 87036 Rende, CS, Italy; (F.R.); (F.G.); (A.G.)
- Correspondence: (T.M.); (A.F.)
| | - Francesco Galiano
- Institute on Membrane Technology (ITM-CNR), Via P. Bucci 17c, 87036 Rende, CS, Italy; (F.R.); (F.G.); (A.G.)
| | - Lassaad Gzara
- Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia; (L.G.); (H.O.)
| | - Amalia Gordano
- Institute on Membrane Technology (ITM-CNR), Via P. Bucci 17c, 87036 Rende, CS, Italy; (F.R.); (F.G.); (A.G.)
| | - Hussam Organji
- Center of Excellence in Desalination Technology, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia; (L.G.); (H.O.)
| | - Alberto Figoli
- Institute on Membrane Technology (ITM-CNR), Via P. Bucci 17c, 87036 Rende, CS, Italy; (F.R.); (F.G.); (A.G.)
- Correspondence: (T.M.); (A.F.)
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Zahid M, Akram S, Rashid A, Rehan ZA, Javed T, Shabbir R, Hessien MM, El-Sayed ME. Investigating the Antibacterial Activity of Polymeric Membranes Fabricated with Aminated Graphene Oxide. Membranes (Basel) 2021; 11:510. [PMID: 34357160 PMCID: PMC8306018 DOI: 10.3390/membranes11070510] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 06/27/2021] [Accepted: 07/02/2021] [Indexed: 11/18/2022]
Abstract
A novel, functionalized graphene oxide-based cellulose acetate membrane was fabricated using the phase inversion method to improve the membrane characteristics and performance. We studied the effect of aminated graphene oxide (NH2-GO) composite on the CA membrane characteristics and performance in terms of membrane chemistry, hydrophilicity, thermal and mechanical stability, permeation flux, and antibacterial activity. The results of contact angle and water flux indicate the improved hydrophilic behavior of composite membranes in comparison to that of the pure CA membrane. The AGO-3 membrane showed the highest water flux of about 153 Lm-2h-1. The addition of hydrophilic AGO additive in CA membranes enhanced the antibacterial activity of AGO-CA membranes, and the thermal stability of the resulting membrane also improved since it increases the Tg value in comparison to that of a pristine CA membrane. The aminated graphene oxide (NH2-GO) was, therefore, found to be a promising additive for the fabrication of composite membranes with potent applications in wastewater treatment.
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Affiliation(s)
- Muhammad Zahid
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan;
| | - Saba Akram
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan; (S.A.); (A.R.)
| | - Anum Rashid
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan; (S.A.); (A.R.)
| | - Zulfiqar Ahmad Rehan
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan; (S.A.); (A.R.)
| | - Talha Javed
- Department of Agronomy, University of Agriculture, Faisalabad 38000, Pakistan;
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Rubab Shabbir
- College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Mahmoud M. Hessien
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21974, Saudi Arabia;
| | - Mahmoud E. El-Sayed
- Department of Food Science and Technology, Faculty of Agriculture, Tanta University, Tanta 21527, Egypt;
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Nguyen KD. Temperature Effect of Water Coagulation Bath on Chitin Fiber Prepared through Wet-Spinning Process. Polymers (Basel) 2021; 13:1909. [PMID: 34201247 PMCID: PMC8229369 DOI: 10.3390/polym13121909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/04/2021] [Accepted: 06/05/2021] [Indexed: 12/02/2022] Open
Abstract
Chitin was chemically extracted from crab shell waste and dissolved in N,N-dimethyl acetamine/5% lithium chloride (DMAc/5% LiCl) at room temperature to obtain 1% and 2% concentrations of chitin solution. Chitin fibers were prepared by phase inversion at different temperatures of water coagulation bath at 5, 20, and 60 °C. The deconvolution of FTIR spectra indicated that the area portion of the intermolecular hydrogen bonding NH…OC increased at 60 °C due to the higher density of the chitin segment in the fiber. As a result, scanning electron microscope (SEM) measurement suggests that a denser structure of the chitin fiber was observed when the temperature of the coagulation bath increased. In addition, the resultant chitin fibers generated better mechanical properties relative to the amount of chitin concentration and temperature. At 2% of chitin solution, the tensile strength significantly increased from 80 to 182 MPa for the fiber obtained at temperatures of 5 and 60 °C of the water coagulation bath, respectively. Meanwhile, the water content in the fiber significantly decreased from 1101% to 335%. This green synthesis route has high potential for the fabrication of the fiber as future material of interest for biomedical application.
