Journal of Membrane Science Letters最新文献

Decoupling solvent features to address spurious correlations in ceramic Organic Solvent Nanofiltration membranes 解耦溶剂特征，以解决陶瓷有机溶剂纳滤膜中的虚假相关性

IF 4.7

Journal of Membrane Science Letters Pub Date : 2026-06-01 Epub Date: 2026-01-21 DOI: 10.1016/j.memlet.2026.100111

Wout Linsen , Pieter-Jan Piccard , Jef Hooyberghs , Anita Buekenhoudt

{"title":"Decoupling solvent features to address spurious correlations in ceramic Organic Solvent Nanofiltration membranes","authors":"Wout Linsen , Pieter-Jan Piccard , Jef Hooyberghs , Anita Buekenhoudt","doi":"10.1016/j.memlet.2026.100111","DOIUrl":"10.1016/j.memlet.2026.100111","url":null,"abstract":"<div><div>Organic Solvent Nanofiltration has emerged as an energy-efficient alternative to traditional thermal methods; yet its widespread implementation is hindered by its poorly understood transport mechanism. Improving the prediction of membrane flux and retention is therefore essential, which has recently been primarily advanced through data-driven modeling. Prediction and interpretation of organic solvent nanofiltration transport, however, are complicated by the collinearity between solvent size and Hansen solubility, as they are dependent on one another for common organic solvent nanofiltration solvents. Considering both solvent size and solubility are known to correlate strongly with flux, the collinearity of these properties obscures the impact of either of them. We break this collinearity by performing flux measurements on outlier solvents in unmodified and methyl-grafted ceramic membranes at room temperature. Breaking collinearity is achieved using propylene carbonate and glycerol-water mixtures, whose molecular size and solubility (at room temperature) significantly deviate from the trend established by common organic solvent nanofiltration solvents. To quantitatively identify the true driver of flux for each membrane separately, linear models using either solvent kinetic diameter, molar volume, or Hansen solubility as predictors are compared using statistical tests. Our analysis indicates that molecular size (specifically, the squared reciprocal kinetic diameter) is the true predictor of flux for unmodified and methyl-grafted titania membranes separately, while molar volume and Hansen solubility add no further predictive power. This method can be extended to, e.g., investigate membrane and temperature dependence. Decoupling solvent size and Hansen solubility can help improve the understanding of organic solvent nanofiltration transport and, via dimensionality reduction, aid the development of data-driven modeling.</div></div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":"6 1","pages":"Article 100111"},"PeriodicalIF":4.7,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039947","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

Temporal fluctuations of non-equilibrium water accessible pathways in polyamide reverse osmosis active layers 聚酰胺反渗透活性层非平衡水通路的时间波动

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-08-14 DOI: 10.1016/j.memlet.2025.100104

Timothy M. Weigand, Riley Vickers, Cass T. Miller, Orlando Coronell

引用次数: 0

Self-regulating behavior of hybrid membrane systems as demonstrated in an element-scale forward osmosis-reverse osmosis hybrid system 元尺度正渗透-反渗透混合膜系统的自调节行为

IF 4.9

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-06-18 DOI: 10.1016/j.memlet.2025.100102

Noah Ferguson, Maqsud Chowdhury, Colin Fitzsimonds, Nicole Beauregard, Mayur Ostwal, Marianne Pemberton, Edward Wazer, Caylin Cyr, Ranjan Srivastava, Jeffrey R. McCutcheon

引用次数: 0

Ongoing phase separation inside hollow fiber membranes via non-solvent induced phase separation 通过非溶剂诱导相分离在中空纤维膜内进行相分离

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-09-15 DOI: 10.1016/j.memlet.2025.100106

Khalid Mohammad Tayyab , Mohammad Aadil , Chul Ho Park

引用次数: 0

Fabrication and property modification of free-standing PSS/PDADMAC ultra- and microfiltration membranes by incorporating cellulosic additives 加入纤维素添加剂的独立式PSS/PDADMAC超、微滤膜的制备及其性能改性

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-11-06 DOI: 10.1016/j.memlet.2025.100110

Ang Zhao , Lea Erbacher , Prasath Paskaran , Matthias Wessling

{"title":"Fabrication and property modification of free-standing PSS/PDADMAC ultra- and microfiltration membranes by incorporating cellulosic additives","authors":"Ang Zhao , Lea Erbacher , Prasath Paskaran , Matthias Wessling","doi":"10.1016/j.memlet.2025.100110","DOIUrl":"10.1016/j.memlet.2025.100110","url":null,"abstract":"<div><div>In classical membrane fabrication, water-soluble additives such as polyvinylpyrrolidone (PVP) have been pivotal in generating porosity and tuning surface properties. By contrast, comparable modifiers for membranes produced via all-aqueous processes – such as polyelectrolyte complex (PEC) membranes – remain largely unexplored. Here, we demonstrate that hydroxyethyl cellulose (HEC) and hydroxypropyl cellulose (HPC) act as effective pore formers and structural modifiers in PEC flat-sheet membranes prepared by salt-dilution-induced phase inversion. During fabrication, a fraction of the cellulosic additive is leached from the polymer solution, enhancing membrane porosity and permeability, while the residual fraction reinforces mechanical stability. Crosslinking with sodium trimetaphosphate (STMP) further strengthens the membranes. Membranes using HEC as the cellulosic additive exhibit a tunable increase in pure water permeability (from <span><math><mrow><mn>43</mn><mspace></mspace><mo>±</mo><mspace></mspace><mn>10</mn></mrow></math></span> to <span><math><mrow><mn>123</mn><mspace></mspace><mo>±</mo><mspace></mspace><mn>47</mn></mrow></math></span> LMH<span><math><mi>⋅</mi></math></span>bar<sup>−1</sup>) and molecular weight cut-off (from <span><math><mrow><mn>117</mn><mspace></mspace><mo>±</mo><mspace></mspace><mn>64</mn></mrow></math></span> to <span><math><mrow><mn>460</mn><mspace></mspace><mo>±</mo><mspace></mspace><mn>360</mn></mrow></math></span> kDa). In addition, additive pretreatment and crosslinking strategies enable surface charge modulation, shifting it from positive to neutral or negative, and tailoring salt retention profiles. These findings establish cellulosic additives as versatile design elements in the emerging class of aqueous PEC membrane systems.</div></div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":"5 2","pages":"Article 100110"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145519647","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

