Journal of Membrane Science Letters最新文献_第6页

Global optimization for accurate and efficient parameter estimation in nanofiltration 纳滤中精确高效参数估计的全局优化

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100034

Danyal Rehman , John H. Lienhard

{"title":"Global optimization for accurate and efficient parameter estimation in nanofiltration","authors":"Danyal Rehman , John H. Lienhard","doi":"10.1016/j.memlet.2022.100034","DOIUrl":"10.1016/j.memlet.2022.100034","url":null,"abstract":"<div>One of the most well-established frameworks for modeling multicomponent transport in nanofiltration (NF) is the Donnan-Steric Pore Model with Dielectric Exclusion (DSPM-DE). Conventional DSPM-DE characterizes transport across NF membranes through four governing membrane parameters: (1) pore radius; (2) effective membrane thickness; (3) membrane charge density; and (4) the dielectric constant inside the membrane pores. The process for quantifying these parameters is typically sequential. First, neutral solute experiments are performed to determine pore radius and effective membrane thickness. Next, charged species experiments are conducted, and the data is used to regress out the remaining parameters. The resulting regressions are often performed using local search algorithms that can struggle to provide low residuals with robust fits. In addition, this two-step approach tends to: (1) require a substantial number of charged and uncharged solute experiments; and (2) introduce assumed relationships between pore size and water flux, such as the Hagen-Poiseuille equation, which may not be representative of transport through complex pore networks. To address these issues, we propose the use of metaheuristic global optimization techniques supplemented with gradient-free local search and maximum likelihood estimation to simultaneously regress all four membrane parameters directly from charged species experiments. We validate our approach against eight independent datasets across diverse input salinities, compositions, and membranes.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000216/pdfft?md5=8d532a150f743dec6b583aca0be0ab3c&pid=1-s2.0-S2772421222000216-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80442972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Scaling electrospray based additive manufacturing of polyamide membranes 聚酰胺膜的电喷雾增材制造

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100035

Mayur Ostwal , Edward Wazer , Marianne Pemberton , Jeffrey R. McCutcheon

引用次数: 1

Engineering MOF surface defects in mixed matrix membranes: An effective strategy to enhance MOF/polymer adhesion and control interfacial gas transport 混合基质膜中工程化MOF表面缺陷:增强MOF/聚合物粘附和控制界面气体输运的有效策略

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100029

Dong Fan , Aydin Ozcan , Osama Shekhah , Rocio Semino , Mohamed Eddaoudi , Guillaume Maurin

{"title":"Engineering MOF surface defects in mixed matrix membranes: An effective strategy to enhance MOF/polymer adhesion and control interfacial gas transport","authors":"Dong Fan , Aydin Ozcan , Osama Shekhah , Rocio Semino , Mohamed Eddaoudi , Guillaume Maurin","doi":"10.1016/j.memlet.2022.100029","DOIUrl":"10.1016/j.memlet.2022.100029","url":null,"abstract":"<div>MOF/polymer adhesion in Mixed Matrix Membranes (MMMs) has been mainly enhanced so far via MOF and/or polymer functionalization to strengthen the interactions between the two components. This strategy, albeit effective, is generally accompanied by a drop in the permeability and/or selectivity performance of the MMMs. In this contribution, engineering structure defects at the MOF surfaces is proposed as an effective route to create pockets that immobilize part of the polymer chain, which is of crucial importance both to avoid plasticization issues and to enhance the MOF/polymer affinity while overcoming the adhesion/performance trade-off in MMMs. This engineered interfacial interlocking structure also serves as a bridge to accelerate the gas transport from the polymeric region towards the MOF pore entrance. This concept is showcased with a model MMM made of the prototypical UiO-66 MOF and the glassy Polymer of Intrinsic Microporosity-1 (PIM-1) and tested using CO2, CH4 and, N2 as guest species. Our computational findings reveal that a defective UiO-66 MOF surface improves the MOF/PIM-1 adhesion and contributes to accelerate the interfacial gas transport of the slender molecules CO2 and N2 and in a lesser extent of the spherical molecule CH4. This translates into a selective enhancement of the CO2 transport once combined with CH4 which paves the ways toward promising perspective for pre-combustion CO2 capture.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000162/pdfft?md5=07a60cbf077957e3a2943c497944bd5d&pid=1-s2.0-S2772421222000162-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120806629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Using the dimethyl sulfoxide green solvent for the making of antifouling PEGylated membranes by the vapor-induced phase separation process 采用二甲基亚砜绿色溶剂气相分离法制备防污聚乙二醇化膜

