IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-22 DOI: 10.3390/membranes15090282

Henry Pupiales, Raúl Bahamonde Soria, Daniel Arboleda, Carlos Cevallos, Christian Alcívar, Laurent Francis, Xiao Xu, Patricia Luis

{"title":"ZIF-8/Chitosan Composite Hydrogel as a High-Performance Separator for Bioelectrochemical Systems.","authors":"Henry Pupiales, Raúl Bahamonde Soria, Daniel Arboleda, Carlos Cevallos, Christian Alcívar, Laurent Francis, Xiao Xu, Patricia Luis","doi":"10.3390/membranes15090282","DOIUrl":"10.3390/membranes15090282","url":null,"abstract":"Chitosan biopolymer membranes reinforced with channel-selective ZIF-8 nanofillers were developed and thoroughly characterized as separators for bioelectrochemical systems. This study explores the synergistic effect of incorporating ZIF-8 into a chitosan matrix to enhance membrane performance. Key properties including water retention, chemical and thermal stability, surface resistance, antifouling capacity, and ionic conductivity were evaluated and benchmarked against commercial Nafion-117 and nanofiltration (NF) membranes. The ZIF-8/chitosan composite membranes (ZIF-8/CS) demonstrated excellent water retention and structural stability under harsh conditions, along with significantly reduced surface resistance and effective rejection of organic contaminants and salts (NaCl, Na2SO4). Notably, the composite ZIF-8/CS membranes achieved an ionic conductivity of 0.099 S/cm, approaching the value of Nafion-117 (0.13 S/cm) and substantially surpassing that of the NF membrane (0.013 S/cm). These results indicate that ZIF-8-reinforced chitosan membranes present a promising, sustainable, and cost-effective alternative to traditional separators in bioelectrochemical applications.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471575/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization and Scale-Up of a Two-Level Electrodialysis Process for the Concentration of Lithium Chloride with High Energy Efficiency. 高效浓缩氯化锂的两级电渗析工艺优化及规模化研究。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-22 DOI: 10.3390/membranes15090283

Yu Zhang, Jikuan Wang, Liangyu Yu, Jiangnan Shen

{"title":"Optimization and Scale-Up of a Two-Level Electrodialysis Process for the Concentration of Lithium Chloride with High Energy Efficiency.","authors":"Yu Zhang, Jikuan Wang, Liangyu Yu, Jiangnan Shen","doi":"10.3390/membranes15090283","DOIUrl":"10.3390/membranes15090283","url":null,"abstract":"Traditional thermal concentration processes for LiCl, such as multi-effect evaporation and mechanical vapor recompression (MVR), suffer from drawbacks including high energy consumption and severe equipment corrosion. However, electrodialysis (ED) technology offers several advantages in the concentration process, including high efficiency, energy conservation, selective separation, and the absence of phase-change requirements. This study presents an innovative two-level ED process for efficient LiCl concentration, addressing the limitations of conventional thermal methods. Through systematic small-scale and scale-up experiments, we developed an optimized process achieving exceptional performance. The system attained Li+ concentrations of 22.17 g/L in the concentrated solution and 21.17 g/L in the recycled dilute solution, while reducing residual Li+ in discharge water to just 1.08 g/L. Remarkably, the process demonstrated significant energy efficiency, with a total consumption of only 85.22 kWh/t LiCl and a minimal water migration amount of 4.21 L/(m2·h). Economic analysis revealed substantial cost savings of 14.66 USD/t LiCl compared to traditional evaporation methods. These findings establish ED as a technically and economically viable solution for industrial LiCl concentration, offering both high efficiency and environmental benefits.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471754/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lipid Raft Membrane Interactivity Correlating with Cyclooxygenase-2 Selectivity of Non-Steroidal Anti-Inflammatory Drugs. 脂筏膜相互作用与非甾体抗炎药环氧化酶-2选择性相关。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-22 DOI: 10.3390/membranes15090284

