Membranes and Membrane Technologies最新文献_第2页

Characterization of New Experimental Materials for Hemodialysis Membranes and Simulation of Urea Dialysis Process with Their Use 血液透析膜新实验材料的特性及其使用的尿素透析过程模拟

IF 2

Membranes and Membrane Technologies Pub Date : 2024-10-27 DOI: 10.1134/S2517751624600286

A. E. Kozmai, M. V. Porozhnyy, V. V. Gil, D. S. Lopatin, A. V. Rodichenko, I. V. Voroshilov, V. V. Nikonenko

{"title":"Characterization of New Experimental Materials for Hemodialysis Membranes and Simulation of Urea Dialysis Process with Their Use","authors":"A. E. Kozmai, M. V. Porozhnyy, V. V. Gil, D. S. Lopatin, A. V. Rodichenko, I. V. Voroshilov, V. V. Nikonenko","doi":"10.1134/S2517751624600286","DOIUrl":"10.1134/S2517751624600286","url":null,"abstract":"The acute shortage of hemodialysis cartridges in Russia, resulting from restrictions imposed by the European Union on the supply of high-tech equipment, has necessitated the development of domestically produced, cost-effective, and efficient hemodialysis membranes. In this study, experimental membranes based on polysulfone were developed and characterized. The effects of different pore-forming agents, polyethylene glycol and polyvinylpyrrolidone, on the structure and transport properties of the membranes have been compared. A non-steady state one-dimensional mathematical model of urea dialysis was proposed, with a key feature being the consideration of the membrane’s microheterogeneous structure. A comparison of the modeling results with experimental data on the time-dependent urea concentration in the dialysate compartment of the dialysis system indicates that the model accurately describes the system under study. A theoretical evaluation of the efficiency of the developed membrane material under conditions relevant to the hemodialysis process has been conducted, along with a comparison of urea removal performance with Nephral ST hemodialysis cartridges from Baxter, a company with a significant presence in the global market. The results have shown that the polysulfone-based membrane produced using polyvinylpyrrolidone demonstrates performance slightly inferior to that of commercially available cartridges, highlighting its potential for use in the production of hollow fiber membranes for hemodialysis cartridges.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 3","pages":"181 - 192"},"PeriodicalIF":2.0,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Nature and Charge of Counterions and Co-Ions on Electrotransport Properties of Heterogeneous Anion Exchange Membranes 反离子和辅离子的性质和电荷对异质阴离子交换膜电迁移特性的影响

IF 2

Membranes and Membrane Technologies Pub Date : 2024-10-27 DOI: 10.1134/S2517751624600274

N. V. Loza, N. A. Kutenko

引用次数: 0

Selective Extraction of Lithium Cations from Mixture of Alkali Metal Chlorides Using Electrobaromembrane Process 利用电霸膜工艺从碱金属氯化物混合物中选择性提取锂阳离子

IF 2

Membranes and Membrane Technologies Pub Date : 2024-10-27 DOI: 10.1134/S2517751624600304

D. Yu. Butylskii, V. A. Troitskiy, N. V. Smirnova, N. D. Pismenskaya, P. Yu. Apel, I. V. Blonskaya, V. V. Nikonenko

{"title":"Selective Extraction of Lithium Cations from Mixture of Alkali Metal Chlorides Using Electrobaromembrane Process","authors":"D. Yu. Butylskii, V. A. Troitskiy, N. V. Smirnova, N. D. Pismenskaya, P. Yu. Apel, I. V. Blonskaya, V. V. Nikonenko","doi":"10.1134/S2517751624600304","DOIUrl":"10.1134/S2517751624600304","url":null,"abstract":"The problem of low-reagent separation of Na+, K+, and Li+ cations is becoming increasingly important in connection with the search for new technologies for the extraction of lithium from brines and the recovery of this valuable element from already used energy sources. This paper presents the results of testing the electrobaromembrane process, in which the gradients of the electric field and pressure field are directed in opposite directions. The experiments were carried out in a laboratory flow cell, the desalting and concentration chambers of which are separated by a track-etched membrane and limited by MA-41 anion-exchange membranes. The working area of each membrane is 30 cm2. The processed solution contains 70, 75, and 55 mmol/L of LiCl, KCl, and NaCl, respectively. It has been shown that at a current density of 11.7 mA/cm2 and a pressure difference of 0.20 bar in the desalting circuit, it is possible to ensure an accumulation rate of Li+ cations equal to 0.05 mol/(m2 h), and a rate of loss of Na+ and K+ cations from this circuit, equal to –0.09 and –0.25 mol/(m2 h), respectively. Factors that can influence the efficiency of separation of Li+ and Na+, K+ are considered.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 3","pages":"162 - 170"},"PeriodicalIF":2.0,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Homogeneous Anion-Exchange Membrane Based on Copolymer of N,N-Diallyl-N,N-dimethylammonium Chloride and Commercial Anion-Exchange Membranes in Electrodialysis Processing of Dilute Sodium Chloride Solutions 基于 N,N-二烯丙基-N,N-二甲基氯化铵共聚物的均相阴离子交换膜与商用阴离子交换膜在稀氯化钠溶液电渗析处理中的比较