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100025

Antoine Venault, Hana Nur Aini, Tesfaye Abebe Galeta, Yung Chang

{"title":"Using the dimethyl sulfoxide green solvent for the making of antifouling PEGylated membranes by the vapor-induced phase separation process","authors":"Antoine Venault, Hana Nur Aini, Tesfaye Abebe Galeta, Yung Chang","doi":"10.1016/j.memlet.2022.100025","DOIUrl":"10.1016/j.memlet.2022.100025","url":null,"abstract":"<div>The toxicity of common solvents used in membrane fabrication threatens the environmental sustainability and questions the claim that membrane technology is a green separation technology. Therefore, there is a need for re-orienting membrane fabrication processes towards greener solutions, making use of less toxic, and possibly environmentally friendly solvents. We employed dimethyl sulfoxide (DMSO), a non-toxic solvent, to prepare casting solutions containing polyvinylidene fluoride and an antifouling random copolymer made of polystyrene and poly(ethylene glycol) methyl ether methacrylate (PS-r-PEGMA). Membranes were formed by vapor-induced phase separation (VIPS). They were shown to be homogeneous in terms of structure and surface chemistry (tested by mapping FT-IR), suggesting compatibility of the polymer/copolymer/solvent system and justifying the choice of DMSO. Membrane hydration was drastically improved after adding PS-r-PEGMA with a water contact angle falling from 140° to 47°. As a result, biofouling by Escherichia coli and whole blood was reduced by > 90% in static conditions. During several filtration cycles of a highly fouling Escherichia coli solution flux recovery ratio could be increased from 16% (pristine membrane) to 29% (PEGylated membrane). All in all, this study reveals that low-biofouling homogeneous porous membranes can be prepared by in-situ modification and the VIPS process using a greener approach than traditionally reported.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000137/pdfft?md5=bad8639713799bd1e338b06d56f91381&pid=1-s2.0-S2772421222000137-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73332720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Improving intermediate-temperature stability of BSCF by constructing high entropy perovskites 构建高熵钙钛矿提高BSCF中温稳定性

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100026

Jingyi Wang , Zhongwei Cao , Xuefeng Zhu , Weishen Yang

{"title":"Improving intermediate-temperature stability of BSCF by constructing high entropy perovskites","authors":"Jingyi Wang , Zhongwei Cao , Xuefeng Zhu , Weishen Yang","doi":"10.1016/j.memlet.2022.100026","DOIUrl":"https://doi.org/10.1016/j.memlet.2022.100026","url":null,"abstract":"<div>High entropy perovskites bring more space for materials design in many fields. The stability of materials in thermodynamics can be improved by increasing the mixed entropy. In this work, a series of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) based high entropy perovskite (HEBSCF) were designed to improve the stability of BSCF at intermediate temperatures. The influence of high entropy composition on the lattice parameter, microstructure and stability of HEBSCF were investigated. The results show that HEBSCF can accommodate cations with large size differences. Compared with BSCF, doping elements at A site (HEBSCF-A), B site (HEBSCF-B) or both sites (HEBSCF-AB) can improve the mixed entropy. Among the three doped BSCF, HEBSCF-AB has the highest mixed entropy and shows stable oxygen permeation flux at 750 and 800 °C up to 300 h. No phase transition was observed on HEBSCF-AB after the long-term tests at intermediate temperatures. This research indicates that the high entropy stabilization strategy is feasible to improve the permeation stability of perovskite membranes by inhibiting phase transition.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000149/pdfft?md5=7acb9960cbea68003cedb1525ac7bca3&pid=1-s2.0-S2772421222000149-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137007658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbonic anhydrase membranes for carbon capture and storage 碳酸酐酶膜用于碳捕获和储存