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Affiliation(s)
- Khoa Dang Nguyen
- Faculty of Technology, Van Lang University, 45 Nguyen Khac Nhu, Co Giang Ward, District 1, Ho Chi Minh 700000, Vietnam
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Doyan A, Leong CL, Bilad MR, Kurnia KA, Susilawati S, Prayogi S, Narkkun T, Faungnawakij K. Cigarette Butt Waste as Material for Phase Inverted Membrane Fabrication Used for Oil/Water Emulsion Separation. Polymers (Basel) 2021; 13:polym13121907. [PMID: 34201192 PMCID: PMC8226596 DOI: 10.3390/polym13121907] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 01/28/2023] Open
Abstract
The increasing rate of oil and gas production has contributed to a release of oil/water emulsion or mixtures to the environment, becoming a pressing issue. At the same time, pollution of the toxic cigarette butt has also become a growing concern. This study explored utilization of cigarette butt waste as a source of cellulose acetate-based (CA) polymer to develop a phase inverted membrane for treatment of oil/water emulsion and compare it with commercial polyvinylidene difluoride (PVDF) and polysulfone (PSF). Results show that the CA-based membrane from waste cigarette butt offers an eco-friendly material without compromising the separation efficiency, with a pore size range suitable for oil/water emulsion filtration with the rejection of >94.0%. The CA membrane poses good structural property similar to the established PVDF and PSF membranes with equally asymmetric morphology. It also poses hydrophilicity properties with a contact angle of 74.5°, lower than both PVDF and PSF membranes. The pore size of CA demonstrates that the CA is within the microfiltration range with a mean flow pore size of 0.17 µm. The developed CA membrane shows a promising oil/water emulsion permeability of 180 L m-2 h-1 bar-1 after five filtration cycles. However, it still suffers a high degree of irreversible fouling (>90.0%), suggesting potential future improvements in terms of membrane fouling management. Overall, this study demonstrates a sustainable approach to addressing oil/water emulsion pollution treated CA membrane from cigarette butt waste.
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Affiliation(s)
- Aris Doyan
- Master of Science Education Program, University of Mataram, Jl. Majapahit No. 62, Mataram 83125, Indonesia;
- Physics Education, FKIP, University of Mataram, Jl. Majapahit No. 62, Mataram 83125, Indonesia
- Correspondence: (A.D.); (M.R.B.)
| | - Chew Lee Leong
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia;
| | - Muhammad Roil Bilad
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Malaysia;
- Faculty of Applied Science and Technology, Universitas Pendidikan Mandalika (UNDIKMA), Jl. Pemuda No. 59A, Mataram 83126, Indonesia;
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong BE1410, Brunei
- Correspondence: (A.D.); (M.R.B.)
| | - Kiki Adi Kurnia
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung 40132, Indonesia;
| | - Susilawati Susilawati
- Master of Science Education Program, University of Mataram, Jl. Majapahit No. 62, Mataram 83125, Indonesia;
- Physics Education, FKIP, University of Mataram, Jl. Majapahit No. 62, Mataram 83125, Indonesia
| | - Saiful Prayogi
- Faculty of Applied Science and Technology, Universitas Pendidikan Mandalika (UNDIKMA), Jl. Pemuda No. 59A, Mataram 83126, Indonesia;
| | - Thanitporn Narkkun
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani 12120, Thailand; (T.N.); (K.F.)
| | - Kajornsak Faungnawakij
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pathum Thani 12120, Thailand; (T.N.); (K.F.)
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Kim KY, Moreno-Jimenez DA, Efstathiadis H. Electrochemical Ammonia Recovery from Anaerobic Centrate Using a Nickel-Functionalized Activated Carbon Membrane Electrode. Environ Sci Technol 2021; 55:7674-7680. [PMID: 33970609 DOI: 10.1021/acs.est.1c01703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Ammonia (NH3) recovery from used water (previously wastewater) is highly desirable to depart from fossil fuel-dependent NH3 production and curb nitrogen emission to the environment. Electrochemical NH3 recovery is promising since it can simply convert aqueous NH4+ to gaseous NH3 using cathodic reactions (OH- generation). However, the use of a separated electrode and membrane imposes high resistances to the cathodic reaction and NH3 transfer. This study examined an activated carbon (AC)-based membrane electrode functionalized with nickel to electrochemically recover NH3 from synthetic anaerobic centrate. The membrane electrode was fabricated using nickel-adsorbed AC powder and a polyvinylidene fluoride (PVDF) binder, and the PVDF membrane layer was formed at the electrode surface by phase inversion. The NH3-N recovery flux of 50.3 ± 0.4 gNH3-N/m2/d was produced at 17.1 A/m2 with a recovery solution at pH 7, and NH3-N fluxes and energy consumptions were improved as the recovery solution became acidic (62.2 ± 2.1 gNH3-N/m2/d with 16.0 ± 1.6 kWh/kgNH3-N at pH 2). Increasing PVDF loadings did not impact the electrochemical performances of the Ni/AC-PVDF electrode, but slightly lower (7%) NH3-N fluxes were obtained with higher PVDF loadings. Ni dissolution (3.7-6.0% loss) was affected by the recovery solution pH, but it did not impact the performances over the cycles.