Membrane separation of dispersion of PbS colloidal quantum dots with iodide ligands 碘化物配体对PbS胶体量子点分散的膜分离研究

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-09-18 DOI: 10.1016/j.memlet.2025.100107

Jun Tanaka, Seiya Ikeda, Nozomu Yoshikuni, Kohki Mukai

{"title":"Membrane separation of dispersion of PbS colloidal quantum dots with iodide ligands","authors":"Jun Tanaka, Seiya Ikeda, Nozomu Yoshikuni, Kohki Mukai","doi":"10.1016/j.memlet.2025.100107","DOIUrl":"10.1016/j.memlet.2025.100107","url":null,"abstract":"<div><div>We have succeeded in membrane separation to classify PbS colloidal quantum dots (CQDs) with iodide ligands, which have the potential to significantly improve the performance of many optoelectronic devices such as solar cells. CQDs are expected to be applied in various fields due to their unique features; however, a method for mass-producing uniform CQDs has not yet been established, and the high manufacturing costs resulting from small-scale production are hindering social implementation. We have proposed the membrane separation process as an alternative to conventional centrifugation and demonstrated an acceleration and improved efficiency of the separation processes, thereby eliminating the bottlenecks. Size separation of CQDs with iodide ligands (I-CQDs) using membrane filtration has remained particularly challenging due to their inevitable adsorption to the membrane. In this work, I-CQDs were successfully withdrawn to the filtrate without adsorption by dispersing them in a quaternary mixed solvent that satisfies the adsorption-inhibiting conditions proposed in previous studies, which are based on Hansen solubility parameters. Our membrane separation technology will become the basis for the low-cost production of I-CQDs.</div></div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":"5 2","pages":"Article 100107"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145157438","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

Novel carbon molecular sieve membranes for CO2 separation derived from the zero-dimension carbon quantum dots doped polyimide 用掺杂聚酰亚胺的零维碳量子点制备CO2分离用新型碳分子筛膜

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-09-08 DOI: 10.1016/j.memlet.2025.100105

Lujie Sheng, Xianglong Zhang, Qingdi Mu, Hui Li, Jizhong Ren

引用次数: 0

Joule-heating membranes: Do they really work for membrane distillation processes? 焦耳加热膜：它们真的适用于膜蒸馏过程吗？

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-10-02 DOI: 10.1016/j.memlet.2025.100108

Arian Enayat, Mehdi Azhdarzadeh, Sadaf Noamani, Andre McDonald, Mohtada Sadrzadeh

引用次数: 0

Maximizing liquid fertilizer concentration during ammoniacal nitrogen recovery using hollow fiber membrane contactors 利用中空纤维膜接触器在氨氮回收过程中最大限度地提高液肥浓度

IF 4.9

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-07-07 DOI: 10.1016/j.memlet.2025.100103

Musie Welldegerima Atsbha, Oded Nir

{"title":"Maximizing liquid fertilizer concentration during ammoniacal nitrogen recovery using hollow fiber membrane contactors","authors":"Musie Welldegerima Atsbha, Oded Nir","doi":"10.1016/j.memlet.2025.100103","DOIUrl":"10.1016/j.memlet.2025.100103","url":null,"abstract":"<div><div>Hollow fiber membrane contactors (HFMC) can recover high-purity ammonium (liquid) fertilizer from wastewater with low energy and area footprint. Previous studies examined factors such as pH, initial ammonia concentration, flow rate, stream configuration, and acid-stripping solution. However, water flux through the membrane, impacting %N in acid stripping, remains a key barrier to producing commercial-grade liquid fertilizer. This study tested %N enhancement by increasing feed-side salinity to reduce vapor pressure, thereby reducing undesired water flux to the acid side. Two salinity levels (2 M and 5 M NaCl) representing zeolite regeneration solutions were tested. With 5 M NaCl, water flux was nullified, yielding 12 %N (NH<sub>4</sub><sup>+</sup>) over two cycles, considered very high for this technology. In contrast, 2 M NaCl allowed water flux, achieving only 9 %N. In a third cycle, 5 M NaCl further increased %N to ∼14 %, an unprecedented result for HFMC. Water flux was negative (-0.031 L/m²·h) with 5 M and positive (0.015 L/m²·h) with 2 M NaCl, indicating reverse or forward flow. Ammonia removal efficiency and transfer coefficient (<em>K</em>) remained stable. Furthermore, the membrane prevented ion cross-contamination, producing high-purity liquid fertilizer. Operating at higher salinity, as in ammonia-laden regeneration solutions, may be economically feasible due to solution reusability. This approach optimizes feed properties for highly concentrated liquid fertilizer production.</div></div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":"5 2","pages":"Article 100103"},"PeriodicalIF":4.9,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144596231","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

Pressure-drop reduction by oil-infused spacers 注油垫片降低压降

IF 4.7

Journal of Membrane Science Letters Pub Date : 2025-12-01 Epub Date: 2025-10-22 DOI: 10.1016/j.memlet.2025.100109

Arthur Boyko, Alina Lemster, Guy. Z Ramon

引用次数: 0