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100031

Yiming Zhang , Junyong Zhu , Jingwei Hou , Shouliang Yi , Bart Van der Bruggen , Yatao Zhang

{"title":"Carbonic anhydrase membranes for carbon capture and storage","authors":"Yiming Zhang , Junyong Zhu , Jingwei Hou , Shouliang Yi , Bart Van der Bruggen , Yatao Zhang","doi":"10.1016/j.memlet.2022.100031","DOIUrl":"10.1016/j.memlet.2022.100031","url":null,"abstract":"<div>Carbonic anhydrase (CA) based membranes with unique biological activities have been widely explored for carbon capture and storage (CCS), owing to their high efficiency, easy operation, low energy requirement, and environmental sustainability. However, limitations of CA enzymes, such as low thermal stabilities, narrow optimum pH ranges, and difficulties in recovery from reaction media, hinder its practical applications. Consequently, combining its enzymatic activity with membrane technologies for industrial uses is an attractive strategy. This current review explores a variety of immobilization approaches and summarizes the mechanistic features of enzymatic membranes in CO2 capture. Immobilized enzymes can be recycled to reduce process costs and improve the CO2 permeability and selectivity of the membranes. This makes enzymatic membranes attractive for CCS. The study also summarizes the structure, synthesis, and applications of a variety of CA analogues to demonstrate their advantages compared with natural CA. CA analogues hold promise for industrial and biomimetic applications.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000186/pdfft?md5=6fc827623716fb068c9ecfb1374dc5ef&pid=1-s2.0-S2772421222000186-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88726509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Porous substrate affects fouling propensity of thin-film composite nanofiltration membranes 多孔基板影响薄膜复合纳滤膜的污染倾向

Journal of Membrane Science Letters Pub Date : 2022-11-01 DOI: 10.1016/j.memlet.2022.100036

Chenyue Wu, Li Long, Zhe Yang, Chuyang Y. Tang

{"title":"Porous substrate affects fouling propensity of thin-film composite nanofiltration membranes","authors":"Chenyue Wu, Li Long, Zhe Yang, Chuyang Y. Tang","doi":"10.1016/j.memlet.2022.100036","DOIUrl":"10.1016/j.memlet.2022.100036","url":null,"abstract":"<div>Fouling is a critical consideration for the design of thin-film composite (TFC) nanofiltration membranes. Traditional wisdom believes that fouling propensity is primarily dictated by membrane surface properties while porous substrates play little role (on the basis on the latter have no effect on the foulant-membrane interaction). Nevertheless, porous substrates can regulate the water transport pathways, resulting in uneven water flux distribution over the membrane surface. For the first time, we experimentally investigated the micro-scale water flux distribution for nanofiltration membranes with different substrate porosities and the impact of such flux distribution pattern on fouling. With gold nanoparticles as tracers, we demonstrated more evenly distributed water flux at increasing substrate porosity. This was found to effectively alleviate membrane fouling by eliminating localized hot spots of high flux. Furthermore, higher substrate porosity also effectively enhanced the membrane water permeance due to the optimized water transport pathways. Our study reveals the fundamental relationship between the micro-scale transport behavior and the membrane fouling propensity, which provides a firm basis for the rational design of TFC membranes toward better separation performance.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277242122200023X/pdfft?md5=a57c70b8568a4633a9d5756b1a50855d&pid=1-s2.0-S277242122200023X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85498773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Mitigated carrier saturation of facilitated transport membranes for decarbonizing dilute CO2 sources: An experimental and techno-economic study 减轻载体饱和的便利运输膜脱碳稀释二氧化碳源:一个实验和技术经济研究