IF 2

Membranes and Membrane Technologies Pub Date : 2024-10-27 DOI: 10.1134/S2517751624600407

D. A. Bondarev, A. A. Samoilenko, S. S. Mel’nikov

{"title":"Comparison of Homogeneous Anion-Exchange Membrane Based on Copolymer of N,N-Diallyl-N,N-dimethylammonium Chloride and Commercial Anion-Exchange Membranes in Electrodialysis Processing of Dilute Sodium Chloride Solutions","authors":"D. A. Bondarev, A. A. Samoilenko, S. S. Mel’nikov","doi":"10.1134/S2517751624600407","DOIUrl":"10.1134/S2517751624600407","url":null,"abstract":"This study investigates the electrodialysis processing of a dilute sodium chloride solution using commercial anion-exchange membranes—heterogeneous MA-41, homogeneous Neosepta AMX, and an experimental homogeneous membrane MA-1. The rate of desalination and the limiting current value for the examined anion-exchange membranes increase in the order of MA-41, MA-1, AMX. It has been found that for commercial membranes, the desalination process under a constant potential difference across the membrane is accompanied by a transition to an overlimiting state and the development of coupled effects of concentration polarization. For the AMX membrane, beneficial mass transfer is enhanced by electroconvection, whereas for the MA-41 membrane, the salt ion flux decreases due to the occurrence of water dissociation. For the MA-1 membrane, decreasing the solution concentration leads to a transition of the system to a pre-limiting state, which may be associated with a significant contribution of equilibrium electroconvection to ion transfer in dilute solutions in electromembrane systems with this membrane. This difference in the properties of the MA-1 and AMX membranes results in higher mass transfer coefficients for the MA-1 membrane compared to the AMX membrane at potential jumps of 1 and 2 V. The most optimal operating mode for the MA‑1 membrane is a potential jump in the electromembrane system of 1 V, where specific energy consumption is 0.24 kWh/mol. Under comparable conditions, the specific energy consumption for the AMX membrane is 0.34 kWh/mol.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 3","pages":"171 - 180"},"PeriodicalIF":2.0,"publicationDate":"2024-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Surface Modification with Cerium Oxide on the Transport Properties of Heterogeneous Anion Exchange Membranes MA-41 用氧化铈进行表面改性对异质阴离子交换膜 MA-41 传输特性的影响

IF 2

Membranes and Membrane Technologies Pub Date : 2024-05-09 DOI: 10.1134/S2517751624020094

P. A. Yurova, I. A. Stenina, A. D. Manin, D. V. Golubenko, A. B. Yaroslavtsev

引用次数: 0

Influence of the Chemical Structure of Terminal Groups on the Properties of Poly(phenylene sulfone) Ultrafiltration Membranes 端基化学结构对聚苯砜超滤膜性能的影响

IF 2

Membranes and Membrane Technologies Pub Date : 2024-05-09 DOI: 10.1134/S2517751624020069

D. N. Matveev, A. Yu. Raeva, A. A. Zhansitov, K. T. Shakhmurzova, Zh. I. Kurdanova, T. S. Anokhina, S. Yu. Khashirova, V. V. Volkov, I. L. Borisov