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Affiliation(s)
- Kyoung-Yeol Kim
- Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Daniel A Moreno-Jimenez
- Department of Environmental and Sustainable Engineering, University at Albany, State University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Harry Efstathiadis
- College of Nanoscale Science and Engineering, State University of New York Polytechnic Institute, 257 Fuller Road, Albany, New York 12203, United States
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36
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Lim K, Lee YS, Simoska O, Dong F, Sima M, Stewart RJ, Minteer SD. Rapid Entrapment of Phenazine Ethosulfate within a Polyelectrolyte Complex on Electrodes for Efficient NAD + Regeneration in Mediated NAD +-Dependent Bioelectrocatalysis. ACS Appl Mater Interfaces 2021; 13:10942-10951. [PMID: 33646753 DOI: 10.1021/acsami.0c22302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Over the past two decades, the designs of redox polymers have become critical to the field of mediated bioelectrocatalysis and are used in commercial glucose biosensors, as well as other bioelectrochemical applications (e.g., energy harvesting). These polymers are specifically used to immobilize redox mediators on electrode surfaces, allowing for self-exchange-based conduction of electrons from enzymes far from the electrode to the electrode surface. However, the synthesis of redox polymers is challenging and results in large batch-to-batch variability. Herein, we report a rapid entrapment of mediators for NAD+-dependent bioelectrocatalysis within reverse ionically condensed polyelectrolytes. A high ionic strength aqueous solution of oppositely charged polyelectrolytes, composed of cationic polyguanidinium (PG) chloride and anionic sodium hexametaphosphate (P6), undergoes phase inversion into a solid microporous polyelectrolyte complex (PEC) when introduced into a low ionic strength aqueous solution. The ionic strength-triggered phase inversion of PGP6 solutions was investigated as a means to entrap mediators on the surface of electrodes for mediated bioelectrocatalysis. Compared to the traditional cross-linked immobilizations using redox polymers, this phase inversion takes place within seconds and requires up to 60 min for complete stabilization. In this work, redox mediator phenazine ethosulfate (PES) was entrapped within PGP6 on electrode surfaces for nicotinamide adenine dinucleotide (NAD+)-dependent bioelectrocatalysis. In the bulk solution, NAD+-dependent dehydrogenase enzymes catalyze the oxidation of the substrate while reducing NAD to reduced nicotinamide adenine dinucleotide (NADH). The resulting NADH is reoxidized to NAD+ by the entrapped PES that gets reduced on the electrode, completing the NAD+-regeneration-based bioelectrocatalysis. To show the use of these new materials in an application, biofuel cells were evaluated using four different anodic enzyme systems (alcohol dehydrogenase, lactate hydrogenase, glycerol dehydrogenase, and glucose dehydrogenase).
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Affiliation(s)
- Koun Lim
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Yoo Seok Lee
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Olja Simoska
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Fangyuan Dong
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Monika Sima
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, United States
| | - Russell J Stewart
- Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah 84112, United States
| | - Shelley D Minteer
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
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Bărdacă Urducea C, Nechifor AC, Dimulescu IA, Oprea O, Nechifor G, Totu EE, Isildak I, Albu PC, Bungău SG. Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method. Nanomaterials (Basel) 2020; 10:nano10122349. [PMID: 33256125 PMCID: PMC7760602 DOI: 10.3390/nano10122349] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 12/04/2022]
Abstract
The preparation of membranes from polymer solutions by the phase inversion method, the immersion—precipitation technique has proved since the beginning of obtaining technological membranes the most versatile and simple possibility to create polymeric membrane nanostructures. Classically, the phase inversion technique involves four essential steps: Preparation of a polymer solution in the desired solvent, the formation of the polymer solution film on a flat support, the immersion of the film in a coagulation bath containing polymer solvents, and membrane conditioning. All phase inversion stages are important for the prepared membrane’s nanostructure and have been studied in detail for more than six decades. In this paper, we explored, through an electrochemical technique, the influence of the contact time with the polymer film’s environment until the introduction into the coagulation bath. The system chosen for membrane preparation is polysulfone-dimethylformamide-aqueous ethanol solution (PSf-DMF-EW). The obtained nanostructured membranes were characterized morphologically and structurally by scanning electron microscopy (SEM) and thermal analysis (TA), and in terms of process performance through water permeation and bovine serum albumin retention (BSA). The membrane characteristics were correlated with the polymeric film exposure time to the environment until the contact with the coagulation bath, following the diagram of the electrochemical parameters provided by the electrochemical technique.
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Affiliation(s)
- Cristina Bărdacă Urducea
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
| | - Aurelia Cristina Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
- Correspondence: (A.C.N.); (E.E.T.)
| | - Ioana Alina Dimulescu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
| | - Ovidiu Oprea
- Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, University Politehnica of Bucharest, 011061 Bucharest, Romania;
| | - Gheorghe Nechifor
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
| | - Eugenia Eftimie Totu
- Analytical Chemistry and Environmental Engineering Department, University Politehnica of Bucharest, 011061 Bucharest, Romania; (C.B.U.); (I.A.D.); (G.N.)
