Advanced Membranes最新文献

{"title":"Preparation of high-performance pervaporation membranes for ethanol dehydration using a layer-by-layer self-assembly method","authors":"Zhenhan Sun ,&nbsp;Guoke Zhao ,&nbsp;Gongqing Tang ,&nbsp;Zhihu Zhao ,&nbsp;Pei Li","doi":"10.1016/j.advmem.2025.100132","DOIUrl":"10.1016/j.advmem.2025.100132","url":null,"abstract":"<div><div>To achieve fuel-grade purity (≥99.5 ​wt%), raw bioethanol needs to be purified. Adopting pervaporation membrane for bioethanol enrichment can greatly reduce the energy consumption compared with distillation. However, this requires the membrane having a high flux and high water to ethanol selectivity as well as good stability. In this study, a layer-by-layer self-assembled composite pervaporation membrane was prepared by alternately dip-coating polyallylamine hydrochloride (PAH) and sodium alginate (SA) solutions on the surface of a polyacrylonitrile (PAN) microfiltration membrane. The membrane flux and separation performance under different feed conditions are measured independently, and the results are mutually independent. These tests are conducted as short-term experiments to evaluate the membrane's separation performance under specific feed conditions. By optimizing the concentrations of PAH and SA, best separation performance of the composite membranes was obtained with a flux of 2.02 ​kg ​m⁻² ​h⁻¹ and a water to ethanol separation factor of 10993 using a 90 ​% ethanol water solution as feed at 70 ​°C. The composite membrane showed good stability in water. When keeping all other conditions unchanged, the feed ethanol concentration is adjusted to 50 ​wt%, the membrane flux increase to 12.61 ​kg ​m⁻² ​h⁻¹, and the water concentration in the permeate reach 99.7743 ​wt%.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100132"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143402573","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}

{"title":"Swelling polymer-regulated green synthesis of flexible ZIF-8 membrane","authors":"Hongyu Ma ,&nbsp;Ruoxin Wang ,&nbsp;Kaiqiang He ,&nbsp;Yaoxin Hu ,&nbsp;George P. Simon ,&nbsp;Huanting Wang","doi":"10.1016/j.advmem.2025.100144","DOIUrl":"10.1016/j.advmem.2025.100144","url":null,"abstract":"<div><div>Metal-organic framework (MOF)-based membranes are promising for the development of high flux separation applications while maintaining high selectivities. Since pure MOF membranes typically suffer from brittleness, the fabrication of flexible MOF membranes with minimal defects and good mechanical strength is valuable. Herein, we report a swelling polymer-regulated method for the <em>in situ</em> green synthesis of a flexible zeolitic imidazolate framework-8 (ZIF-8) membrane for gas separation. By applying reactant solutions with different solvents in the contra-diffusion process, ZIF-8 particles were gradually grown with binding to alginate polymers. Moreover, the directional swelling of the composite layer allowed the selective layer to grow further into the pores of the substrate. This membrane demonstrated good structural integrity and mechanical stability whilst achieving an H₂ permeance of 6.81 ​× ​10⁻⁷ ​mol ​m⁻² ​s⁻¹·pa⁻¹ and an ideal H₂/CH₄ selectivity of 24, which was able to retain its gas separation performance after 10 mild bends. This approach thus shows great potential for the further development of other flexible MOF membranes.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100144"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807660","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}

{"title":"Size effect of porous filler in mixed matrix membranes for faster hydrogen permeation from methane-containing mixtures","authors":"Yuebing Shen ,&nbsp;Fanfan Jiang ,&nbsp;Qian Liu ,&nbsp;Zhiquan Chen ,&nbsp;Kai Ge ,&nbsp;Junfeng Bai ,&nbsp;Jingui Duan","doi":"10.1016/j.advmem.2025.100136","DOIUrl":"10.1016/j.advmem.2025.100136","url":null,"abstract":"<div><div>One potential solution for the transport of hydrogen (H₂) is the injection of hydrogen into natural gas pipelines. Therefore, it is imperative to develop an efficient purification technology. Membrane separation has great potential to meet this challenge due to its effective energy consumption and cost. Here, a series of mixed matrix membranes (MMMs) containing ZIF-71 fillers of different sizes are reported for faster H₂ permeation. The uniform distribution of nanosized ZIF-71 (0.1 ​μm) in 6FDA-DAM provides an attractive diffusion channel, allowing the membrane to show rapid H₂ permeation of 1050 Barrer and good H₂/CH₄ separation factor of 43. This performance is markedly superior to that of the larger-sized ZIF-71 (1.0 ​μm and 3.5 ​μm) in 6FDA-DAM and the same-sized ZIF-71 (0.1 ​μm) in 6FDA-Durene and PEI, and also exceeds the upper bound. Moreover, the long-term stable H₂/CH₄ separation suggests a high potential for practical applications. The findings here demonstrate the importance of the filler size, which has a strong influence on the formation of mass transfer channels, and also provide straightforward method for the development of high-performance MMMs.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100136"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488712","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}