{"title":"Influence of the Chemical Structure of Terminal Groups on the Properties of Poly(phenylene sulfone) Ultrafiltration Membranes","authors":"D. N. Matveev, A. Yu. Raeva, A. A. Zhansitov, K. T. Shakhmurzova, Zh. I. Kurdanova, T. S. Anokhina, S. Yu. Khashirova, V. V. Volkov, I. L. Borisov","doi":"10.1134/S2517751624020069","DOIUrl":"10.1134/S2517751624020069","url":null,"abstract":"For the first time, poly(phenylene sulfones) (PPSFs) with chlorine and hydroxyl terminal groups are synthesized and tested for casting high-performance flat-sheet ultrafiltration membranes. The synthesis of PPSFs is carried out in dimethylacetamide at various ratios of 4,4'-dihydroxydiphenyl and 4,4-dichlorodiphenyl sulfone monomers. Two samples with the predominant content of hydroxyl (PPSF-ОН) and chlorine (PPSF-Cl) terminal groups are studied by NMR spectroscopy, GPC, and DSC methods. The coagulation values of polymer solutions in N-methyl-2-pyrrolidone (NMP) and the mechanical properties and hydrophilicity of polymer materials are determined. Both PPSF samples exhibit high tensile strength values at a level of 16 MPa. Using the method of precipitation of PPSF solutions in NMP with PEG-400 additives into water flat-sheet porous asymmetric membranes with a mesoporous (a pore diameter of about 7 nm) thin outer layer and fingerlike macropores in the substrate layer are obtained. An increase in the proportion of hydroxyl terminal groups enhances the hydrophilicity of the polymer. This, in turn, allows for the preparation of flat-sheet membranes from PPSF-ОН with a water permeability of 66 L/(m2 h bar), which is 1.5 times higher than the water permeability of the PPSF-Cl membrane. Meanwhile, both membranes demonstrate a Blue Dextran (Mw = 70 000 g mol–1) rejection of 99.9%.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 2","pages":"104 - 111"},"PeriodicalIF":2.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hemocompatibility of Promising for ECMO High Permeable Polyacetylenes 有望用于 ECMO 的高渗透性聚乙炔的血液相容性

IF 2

Membranes and Membrane Technologies Pub Date : 2024-05-09 DOI: 10.1134/S2517751624020021

A. Yu. Alentiev, A. K. Evseev, S. M. Matson, V. P. Makrushin, S. V. Zhuravel, N. V. Borovkova, I. V. Goroncharovskaya, M. S. Makarov, M. V. Storozheva, I. N. Ponomarev, N. A. Belov

{"title":"Hemocompatibility of Promising for ECMO High Permeable Polyacetylenes","authors":"A. Yu. Alentiev, A. K. Evseev, S. M. Matson, V. P. Makrushin, S. V. Zhuravel, N. V. Borovkova, I. V. Goroncharovskaya, M. S. Makarov, M. V. Storozheva, I. N. Ponomarev, N. A. Belov","doi":"10.1134/S2517751624020021","DOIUrl":"10.1134/S2517751624020021","url":null,"abstract":"A comprehensive study of hemocompatibility and gas permeability of 1,2-disubstituted polyacetylenes, namely poly(1-trimethylsilyl-1-propyne) and poly(4-methyl-2-pentyne), was carried out. The polymers were synthesized started from 1-trimethylsilyl-1-propyne and 4-methyl-2-pentynemonomers on the catalytic systems NbCl5 and NbCl5/n-Bu4Sn to form homopolymers containing 50 and 55% cis-units, respectively. The comparison of the obtained polyacetylenes and the thermoplastic polyolefin, poly(4-methyl-1-pentene) that currently is widely used as a thin-film coating of hollow fiber membranes for extracorporeal membrane oxygenation of blood (ECMO), was performed. The investigated polymers are highly hemocompatible as shown by morphofunctional status of blood cells analysis and mesenchymal multipotent stromal bone marrow cells culture of tissue donors. In terms of hemocompatibility, poly(4-methyl-2-pentyne) was superior to poly(1-trimethylsilyl-1-propyne) and was comparable to poly(4-methyl-1-pentene). The studied polyacetylenes were shown to be significantly more permeable on oxygen and carbon dioxide than poly(4-methyl-1-pentene): poly(1-trimethylsilyl-1-propyne) is more permeable in 320 and 400 times, whereas poly(4-methyl-2-pentyne) is more permeable in 60 and 90 times, respectively. These parameters can significantly reduce the contact area of membranes with blood and reduce the size of oxygenators. Since poly(4-methyl-2-pentyne) has the high gas permeability in combination with the hemocompatibility comparable to poly(4-methyl-1-pentene), this polymer can be recommended as a promising material of a selective membrane layer for ECMO technology.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 2","pages":"63 - 70"},"PeriodicalIF":2.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interlayer Resistance of a Bilayer Membrane to Gas Transport 双层膜的层间气体传输阻力