- Correspondence: (A.C.N.); (E.E.T.)
| | - Ibrahim Isildak
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34210 Esenler-Istanbul, Turkey;
| | - Paul Constantin Albu
- IFIN Horia Hulubei, Radioisotopes & Radiat Metrol Dept DRMR, 30 Reactorului Str, 023465 Magurele, Romania;
| | - Simona Gabriela Bungău
- Faculty of Medicine and Pharmacy, University of Oradea, 1 Universităţii Str., Oradea, 410087 Bihor, Romania;
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Peixoto I, Faria M, Gonçalves MC. Synthesis and Characterization of Novel Integral Asymmetric Monophasic Cellulose-Acetate/Silica/Titania and Cellulose-Acetate/Titania Membranes. Membranes (Basel) 2020; 10:E195. [PMID: 32825422 DOI: 10.3390/membranes10090195] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/18/2020] [Accepted: 08/18/2020] [Indexed: 02/05/2023]
Abstract
Two series of novel integral asymmetric monophasic hybrid membranes, cellulose acetate/silica/titania (CA/SiO2/TiO2—series 1) and cellulose acetate/titania (CA/TiO2—series 2), were developed by the coupling of sol-gel technology and a modified version of the phase inversion technique. SEM micrographs confirmed the integral asymmetric structure of all membranes. ATR-FTIR and ICP-OES results showed that, for the membranes in series 1, TiO2 is covalently bound to SiO2, which, in turn, is covalently bound to CA, while for the membranes in series 2, TiO2 is directly and covalently bound to the CA matrix. Permeation experiments revealed that the permeation performance of the membranes in series 1 is unaffected by the introduction of TiO2. In contrast, the introduction of TiO2 in the series 2 membranes increased the hydraulic permeability by a factor of at least 2 when compared to the pristine CA membrane and that incremental additions of TiO2 further increased the Lp.
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Huang XM, Luo ZJ, Guo J, Ruan QJ, Wang JM, Yang XQ. Enzyme-Adsorbed Chitosan Nanogel Particles as Edible Pickering Interfacial Biocatalysts and Lipase-Responsive Phase Inversion of Emulsions. J Agric Food Chem 2020; 68:8890-8899. [PMID: 32687343 DOI: 10.1021/acs.jafc.0c00116] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Here, a simple food-grade Pickering emulsion system is prepared and adopted for biphasic biocatalytic reactions. The chitosan nanogels were prepared with strong dispersion of chitosan aggregates approaching neutral pH and then used as the particle emulsifiers to produce oil-in-water Pickering emulsions. The chitosan nanogel exhibited high affinity to negatively charged lipase. As a result of increasing the biphasic interfacial area and loading amount on the oil-water interface, the catalysis activity of lipase and recycling and pH stability were highly enhanced through colorimetric determination of p-nitrophenol (the hydrolysis product of p-nitrophenyl palmitate). A general strategy was proposed to obtain stimulus-responsive Pickering emulsions that can undergo phase inversion. The in situ modification of the wettability of chitosan nanogel could be attributed to the interaction between nanogel and free fatty acids, which was triggered by lipase hydrolysis. This would permit a rapid and controlled release of hydrophobic active components in response to enzymatic triggers.
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Affiliation(s)
- Xiao-Mei Huang
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Zhao-Jiao Luo
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Jian Guo
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Qi-Jun Ruan
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
- Guangdong Engineering and Technology Research Center for Effective Component Testing and Risk Material Rapid Screening of Functional Food, Guangdong Institute of Analysis (China National Analytical Center Guangzhou), Guangdong Academy of Sciences, Guangzhou, Guangdong 510070, People's Republic of China
| | - Jin-Mei Wang
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
| | - Xiao-Quan Yang
- Protein Research and Development Center, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, National Engineering Laboratory of Wheat & Corn Further Processing, South China University of Technology, Guangzhou, Guangdong 510640, People's Republic of China
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40
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Alam MM, Wang Y, Jiang C, Xu T, Liu Y, Xu T. A Novel Anion Exchange Membrane for Bisulfite Anion Separation by Grafting a Quaternized Moiety through BPPO via Thermal-Induced Phase Separation. Int J Mol Sci 2020; 21:E5782. [PMID: 32806611 DOI: 10.3390/ijms21165782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 02/01/2023] Open
Abstract
Ion-exchange membranes are the core elements for an electrodialysis (ED) separation process. Phase inversion is an effective method, particularly for commercial membrane production. It introduces two different mechanisms, i.e., thermal induced phase separation (TIPS) and diffusion induced phase separation (DIPS). In this study, anion exchange membranes (AEMs) were prepared by grafting a quaternized moiety (QM,2-[dimethylaminomethyl]naphthalen-1-ol) through brominated poly (2,6-dimethyl-1,4-phenylene oxide) (BPPO) via the TIPS method. Those membranes were applied for selective bisulfite (HSO3-) anion separation using ED. The membrane surface morphology was characterized by SEM, and the compositions were magnified using a high-resolution transmission electron microscope (HRTEM). Notably, the membranes showed excellent substance stability in an alkali medium and in grafting tests performed in a QM-soluble solvent. The ED experiment indicated that the as-prepared membrane exhibited better HSO3- separation performance than the state-of-the-art commercial Neosepta AMX (ASTOM, Japan) membrane.