{"title":"Hydrophobic DD3R modified by perfluorooctyl-trimethoxysilane incorporates into PEBAX membrane for ethanol recovery via pervaporation","authors":"Chengyun Gao ,&nbsp;Yuxuan Zhang ,&nbsp;Junling Lin ,&nbsp;Weijie Sun ,&nbsp;Yangyang Wang ,&nbsp;Fanhui Meng ,&nbsp;Jiayou Liao ,&nbsp;Xianjie Meng","doi":"10.1016/j.advmem.2025.100146","DOIUrl":"10.1016/j.advmem.2025.100146","url":null,"abstract":"<div><div>A novel class of mixed-matrix membranes was synthesized through strategic integration of Polyether-block-amide (PEBAX) with Deca-dodecasil 3R (DD3R) zeolitic fillers, targeting efficiency-driven ethanol recovery in pervaporation separation systems. The DD3R molecular sieve was synthesized using adamantylamine (ADA) as a structure-directing agent and Sigma-1 seed crystals in a pure silicon precursor system. To improve compatibility with the polymer matrix, the DD3R particles were surface-modified with a silane coupling agent. Comprehensive characterization through Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectra (XPS), Water Contact Angle (WCA), X-ray diffraction (XRD), swelling degree tests, and mechanical properties confirmed the successful bonding of the silane coupling agent to both DD3R and PEBAX. The optimized membrane containing 0.75 ​wt% DD3R achieved a flux of 1152.06 ​g/m²h and a separation factor of 4.52 ​at 60°C with a 5 ​wt% ethanol feed concentration, representing a 115 ​% enhancement in flux and a 68 ​% increase in separation factor compared to the pristine PEBAX membrane. Additionally, the PEBAX/DD3R membrane displayed excellent long-term stability. This work provided a foundation for developing membranes with DD3R incorporated therein for a wide range of liquid or gas mixture separation processes.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100146"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143937341","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}

{"title":"Robust positively charged polyurea nanofiltration membranes with acid resistance for efficient lithium extraction and recovery","authors":"Qin Shen ,&nbsp;Mengmeng Fang ,&nbsp;Wenshuo Cui ,&nbsp;Chuanjie Fang ,&nbsp;Zhikan Yao ,&nbsp;Liping Zhu","doi":"10.1016/j.advmem.2025.100134","DOIUrl":"10.1016/j.advmem.2025.100134","url":null,"abstract":"<div><div>Given the growing demand for lithium in energy storage and electric vehicle industries, the development of acid-resistant membranes for efficient lithium extraction from brine and recycling of spent lithium-ion batteries is crucial for advancing sustainable and scalable resource recovery technologies. Herein, a strong acid-tolerant and positively charged polyurea (PU) nanofiltration (NF) membrane was fabricated via the interfacial polymerization of toluene-2, 4-diisocyanate (TDI) monomers with poly(allylamine) (PAA) monomers with a polyethersulfone ultrafiltration membrane as the substrate. The newly-developed typical PU NF membrane performed high cation-cation separation selectivity (mixed-salt separation factor: 16.6 for Li⁺/Mg²⁺, 19.3 for Li⁺/Ni²⁺, 11.3 for Li⁺/Co²⁺, and 15.7 for Li⁺/Mn²⁺) even if exposed to 10 ​wt% H₂SO₄ solution for 96 ​h. The high cation separation accuracy is attributed to the narrow positively-charged ion sieving channels constructed with TDI and PAA as building blocks. The urea units containing abundant bidentate hydrogen bonds and electron-rich dinitrogen atoms is responsible for the excellent acid tolerance of the PU membranes. This work has the potential to contribute to more sustainable and cost-effective lithium recovery from both brine and discarded cathode materials, making it a crucial step toward scaling up these technologies for industrial applications.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422083","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}