Maki Mizogami, Hiroki Iida, Hironori Tsuchiya

{"title":"Lipid Raft Membrane Interactivity Correlating with Cyclooxygenase-2 Selectivity of Non-Steroidal Anti-Inflammatory Drugs.","authors":"Maki Mizogami, Hiroki Iida, Hironori Tsuchiya","doi":"10.3390/membranes15090284","DOIUrl":"10.3390/membranes15090284","url":null,"abstract":"The primary mechanism of non-steroidal anti-inflammatory drugs (NSAIDs) is inhibition of prostaglandin production mediated by cyclooxygenase. Given the possible association of cyclooxygenase-2, but not cyclooxygenase-1, with membrane lipid rafts, we assessed whether the lipid raft membrane interactivity of NSAIDs correlates with cyclooxygenase-2 selectivity. Lipid raft model membranes and reference membranes were prepared with 1,2-dioleoylphosphatidylcholine/sphingomyelin/cholesterol and 1,2-dipalmitoylphosphatidylcholine, respectively. After treating the membranes with 2-50 μM NSAIDs at pH 7.4, 6.5, and 5.5, fluorescence polarization was measured to determine their membrane interactivity. Conventional NSAIDs (diclofenac, ibuprofen, indomethacin, aspirin, and flurbiprofen) and Coxibs (lumiracoxib, etoricoxib, celecoxib, valdecoxib, and rofecoxib) decreased membrane fluidity, whereas Oxicams (meloxicam, piroxicam, tenoxicam, and lornoxicam) increased. Membrane effects of NSAIDs were so dependent on medium pH that they significantly increased with reducing pH from 7.4 to 5.5. Under inflammatory acidic conditions, the lipid raft membrane interactivity of NSAIDs was more likely to correlate with cyclooxygenase-2 selectivity than the reference membrane interactivity. It is hypothesized that NSAIDs may interact with lipid raft membranes to induce membrane fluidity changes with the potency corresponding to cyclooxygenase-2 inhibition, disrupting the structural and functional integrity of lipid rafts to affect the activity of cyclooxygenase-2 localized in lipid rafts, resulting in cyclooxygenase-2 selective inhibition.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12472060/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zero Liquid Discharge of High-Salinity Produced Water via Integrated Membrane Distillation and Crystallization: Experimental Study and Techno-Economic Analysis. 膜蒸馏结晶一体化高盐采出水零排液试验研究及技术经济分析。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-19 DOI: 10.3390/membranes15090281

Gabriela Torres Fernandez, Zongjie He, Jeremiah Kessie, Jianjia Yu

{"title":"Zero Liquid Discharge of High-Salinity Produced Water via Integrated Membrane Distillation and Crystallization: Experimental Study and Techno-Economic Analysis.","authors":"Gabriela Torres Fernandez, Zongjie He, Jeremiah Kessie, Jianjia Yu","doi":"10.3390/membranes15090281","DOIUrl":"10.3390/membranes15090281","url":null,"abstract":"Direct Contact Membrane Distillation-Crystallization (DCMD-Cr) is a synergistic technology for zero liquid discharge (ZLD) and resource recovery from high-salinity brines. In this study, DCMD-Cr was integrated to desalinate real oilfield-produced water (PW) with an initial salinity of 156,700 mg/L. The PW was concentrated to its saturation point of 28 wt.% via DCMD, and the integrated crystallization increased the overall water recovery from 42.0% to 98.9%, with a decline in water flux and salt rejection, mainly due to vapor pressure lowering and scaling. The precipitated salts in the crystallization unit were recovered and identified using different techniques. The results indicated that 91% of the crystals are sodium chloride, and less than 5% are calcium sulfate. A techno-economic analysis (TEA) was performed to evaluate the economic feasibility of the integrated DCMD-Cr process with a 500,000 gallons per day (GDP) capacity. The results showed that the crystallization operating cost was dominant at USD 0.50 per barrel, while the capital cost was only USD 0.04 per barrel. The economic viability can be enhanced by recovering value-added byproducts and using renewable or waste heat, which can reduce the total cost to USD 0.50 per barrel.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471401/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fluorine-Free Membranes Consisting of a Blend of S-PVA and PEBAX 1657 for Proton Exchange Membrane Fuel Cells: The Role of Titanium Dioxide Phosphate (TiO₂PO₄) Nanoparticle Fillers. 由S-PVA和PEBAX 1657混合物组成的质子交换膜燃料电池的无氟膜：二氧化钛磷酸（TiO2PO4）纳米颗粒填料的作用。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-18 DOI: 10.3390/membranes15090280