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Mulyati S, Muchtar S, Arahman N, Meirisa F, Syamsuddin Y, Zuhra Z, Rosnelly CM, Shamsuddin N, Mat Nawi NI, Wirzal MDH, Bilad MR, Takagi R, Matsuyama H. One-Pot Polymerization of Dopamine as an Additive to Enhance Permeability and Antifouling Properties of Polyethersulfone Membrane. Polymers (Basel) 2020; 12:E1807. [PMID: 32806565 PMCID: PMC7464200 DOI: 10.3390/polym12081807] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 11/16/2022] Open
Abstract
This paper reports the fabrication of polyethersulfone membranes via in situ hydrogen peroxide-assisted polymerization of dopamine. The dopamine and hydrogen peroxide were introduced into the dope solution where the polymerization occurred, resulting in a single-step additive formation during membrane fabrication. The effectivity of modification was evaluated through characterizations of the resulting membranes in terms of chemical functional groups, surface morphology, porosity, contact angle, mechanical strength and filtration of humic acid solution. The results confirm that the polydopamine was formed during the dope solution mixing through peroxide-assisted polymerization as proven by the appearance of peaks associated OH and NH groups in the resulting membranes. The presence of polydopamine residual in the membrane matric enhances the pore properties in terms of size and porosity (by a factor of 10), and by lowering the hydrophilicity (from 69° to 53°) which leads to enhanced filtration flux of up to 217 L/m2 h. The presence of the residual polydopamine also enhances membrane surface hydrophilicity which improve the antifouling properties as shown from the flux recovery ratio of > 80%.
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Affiliation(s)
- Sri Mulyati
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Syawaliah Muchtar
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Nasrul Arahman
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Friska Meirisa
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Yanna Syamsuddin
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Zuhra Zuhra
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Cut Meurah Rosnelly
- Department of Chemical Engineering, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia; (S.M.); (N.A.); (F.M.); (Y.S.); (Z.Z.); (C.M.R.)
| | - Norazanita Shamsuddin
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, Jalan Tungku Link BE1410, Brunei;
| | - Normi Izati Mat Nawi
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia; (N.I.M.N.); (M.D.H.W.); (M.R.B.)
| | - Mohd Dzul Hakim Wirzal
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia; (N.I.M.N.); (M.D.H.W.); (M.R.B.)
| | - Muhammad Roil Bilad
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar 32610, Perak, Malaysia; (N.I.M.N.); (M.D.H.W.); (M.R.B.)
| | - Ryosuke Takagi
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, Rokkodai-Cho 1-1, Nadaku, Kobe 657-8501, Japan; (R.T.); (H.M.)
| | - Hideto Matsuyama
- Research Center for Membrane and Film Technology, Department of Chemical Science and Engineering, Kobe University, Rokkodai-Cho 1-1, Nadaku, Kobe 657-8501, Japan; (R.T.); (H.M.)
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Adam MR, Othman MHD, Sheikh Abdul Kadir SH, Mohd Sokri MN, Tai ZS, Iwamoto Y, Tanemura M, Honda S, Puteh MH, A Rahman M, Jaafar J. Influence of the Natural Zeolite Particle Size Toward the Ammonia Adsorption Activity in Ceramic Hollow Fiber Membrane. Membranes (Basel) 2020; 10:E63. [PMID: 32260422 DOI: 10.3390/membranes10040063] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 11/17/2022]
Abstract
Natural zeolite is widely used in removing ammonia via adsorption process because of its superior ion-exchange properties. Ceramic particle size affects the adsorptivity of particles toward ammonia. In this study, hollow fiber ceramic membrane (HFCM) was fabricated from natural zeolite via phase inversion. The effect of natural zeolite particle size toward the properties and performance of HFCM was evaluated. The results show that the HFCM with smaller particle sizes exhibited a more compact morphological structure with better mechanical strength. The adsorption performance of HFCM was significantly improved with smaller particle sizes because of longer residence time, as proven by the lower water permeability. A high adsorption performance of 96.67% was achieved for HFCM with the smallest particle size (36 μm). These findings provide a new perspective on the promising properties of the natural zeolite-derived HFCM for ammonia removal.
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Li Y, Wang X, Liang J, Wu K, Xu L, Wang J. Design of A High Performance Zeolite/Polyimide Composite Separator for Lithium-Ion Batteries. Polymers (Basel) 2020; 12:E764. [PMID: 32244570 DOI: 10.3390/polym12040764] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/04/2020] [Accepted: 03/10/2020] [Indexed: 11/16/2022] Open
Abstract
A zeolite/polyimide composite separator with a spongy-like structure was prepared by phase inversion methods based on heat-resistant polyimide (PI) polymer matrix and ZSM-5 zeolite filler, with the aim to improve the thermal stability and electrochemical properties of corresponding batteries. The separator exhibits enhanced thermal stability and no shrinkage up to 180 °C. The introduction of a certain number of ZSM-5 zeolites endows the composite separator with enhanced wettability and electrolyte uptake, better facilitating the free transport of lithium-ion. Furthermore, the composite separator shows a high ionic conductivity of 1.04 mS cm−1 at 25 °C, and a high decomposition potential of 4.7 V. Compared with the PP separator and pristine PI separator, the ZSM-5/PI composite separator based LiFePO4/Li cells have better rate capability (133 mAh g−1 at 2 C) and cycle performance (145 mAh g-1 at 0.5 C after 50 cycles). These results demonstrate that the ZSM-5/PI composite separator is promising for high-performance and high-safety lithium-ion batteries.