{"title":"Advanced bipolar membranes with earth-abundant water dissociation catalysts for durable ampere-level water electrolysis","authors":"Fanglin Duan,&nbsp;Xiaojiang Li,&nbsp;Fen Luo,&nbsp;Tingkun Li,&nbsp;Weisheng Yu,&nbsp;Liang Wu,&nbsp;Tongwen Xu","doi":"10.1016/j.advmem.2025.100152","DOIUrl":"10.1016/j.advmem.2025.100152","url":null,"abstract":"<div><div>Green hydrogen production via water electrolysis is a crucial pathway for sustainable energy generation. Bipolar membrane water electrolysis (BPMWE) offers several advantages, including kinetically optimal electrode reactions across pH gradients and reduced component costs. However, challenges such as high overpotential of the BPM for water dissociation (WD) and the need for long-term stability in industrial setting hinder BPMWE development. While various metal oxide catalysts have been explored to reduce WD overpotential in BPMs, the effect of different crystalline phases of interfacial catalysts on BPM performance remains poorly understood. In this study, we investigate the catalytic effects of three titanium dioxide (TiO₂) phases—anatase, rutile, and amorphous—as interfacial catalysts in BPMs. The electrochemical tests reveal that rutile TiO₂, with its uniform dispersion and minimal aggregation, offers excellent WD efficiency. The BPM incorporating rutile TiO₂ achieves current densities of 2300 ​mA ​cm⁻² in pure water electrolysis and 4500 ​mA ​cm⁻² in acid-base electrolysis at 3 ​V and 80 ​°C. Furthermore, in a flow-cell electrolyzer, it sustains stable operation for 200 ​h at 1000 ​mA ​cm⁻². This work addresses critical challenges in BPM development, advancing BPMWE technology and supporting the potential for industrial-scale hydrogen production, thereby willing to contribute to the transition to sustainable energy solutions.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100152"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942570","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}

{"title":"Electrospun nanofiber membrane of Piper beetle loaded PVDF/PAN for medical mask applications: psychochemical characteristics, antibacterial and air filter test","authors":"Ida Sriyanti ,&nbsp;Muhammad Rama Almafie ,&nbsp;Meutia Kamilatun Nuha Ap Idjan ,&nbsp;Rahma Dani ,&nbsp;Indah Solihah ,&nbsp;Edi Syafri ,&nbsp;Yulianti ,&nbsp;Leni Marlina","doi":"10.1016/j.advmem.2025.100149","DOIUrl":"10.1016/j.advmem.2025.100149","url":null,"abstract":"<div><div>Face masks are designed to protect the wearer from environmental hazards, such as volatile organic contaminants and suspended particulate matter (PM), which can cause asthma and anemia and affect the nervous system. This paper reports the development of a novel electrospun nanofiber membrane composite based on polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN), and Piper betle extract (PLE) for potential applications in medical masks. Nanofiber membranes were fabricated via electrospinning and characterized for their physicochemical properties, antibacterial activity, and air filtration performance. SEM analysis revealed a bead-free nanofiber morphology with average diameters ranging from to 764–856 ​nm. The composite membranes exhibited high tensile strength over 34.92 ​± ​1.34 ​MPa, elongation at break of 1.24 ​% ​± ​0.031, and Young's modulus of 28.07 ​± ​1.33 ​MPa. Water contact angle measurements above 90° indicate the hydrophobic nature of the material. FTIR analysis confirmed the presence of phenolic compounds on the nanofiber surface, suggesting the incorporation of flavonoids, tannins, essential oils, alkaloids, and catechins from the PLE. The nanofiber membranes demonstrated effective antibacterial activity against <em>S. aureus</em> and <em>P. aeruginosa</em>, with inhibition zones of 19.65 ​± ​0.07 and 7.19 ​± ​0.08 ​mm, respectively, for the membrane with the highest PLE content. Air filtration tests revealed that the optimized membrane achieved a high filtration efficiency of 99.11 ​%, with a relatively low pressure drop of 80.28 ​Pa and a high-quality factor of 0.1428 ​Pa⁻¹. The enhanced filtration properties and low filtration resistance of the PVDF/PAN/PLE electrospun membranes demonstrated their potential for the efficient removal of particulate matter and microorganisms in air filtration applications, particularly in the development of high-performance and multifunctional medical masks.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100149"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143941812","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}