Manhal H Ibrahim Al-Mashhadani, Gábor Pál Szijjártó, Asmaa Selim, Zoltán Sebestyén, Judith Mihály, András Tompos

{"title":"Fluorine-Free Membranes Consisting of a Blend of S-PVA and PEBAX 1657 for Proton Exchange Membrane Fuel Cells: The Role of Titanium Dioxide Phosphate (TiO2PO4) Nanoparticle Fillers.","authors":"Manhal H Ibrahim Al-Mashhadani, Gábor Pál Szijjártó, Asmaa Selim, Zoltán Sebestyén, Judith Mihály, András Tompos","doi":"10.3390/membranes15090280","DOIUrl":"10.3390/membranes15090280","url":null,"abstract":"Novel blend membranes containing S-PVA and PEBAX 1657 at a blend ratio of 8:2 were doped with varying amounts of titanium dioxide phosphate (TiO2PO4) as a nanoparticle filler at concentrations of 0, 3, 5, and 7 wt%. The membranes were fabricated using the solution-casting technique. The effect of the TiO2PO4 nanofiller on the polymer matrix was thoroughly investigated. Our aim was to investigate how the incorporation of TiO2PO4 nanofillers into non-fluorinated SPP-based membranes affects their structural, physicochemical, and electrochemical properties for application in fuel cells. Crystallinity of the samples was checked by means of X-ray diffraction (XRD), while FTIR was used to investigate the contact between the nanofiller and the polymers. The good compatibility resulted in strong interactions between the constituents and led to increased crystallinity of the membrane as well. Furthermore, SEM images confirmed the uniform distribution of the nanofiller. These structural features led to good thermal stability, as evidenced by thermogravimetric analysis (TGA), and good mechanical strength, as proved by tensile tests. Among the samples investigated, the highest water uptake of 51.70% was achieved on the composite membrane containing 3 wt% TiO2PO4, which also showed the highest ion exchange capacity at room temperature, reaching 1.13 meq/g. In line with these properties, among the synthesized membranes, the membrane labeled SPP 3% TiO2PO4 has the highest current density and power density, with values of 175.5 mA/cm2 and 61.52 mW/cm2, respectively.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471582/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ion Concentration Polarization in Branched Microchannels: Effect of Membrane Thickness and Applied Voltage. 支化微通道中的离子浓度极化：膜厚度和外加电压的影响。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-17 DOI: 10.3390/membranes15090278

Hirotada Hirama, Masanori Hayase

{"title":"Ion Concentration Polarization in Branched Microchannels: Effect of Membrane Thickness and Applied Voltage.","authors":"Hirotada Hirama, Masanori Hayase","doi":"10.3390/membranes15090278","DOIUrl":"10.3390/membranes15090278","url":null,"abstract":"Ion concentration polarization (ICP) is a promising electrokinetic technique for the concentration and separation of nanoparticles in microfluidic systems. In this study, we investigated how key parameters, including Nafion membrane thickness, applied voltage, and sample flow rate, influence the size of the ion depletion zone (IDZ), which is a critical factor governing ICP efficiency. Nafion membranes were fabricated via solution casting and patterning, producing non-uniform profiles with thinner centers and thicker edges. We found that thinner membranes (formed from 0.5 to 0.75 wt% solutions) led to IDZ widths 2-5 times greater than those of thicker membranes, likely due to nanogap formation at membrane-channel interfaces that enhanced ion transport. Additionally, higher applied voltages consistently enlarged the IDZ, consistent with the Nernst-Planck model, while increasing the flow rates reduced it. Notably, the combination of thin Nafion membranes and high voltage enabled stable IDZ formation, even at high flow rates. These findings offer important design insights for enhancing the performance and throughput of ICP-based nanoparticle manipulation devices.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471405/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Adsorption of Myelin Basic Protein on Model Myelin Membranes Reveals Weakening of van der Waals Interactions in a Lipid Ratio-Dependent Manner. 髓鞘碱性蛋白在模型髓鞘膜上的吸附揭示了范德华相互作用以脂质比例依赖的方式减弱。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-17 DOI: 10.3390/membranes15090279