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44
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Busmann EF, Martínez DG, Lucas H, Mäder K. Phase inversion-based nanoemulsions of medium chain triglyceride as potential drug delivery system for parenteral applications. Beilstein J Nanotechnol 2020; 11:213-224. [PMID: 32082961 PMCID: PMC7006485 DOI: 10.3762/bjnano.11.16] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 12/05/2019] [Indexed: 06/10/2023]
Abstract
Lipid nanoemulsions are attractive drug delivery systems for lipophilic drugs. To produce nanoemulsions with droplets of very small diameter (<100 nm), we investigated thermotropic phase transitions as an alternative to the standard procedure of high-pressure homogenization. Employing shock dilution with ice-cold water during the phase inversion gives the opportunity to produce nanoemulsions without any use of potentially toxic organic solvents. The systematic investigation of the relation of the three involved components surfactant, aqueous phase and lipid phase showed that depending on the ratio of surfactant to lipid the emulsions contained particles of diameters between 16 and 175 nm with narrow polydispersity index distributions and uncharged surfaces. Nanoemulsions with particles of 50 and 100 nm in diameter showed very little toxicity to fibroblast cells in vitro. An unusual, exponential-like nonlinear increase in osmolality was observed with increasing concentration of the nonionic surfactant Kolliphor HS 15. The experimental results indicate, that nanoemulsions with particles of small and tunable size can be easily formed without homogenization by thermal cycling.
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Affiliation(s)
- Eike Folker Busmann
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Dailén García Martínez
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Henrike Lucas
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Karsten Mäder
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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45
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Li X, Zhang Y, Wang S, Liu Y, Ding Y, He G, Zhang N, Yu G. Hierarchically Porous C/Fe 3C Membranes with Fast Ion-Transporting Channels and Polysulfide-Trapping Networks for High-Areal-Capacity Li-S Batteries. Nano Lett 2020; 20:701-708. [PMID: 31841347 DOI: 10.1021/acs.nanolett.9b04551] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
We report here highly scalable yet stackable C/Fe3C membranes with fast ion-transport micro-/nanochannels and polysulfide-trapping networks via a facile phase-inversion process for high-areal-capacity Li-S batteries. The membrane cathodes with aligned channels and hierarchically porous networks significantly promote Li+ and electron transportation and meanwhile trap soluble polysulfide intermediates (LiPSs) effectively via strong chemical adsorption of the doped Fe3C nanoparticles in the membrane toward LiPSs. We further demonstrated that five-layer membrane electrodes with high S loading of 7.1 mg cm-2 were readily prepared via layer-by-layer stacking of the C/Fe3C membrane, which can deliver a high capacity of 726 mA h g-1 after 100 cycles, corresponding to an ultra-high-areal-capacity of 5.15 mA h cm-2 at a low electrolyte/sulfur (E/S) ratio of 6.4 μL mg-1. The scalable multifunctional membrane electrodes with excellent electrochemical performance under high-sulfur-loading and lean electrolyte conditions reveal its promising applications in practical Li-S batteries.
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Affiliation(s)
- Xiangcun Li
- State Key Laboratory of Fine Chemicals, Chemical Engineering Department , Dalian University of Technology , Dalian 116024 , China
| | - Yue Zhang
- State Key Laboratory of Fine Chemicals, Chemical Engineering Department , Dalian University of Technology , Dalian 116024 , China
| | - Shuting Wang
- State Key Laboratory of Fine Chemicals, Chemical Engineering Department , Dalian University of Technology , Dalian 116024 , China
| | - Yang Liu
- State Key Laboratory of Fine Chemicals, Chemical Engineering Department , Dalian University of Technology , Dalian 116024 , China
| | - Yu Ding
- Materials Science and Engineering Program and Department of Mechanical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Gaohong He
- State Key Laboratory of Fine Chemicals, Chemical Engineering Department , Dalian University of Technology , Dalian 116024 , China
| | - Ning Zhang
- State Key Laboratory of Fine Chemicals, Chemical Engineering Department , Dalian University of Technology , Dalian 116024 , China
| | - Guihua Yu
- Materials Science and Engineering Program and Department of Mechanical Engineering , The University of Texas at Austin , Austin , Texas 78712 , United States
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Li H, Li L, Zheng S, Wang X, Ma Z. High Temperature Resistant Separator of PVDF-HFP/DBP/C-TiO 2 for Lithium-Ion Batteries. Materials (Basel) 2019; 12:ma12172813. [PMID: 31480651 PMCID: PMC6747796 DOI: 10.3390/ma12172813] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/19/2019] [Accepted: 08/28/2019] [Indexed: 11/29/2022]
Abstract
To improve the thermal shrinkage and ionic conductivity of the separator for lithium-ion batteries, adding carboxylic titanium dioxide nanofiber materials into the matrix is proposed as an effective strategy. In this regard, a poly(vinylidene fluoride-hexafluoro propylene)/dibutyl phthalate/carboxylic titanium dioxide (PVDF-HFP/DBP/C-TiO2) composite separator is prepared with the phase inversion method. When the content of TiO2 nanofibers reaches 5%, the electrochemical performance of the battery and ion conductivity of the separator are optimal. The PVDF-HFP/DBP/C-TiO2 (5%) composite separator shows about 55.5% of porosity and 277.9% of electrolyte uptake. The PVDF-HFP/DBP/C-TiO2 (5%) composite separator has a superior ionic conductivity of 1.26 × 10 −3 S cm−1 and lower interface impedance at room temperature, which brings about better cycle and rate performance. In addition, the cell assembled with a PVDF-HFP/DBP/C-TiO2 separator can be charged or discharged normally and has an outstanding discharge capacity of about 150 mAh g−1 at 110 °C. The battery assembled with the PVDF-HFP/DBP/C-TiO2 composite separator exhibits excellent electrochemical performance under high and room temperature environments.