{"title":"Cellulose-based separation membranes: A sustainable evolution or fleeting trend?","authors":"Fuju Qi ,&nbsp;Benkun Qi ,&nbsp;Zhaoliang Cui ,&nbsp;Xiangrong Chen ,&nbsp;Yinhua Wan ,&nbsp;Jianquan Luo","doi":"10.1016/j.advmem.2025.100153","DOIUrl":"10.1016/j.advmem.2025.100153","url":null,"abstract":"<div><div>Cellulose-based separation membranes are promising for sustainable membrane technology due to their renewable raw materials and biodegradability. Their excellent resistance to fouling, minimal protein adsorption, and high biocompatibility render them effective in bio-separation applications. Nevertheless, the development of truly sustainable cellulose membranes for engineering purposes remains challenging. This review begins by outlining the raw cellulosic materials employed in membrane fabrication, followed by a systematic summary of the fabrication techniques for cellulose-based membranes derived from various raw materials, alongside their progress in bio-separation. The sustainability of cellulose-based separation membranes is assessed within a life cycle framework that considers raw materials, membrane fabrication, application scenarios and end-of life, with particular emphasis on key barriers to achieving engineering sustainability. Finally, this review proposes targeted optimization strategies to tackle these limitations, offering a clear roadmap for future research aimed at transforming cellulose-based membranes from promising laboratory innovations into robust, scalable engineering solutions.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100153"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115991","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}

{"title":"Review on molecular modeling-facilitated design of porous membranes","authors":"Wei Yang ,&nbsp;Meina Xiong ,&nbsp;Dongliang Jin,&nbsp;Jing Zhong","doi":"10.1016/j.advmem.2025.100145","DOIUrl":"10.1016/j.advmem.2025.100145","url":null,"abstract":"<div><div>Molecular modeling techniques are regarded as an effective approach to study various advanced membranes at the microscale. These investigations of porous membranes are devoted to better understanding their chemical structures, pore topology and morphology, transport/permeation mechanisms, and the structure-activity relationship. This review provides an overview of current research on the molecular simulations of the structure, gas-/liquid-phase transport, and phase behaviors in porous membranes. In more detail, quantum chemistry is first introduced to probe the structures of porous membranes at the molecular/atomistic level. In this part, the pore topology estimated by using the geometric algorithm is also presented. Transport properties of porous membranes determined using molecular dynamics are then summarized. To study the formation kinetics of membranes and the diffusion kinetics of fluids within membrane’s pores, free energy calculations are discussed. Moreover, the phase behaviors involved in the membrane process by Monte Carlo simulations are presented. Finally, a brief discussion of the multiscale simulations is provided to comprehensively understand the structure-activity relationship. These theoretical works pave constructive ways for the design of functional membranes used for separation and purification, energy harvesting and storage, petrochemical engineering, and so on.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100145"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143843773","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}

{"title":"Hybrid energy harvesting enabled by a covalent organic framework membrane","authors":"Jiaming Yi,&nbsp;Zhuozhi Lai,&nbsp;Qing Guo,&nbsp;Zhiwei Xing,&nbsp;Qi Sun","doi":"10.1016/j.advmem.2025.100130","DOIUrl":"10.1016/j.advmem.2025.100130","url":null,"abstract":"<div><div>The integration of water and thermal energy harvesting presents a promising solution to the intermittency issues associated with individual energy sources. In this study, we show a covalent organic framework (COF) membrane featuring subnanometer, one-dimensional ionic channels, which demonstrate remarkable stability in both acidic and saline environments. The membrane exhibits exceptional permselectivity across various electrolyte solutions, enabling efficient osmotic energy harvesting from proton gradients via reverse electrodialysis. Under a 50-fold concentration gradient of H₂SO₄, the membrane achieved a peak output power density of 97.1 ​W ​m⁻². Furthermore, the membrane facilitates thermo-osmotic energy conversion by selectively screening ionic charges driven by combined salinity and temperature gradients. Under simulated estuarine salinity conditions and a 30 ​K temperature gradient, the COF membrane achieved a maximum output power density of 91.4 ​W ​m⁻²—an 18-fold increase compared to the commercial benchmark (5 ​W ​m⁻²). This study underscores the significant potential of COF membranes for efficient energy conversion, enabling the effective harvesting of untapped osmotic and low-grade heat energy.</div></div>","PeriodicalId":100033,"journal":{"name":"Advanced Membranes","volume":"5 ","pages":"Article 100130"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143156620","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}