Petra Maleš, Barbara Pem, Dražen Petrov, Agustín Mangiarotti, Rumiana Dimova, Danijela Bakarić

{"title":"Adsorption of Myelin Basic Protein on Model Myelin Membranes Reveals Weakening of van der Waals Interactions in a Lipid Ratio-Dependent Manner.","authors":"Petra Maleš, Barbara Pem, Dražen Petrov, Agustín Mangiarotti, Rumiana Dimova, Danijela Bakarić","doi":"10.3390/membranes15090279","DOIUrl":"10.3390/membranes15090279","url":null,"abstract":"Myelin is a lipid-rich membrane that insulates axons, providing support and ensuring efficient nerve impulse conduction. Disruption of this sheath, or demyelination, impairs neural transmission and underlies symptoms like vision loss and muscle weakness in multiple sclerosis (MS). Despite extensive studies using in vitro and in vivo models, the molecular mechanisms driving demyelination remain incompletely understood. To investigate the role of myelin basic protein (MBP) in membrane stability, we prepared model myelin membranes (MMMs) from lipids expectedly undergoing gel-to-fluid phase transition, mimicking both normal and altered myelin, with and without MBP. Differential scanning calorimetry (DSC) revealed that MBP suppresses the main phase transition in normal MMMs, unlike in modified MMMs. FTIR spectra showed strengthening of van der Waals interactions in normal MMMs with MBP upon heating and opposite effects in the analogous modified MMM system. Additionally, phosphate groups were identified as critical sites for MBP-lipid interactions. Circular dichroism (CD) spectroscopy suggests that MBP adopts helical structures that penetrate the bilayer of normal MMMs. These findings offer new insights into the molecular-level interactions between MBP and myelin membranes, with implications for understanding demyelination in diseases like MS.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471910/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zn²⁺-Mediated Co-Deposition of Dopamine/Tannic Acid/ZIF-8 on PVDF Hollow Fiber Membranes for Enhanced Antifouling Performance and Protein Separation. Zn2+介导的多巴胺/单宁酸/ZIF-8在PVDF中空纤维膜上的共沉积增强防污性能和蛋白质分离

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-15 DOI: 10.3390/membranes15090277

Lei Ni, Qiancheng Cui, Zhe Wang, Xueting Zhang, Jun Ma, Wenjuan Zhang, Caihong Liu

{"title":"Zn2+-Mediated Co-Deposition of Dopamine/Tannic Acid/ZIF-8 on PVDF Hollow Fiber Membranes for Enhanced Antifouling Performance and Protein Separation.","authors":"Lei Ni, Qiancheng Cui, Zhe Wang, Xueting Zhang, Jun Ma, Wenjuan Zhang, Caihong Liu","doi":"10.3390/membranes15090277","DOIUrl":"10.3390/membranes15090277","url":null,"abstract":"The inherent hydrophobicity of poly(vinylidene fluoride) (PVDF) ultrafiltration membranes leads to severe membrane fouling when processing proteinaceous solutions and organic contaminants, significantly limiting their practical applications. This study presents a novel metal-ion mediated co-deposition strategy for fabricating high-performance antifouling poly(vinylidene fluoride) (PVDF) hollow fiber ultrafiltration membranes. Through Zn2+ coordination-driven self-assembly, a uniform and stable composite coating of dopamine (DA), tannic acid (TA), and ZIF-8 nanoparticles was successfully constructed on the membrane surface under mild conditions. The modified membrane exhibited significantly enhanced hydrophilicity, with a water contact angle of 21° and zeta potential of -29.68 mV, facilitating the formation of a dense hydration layer that effectively prevented protein adhesion. The membrane demonstrated exceptional separation performance, achieving a pure water permeability of 771 L/(m2∙h∙bar) and bovine serum albumin (BSA) rejection of 97.7%. Furthermore, it showed outstanding antifouling capability with flux recovery rates exceeding 83.6%, 74.7%, and 71.5% after fouling by BSA, lysozyme, and ovalbumin, respectively. xDLVO analysis revealed substantially increased interfacial free energy and stronger repulsive interactions between the modified surface and protein foulants. The antifouling mechanism was attributed to the synergistic effects of hydration layer formation, optimized pore structure, additional water transport pathways from ZIF-8 incorporation, and electrostatic repulsion from negatively charged surface groups. This work provides valuable insights into the rational design of high-performance antifouling membranes for sustainable water treatment and protein separation applications.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","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 Synthesis in Zeolite and MOF Membranes. 沸石和MOF膜的微波合成。