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Affiliation(s)
- Haijuan Li
- National-Provincial Laboratory of Special Function Thin Film Materials and School of Materials Science and Engineering Xiangtan University, Hunan 411105, China
| | - Ling Li
- National-Provincial Laboratory of Special Function Thin Film Materials and School of Materials Science and Engineering Xiangtan University, Hunan 411105, China
| | - Shuaizhi Zheng
- National-Provincial Laboratory of Special Function Thin Film Materials and School of Materials Science and Engineering Xiangtan University, Hunan 411105, China.
| | - Xinming Wang
- National-Provincial Laboratory of Special Function Thin Film Materials and School of Materials Science and Engineering Xiangtan University, Hunan 411105, China.
| | - Zengsheng Ma
- National-Provincial Laboratory of Special Function Thin Film Materials and School of Materials Science and Engineering Xiangtan University, Hunan 411105, China
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47
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Abdi S, Nasiri M. Enhanced Hydrophilicity and Water Flux of Poly(ether sulfone) Membranes in the Presence of Aluminum Fumarate Metal-Organic Framework Nanoparticles: Preparation and Characterization. ACS Appl Mater Interfaces 2019; 11:15060-15070. [PMID: 30943002 DOI: 10.1021/acsami.9b01848] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The aim of this study is to examine the effect of the addition of aluminum fumarate (AlFu) nanoparticles on the properties of poly(ether sulfone) (PES) membranes, where the AlFu nanoparticles were synthesized as the nanofillers with the metal-organic framework and their structure was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray powder diffraction (XRD), and field emission scanning electron microscopy (FESEM) analyses. Subsequently, PES/AlFu mixed-matrix membranes (MMMs) were fabricated in different weight percentages of nanofiller through the phase inversion method and the membrane characterization was accomplished by FTIR, XRD, FESEM, transmission electron microscopy, atomic force microscopy, energy-dispersive X-ray spectroscopy, and elemental mapping analyses. The effect of the addition of nanoparticles on the membrane properties was investigated by measuring the membrane hydrophilicity, pure water flux, solute rejection, and fouling resistance using a dead-end cell under constant pressure and bovine serum albumin as a foulant. The molecular weight cutoff (MWCO) of MMMs was measured by the rejection of poly(ethylene glycol) in various molecular weights, and the membrane surface roughness, porosity, and mean pore radius were calculated. The results showed that AlFu nanoparticles increased the hydrophilicity and porosity of the neat PES membranes and consequently increased the water permeability such that MMM including 0.75 wt % of AlFu possessed the maximum porosity (62.2%), mean pore radius (10.2 nm), and MWCO (154 kDa). Furthermore, this membrane exhibits a superlative flux recovery and minimal total resistance in the antifouling properties examinations.
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Affiliation(s)
- Sara Abdi
- Faculty of Chemical, Petroleum, and Gas Engineering , Semnan University , Semnan 35195-363 , Iran
| | - Masoud Nasiri
- Faculty of Chemical, Petroleum, and Gas Engineering , Semnan University , Semnan 35195-363 , Iran
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48
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Fei F, Le Phuong HA, Blanford CF, Szekely G. Tailoring the Performance of Organic Solvent Nanofiltration Membranes with Biophenol Coatings. ACS Appl Polym Mater 2019; 1:452-460. [PMID: 32051963 PMCID: PMC7006363 DOI: 10.1021/acsapm.8b00161] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Accepted: 01/29/2019] [Indexed: 05/30/2023]
Abstract
This study reports a systematic investigation of fine-tuning the filtration performance of nanofiltration membranes with biophenol coatings to produce solvent-resistant membranes with 390-1550 g mol-1 molecular weight cutoff (MWCO) and 0.5-40 L m-2 h-1 bar-1 permeance. Six kinds of inexpensive, commercial biophenols (dopamine, tannic acid, vanillyl alcohol, eugenol, morin, and quercetin) were subjected to identical oxidant-promoted polymerization to coat six kinds of loose asymmetric membrane supports: polyimide (PI), polyacrylonitrile (PAN), polysulfone (PSf), polyvinylidene difluoride (PVDF), polybenzimidazole (PBI), and polydimethylsiloxane (PDMS). The coatings were characterized by Fourier-transform infrared spectroscopy (FTIR), and the morphologies were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The long-term stability of 42 membranes were tested in 12 organic solvents, including emerging green solvents MeTHF and Cyrene. The biophenol coatings led to tighter membranes with a decrease in MWCO of 12-79% at a penalty of a 22-92% permeance decrease in acetone.