IF 2

Membranes and Membrane Technologies Pub Date : 2024-05-09 DOI: 10.1134/S2517751624010062

V. V. Ugrozov

引用次数: 0

Prospects for the Development of Hydrogen Energy. Polymer Membranes for Fuel Cells and Electrolyzers 氢能源的发展前景。用于燃料电池和电解槽的聚合物膜

IF 2

Membranes and Membrane Technologies Pub Date : 2024-05-09 DOI: 10.1134/S2517751624010050

I. A. Stenina, A. B. Yaroslavtsev

{"title":"Prospects for the Development of Hydrogen Energy. Polymer Membranes for Fuel Cells and Electrolyzers","authors":"I. A. Stenina, A. B. Yaroslavtsev","doi":"10.1134/S2517751624010050","DOIUrl":"10.1134/S2517751624010050","url":null,"abstract":"Due to the increased attention to hydrogen energy and the fact that many countries adopted the programs for its development, the question on the prospects for this area becomes relevant. Initially, Russian hydrogen energy development program was focused on producing hydrogen from natural gas. However, owing to the changed international situation and the declared course to the use of “green” hydrogen, the production of which is not associated with the emission of carbon oxides, special attention should obviously be paid to the development of fuel cells (FC) and electrolyzers. In this review, the main advantages and disadvantages of fuel cells of various types are considered. Today, the most developed industry is low-temperature fuel cells based on proton-conducting membranes (proton-exchange membrane fuel cells in English literature). At the same time, fuel cells based on anion-exchange membranes with OH–-ion conductivity are also promising. Their key advantage is the possibility of using significantly cheaper non-perfluorinated membranes and platinum-free catalysts. Considerable attention in the review is paid to fuel cells operating at elevated temperatures. The second part of this review discusses in detail the membranes currently used in these devices and promising materials that can replace them in the near future.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 1","pages":"15 - 26"},"PeriodicalIF":2.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Testing of Polymer Film–Sulfonated Polystyrene Proton-Exchange Composite Membranes in a Direct Methanol Fuel Cell at 60°C. Methanol Crossover 在 60°C 直接甲醇燃料电池中测试聚合物薄膜-磺化聚苯乙烯质子交换复合膜。甲醇交叉

IF 2

Membranes and Membrane Technologies Pub Date : 2024-05-09 DOI: 10.1134/S2517751624020045

D. A. Kritskaya, K. S. Novikova, E. A. Sanginov, A. N. Ponomarev

{"title":"Testing of Polymer Film–Sulfonated Polystyrene Proton-Exchange Composite Membranes in a Direct Methanol Fuel Cell at 60°C. Methanol Crossover","authors":"D. A. Kritskaya, K. S. Novikova, E. A. Sanginov, A. N. Ponomarev","doi":"10.1134/S2517751624020045","DOIUrl":"10.1134/S2517751624020045","url":null,"abstract":"The coefficients of diffusion permeability of methanol through the synthesized polymer film–sulfonated polystyrene composite membranes and a Nafion-115 membrane are measured. For several composite membranes with significantly different transport properties, the values of the diffusion flux of methanol qdiff through these membranes under the conditions of a direct methanol fuel cell (DMFC) at 60°C and a concentration of the feed solution of 1–2 M are calculated. Direct measurements of the crossover current and methanol crossover qCVA in a DMFC based on these membranes are carried out by cyclic voltammetry (CVA). It is found that the values of qCVA are on average by 15% lower than the corresponding values of qdiff calculated for each membrane based on its individual parameters (area, thickness, permeability coefficient of methanol). It is proposed to explain the observed ratio qCVA < qdiff by the experimentally uncontrolled and, probably, incomplete oxidation of methanol at the cathode. It can be concluded based on the obtained data that the experimental values of the crossover qCVA can noticeably differ from calculated qdiff and real values of methanol crossover in a DMFC without monitoring the degree of oxidation of methanol at the DMFC cathode. A comparative study of the current–voltage characteristics of DMFCs based on the synthesized composite membranes with significantly different transport properties and a Nafion-115 membrane is carried out. It is found that, at 60°C and a concentration of the feed solution of 1 M, the value of methanol crossover has practically no effect on the current–voltage characteristics of the DMFCs.","PeriodicalId":700,"journal":{"name":"Membranes and Membrane Technologies","volume":"6 2","pages":"112 - 119"},"PeriodicalIF":2.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140939548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0