Journal of Membrane Science Letters Pub Date : 2022-05-01 DOI: 10.1016/j.memlet.2022.100014

Yang Han , W.S. Winston Ho

{"title":"Mitigated carrier saturation of facilitated transport membranes for decarbonizing dilute CO2 sources: An experimental and techno-economic study","authors":"Yang Han , W.S. Winston Ho","doi":"10.1016/j.memlet.2022.100014","DOIUrl":"10.1016/j.memlet.2022.100014","url":null,"abstract":"<div>The CO2/N2 separation performances of facilitated transport membranes (FTMs) containing aminoacid salts as mobile carriers were characterized under dilute feed gases with 0.05–20% CO2. At a reduced CO2 partial pressure, the carrier saturation in the FTMs was mitigated, which enhanced both the CO2 permeance and CO2/N2 selectivity. The best FTM containing 2-(1-piperazinyl)ethylamine sarcosinate exhibited an uprising CO2 permeance from 1968 to 3822 GPU and an improved CO2/N2 selectivity from 249 to 472 with reducing CO2 content from 1% to 0.1%. The feasibility of this FTM is exemplified by designing a two-stage enriching membrane cascade to further remove 90% of the CO2 in a residual coal flue gas containing 1.75% CO2. Techno-economic analysis indicates a low capture cost of $83.8/tonne. The marginal costs beyond 90% capture are also evaluated for a variety of residual flue gases, indicating that the FTM-based capture from the coal or cement plant residual flue gas is more cost effective than direct air capture.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000022/pdfft?md5=bc23429ddfd6e399497e81a45c762e84&pid=1-s2.0-S2772421222000022-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79170267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Production of sub-10 micrometre cellulose microbeads using isoporous membranes 使用等孔膜生产10微米以下的纤维素微珠

Journal of Membrane Science Letters Pub Date : 2022-05-01 DOI: 10.1016/j.memlet.2022.100024

Ekanem E. Ekanem , Ainur Sabirova , Ciarán Callaghan , Janet L. Scott , Karen J. Edler , Suzana P. Nunes , Davide Mattia

{"title":"Production of sub-10 micrometre cellulose microbeads using isoporous membranes","authors":"Ekanem E. Ekanem , Ainur Sabirova , Ciarán Callaghan , Janet L. Scott , Karen J. Edler , Suzana P. Nunes , Davide Mattia","doi":"10.1016/j.memlet.2022.100024","DOIUrl":"https://doi.org/10.1016/j.memlet.2022.100024","url":null,"abstract":"<div>The production of sub-10 µm cellulose microbeads via membrane emulsification using isoporous membranes is reported here for the first time. Poly(ethylene terephthalate) membranes, with defined interpore distances, pore diameters and straight-through pores were fabricated via photolithography. A dispersed phase of 8 wt% cellulose solution was extruded through the membrane pores, forming, due to shear provided by an overhead stirrer, cellulose solution droplets dispersed in a continuous phase composed of 2 wt% and 5 wt% Span in sunflower oil. Upon phase inversion with ethanol, sub-10 µm microbeads with a coefficient of variation (CV) < 45 % were produced by exploring the Weber number (Wed) - Capillary number (Cac) emulsion generation space.These results show that sub-10 µm cellulose microbeads can be produced using isoporous polymer membranes fabricated via photolithography, for use in a wide range of applications in the personal care, food and drug industries.</div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772421222000125/pdfft?md5=a836311ad3b698ebd8427c4ebe27a759&pid=1-s2.0-S2772421222000125-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137290593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave-induced ultrafast crosslinking of Poly (vinyl alcohol) blended with nanoparticles as wave absorber for pervaporation desalination 微波诱导超快交联聚乙烯醇与纳米粒子混合作为渗透蒸发脱盐的吸波剂

Journal of Membrane Science Letters Pub Date : 2022-05-01 DOI: 10.1016/j.memlet.2022.100021

Yunfei Xing, Yunlong Xue, Dujian Qin, Pengbo Zhao, Pei Li

引用次数: 6