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Affiliation(s)
- Fan Fei
- School
of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Hai Anh Le Phuong
- School
of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
- School
of Chemical Engineering and Analytical Science, University of Manchester, The Mill, Sackville Street, Manchester M1 3BB, United Kingdom
| | - Christopher F. Blanford
- School
of Materials, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdom
- Manchester
Institute of Biotechnology, University of
Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Gyorgy Szekely
- School
of Chemical Engineering and Analytical Science, University of Manchester, The Mill, Sackville Street, Manchester M1 3BB, United Kingdom
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49
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Li X, Qin L, Zhang Y, Xu Z, Tian L, Guo X, Zhang G. Self-Assembly of Mn(II)-Amidoximated PAN Polymeric Beads Complex as Reusable Catalysts for Efficient and Stable Heterogeneous Electro-Fenton Oxidation. ACS Appl Mater Interfaces 2019; 11:3925-3936. [PMID: 30620170 DOI: 10.1021/acsami.8b18704] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A facile postsynthetic amidoxime modification method was reported on the preparation of transition-metal ions (Mn, Fe, and Co)-polyacrylonitrile (PAN) polymeric beads complex as reusable catalysts for efficient and stable heterogeneous electro-Fenton oxidation. Through one-step phase inversion, low-cost and chemically resistant polymeric PAN beads were fabricated on a large scale with controllable sizes and abundant porous structure. The postfunctionalization strategy led more active sites to be uniformly distributed into modified PAN beads owing to the favorable channel confined effect and chelate coordination. Compared with pure PAN beads, the modified composite catalysts exhibited remarkably higher activity and stability in electro-Fenton oxidation over wide pH range of 3-10 without any addition of H2O2. By analysis, the grafted amidoxime group was extremely beneficial for improving metal loading and binding force between active sites and organic supports, which accelerated the active sites autocatalytic cycle to promote H2O2 activation by means of excited electron transfer from composites' functional groups. The catalytic activity of Mn-amidoximated PAN evaluated by the turnover frequency was 15 times more than that of traditional iron oxide and very competitive to the reported metal-organic framework-based composites. Moreover, a strong metal and polymeric support interaction significantly enhanced the stabilization of active sites dispersed in porous matrix and solved the ever-present problem of metallic ions leaching to the greatest extent. The scalable introduction of functionalities into sophisticated structures after host framework synthesis will bring valuable insights to develop highly efficient and stable heterogeneous catalysts for green electrochemical oxidation in practical application.
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Affiliation(s)
- Xiong Li
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Lei Qin
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Yufan Zhang
- Department of Mechanical Engineering, College of Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Zehai Xu
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Lin Tian
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
| | - Xinwen Guo
- State Key Laboratory of Fine Chemicals, Department of Catalysis Chemistry and Engineering , Dalian University of Technology , Dalian 116012 , China
| | - Guoliang Zhang
- Institute of Oceanic and Environmental Chemical Engineering, State Key Lab Breeding Base of Green Chemical Synthesis Technology , Zhejiang University of Technology , Hangzhou 310014 , China
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50
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Koromilas ND, Anastasopoulos C, Oikonomou EK, Kallitsis JK. Preparation of Porous Polymeric Membranes Based on a Pyridine Containing Aromatic Polyether Sulfone. Polymers (Basel) 2019; 11:E59. [PMID: 30960043 PMCID: PMC6402226 DOI: 10.3390/polym11010059] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/15/2018] [Accepted: 12/24/2018] [Indexed: 11/26/2022] Open
Abstract
Polymeric membranes, based on a polysulfone-type aromatic polyether matrix, were successfully developed via the non-solvent induced phase separation (NIPS) method. The polyethersulfone type polymer poly[2-(4-(diphenylsulfonyl)-phenoxy)-6-(4-phenoxy) pyridine] (PDSPP) was used as the membrane matrix, and mixed with its sulfonated derivative (SPDSPP) and a polymeric porogen. The SPDPPP was added to impart hydrophilicity, while at the same time maintaining the interactions with the non-sulfonated aromatic polyether forming the membrane matrix. Different techniques were used for the membranes' properties characterization. The results revealed that the use of the non-sulfonated and sulfonated polymers of the same polymeric backbone, at certain compositions, can lead to membranes with controllable porosity and hydrophilicity.
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Affiliation(s)
- Nikos D Koromilas
- Department of Chemistry, University of Patras, GR⁻26504 Patras, Greece.
- FORTH/ICE-HT, Stadiou str., P.O. Box 1414, GR⁻26504 Rio-Patras, Greece.
| | | | - Evdokia K Oikonomou
- Laboratoire Matière et Systèmes Complexes, UMR 7057 CNRS Université Denis Diderot Paris-VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75205 Paris, France.
| | - Joannis K Kallitsis
- Department of Chemistry, University of Patras, GR⁻26504 Patras, Greece.
- FORTH/ICE-HT, Stadiou str., P.O. Box 1414, GR⁻26504 Rio-Patras, Greece.
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