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-12 DOI: 10.3390/membranes15090275

Liangqing Li

{"title":"Microwave Synthesis in Zeolite and MOF Membranes.","authors":"Liangqing Li","doi":"10.3390/membranes15090275","DOIUrl":"10.3390/membranes15090275","url":null,"abstract":"Zeolites and metal-organic frameworks (MOFs) are crystalline porous materials characterized by highly ordered pore structures. Their fabrication into membranes has demonstrated significant potential for use in separation processes involving liquids or gases. Traditional methods for synthesizing these membranes often require prolonged reaction times and high energy input. In contrast, microwave heating technology has gained increasing attention as a more efficient approach for the synthesis of zeolite and MOF membranes, offering advantages such as rapid and uniform heating, enhanced energy efficiency, and greater environmental sustainability. This review focuses on fundamental research and laboratory-scale studies on the microwave-assisted synthesis of zeolite and MOF membranes. It begins by outlining the principles of microwave heating, emphasizing the mechanisms that enable accelerated heating. The discussion then highlights the key features and advantages of microwave synthesis in membrane fabrication, including reduced synthesis times, thinner membrane layers, suppression of impurities and undesired phases, and enhanced membrane density. Recent advancements in this area are also presented, particularly strategies for optimizing microwave heating processes, such as the use of single-mode microwave systems and precise control of heating rates. Notably, optimized microwave synthesis with controlled heating rates has been shown to reduce crystallization time by approximately 69%, decrease membrane thickness by nearly 70%, and improve pervaporation flux for acetic acid dehydration by more than 70%, compared with conventional microwave synthesis of mordenite membranes. Finally, the review summarizes and presents future perspectives aimed at promoting continued research and refinement of synthesis strategies in this promising area.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471940/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fouling Mechanisms in the Clarification of 1,3-Propanediol Fermentation Broths by Membrane Processes. 膜法澄清1,3-丙二醇发酵液中的污垢机理

IF 3.6 4区工程技术

Membranes Pub Date : 2025-09-12 DOI: 10.3390/membranes15090276

Hong Chen, Fu Yang, Qianyu Wang, Tianyu Zheng, Rongqing Zhou, Chongde Wu, Yao Jin

{"title":"Fouling Mechanisms in the Clarification of 1,3-Propanediol Fermentation Broths by Membrane Processes.","authors":"Hong Chen, Fu Yang, Qianyu Wang, Tianyu Zheng, Rongqing Zhou, Chongde Wu, Yao Jin","doi":"10.3390/membranes15090276","DOIUrl":"10.3390/membranes15090276","url":null,"abstract":"Membrane separation is an effective means of separating 1,3-propanediol (1,3-PD) from fermentation broth. However, systematic studies on membrane fouling behavior during this process are still limited. Therefore, this study systematically analyzed the membrane fouling behavior during the clarification of 1,3-PD fermentation broth using ultrafiltration/microfiltration and explored the effects of different membrane materials, pore sizes, and shear rates on permeation efficiency, target product recovery rate, and impurity removal rate. The results showed that the filtration of 1,3-PD fermentation broth was mainly dominated by cake formation, and the main foulant was identified as proteinaceous substances. Otherwise, increasing the shear rate adjacent to the membrane did not alter the membrane pore fouling mechanism, but it can disrupt the reversible fouling layer and reduce the growth rate of the fouling layer. Meanwhile, the results also indicated that the PES 100 kDa membrane exhibited the best overall performance with high recovery rate of 1,3-PD and excellent removal effects on impurities, significantly reducing the subsequent purification burden. This study provides more theoretical basis and data support for the optimization of membrane separation processes in 1,3-PD fermentation broth clarification.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12471324/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145149761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Membranes最新文献