Robust methoxy-based covalent organic frameworks membranes enable efficient near-molecular-weight selectivity
2025
Uniform pore size is essential for molecular sieving in separation membranes. Traditional nanofiltration (NF) polymer membranes struggle with precise structure control due to random chain packing and...
Preparation of COF-based membranes via chiral induction for efficient enantioselective resolution
2025
Efficient chiral resolution is highly important in the food, pharmaceutical and agriculture industries because of the distinctive biological or pharmaceutical properties of enantiomers. Membrane-assisted...
Porous organic cage separation membranes: Exploratory journey from preparation to application
2025
Porous organic cages (POCs) represent a novel class of low-density crystalline materials that exhibit distinctive pores comparable to those observed in three-dimensional extended network materials,...
Hybrid energy harvesting enabled by a covalent organic framework membrane
2025
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...
Membranes with hollow bowl-shaped window for CO2 removal from natural gas
2025
Mixed matrix membranes (MMMs) are crucial for CO2 separation and offer a potential solution to overcome conventional gas separation. Nevertheless, MMMs face challenges due to interfacial defects in...
EVOH functionalized PE battery separator as the porous substrate for TFC organic solvent nanofiltration membranes
2025
Scholarly discourse surrounding the thin film composite organic solvent nanofiltration (TFC OSN) membrane field has largely been dominated by focusing on the optimization of the selective layer. However,...
Robust positively charged polyurea nanofiltration membranes with acid resistance for efficient lithium extraction and recovery
2025
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...
Preparation of high-performance pervaporation membranes for ethanol dehydration using a layer-by-layer self-assembly method
2025
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....
Size effect of porous filler in mixed matrix membranes for faster hydrogen permeation from methane-containing mixtures
2025
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...
Accurate separation and recovery of humic substances from landfill leachate concentrate by triethanolamine-based loose nanofiltration membranes
2025
The treatment of landfill leachate concentrate poses significant environmental challenges, particularly in the separation and recovery of valuable humic substances from high salt concentrations. In...
Rejuvenation of reverse osmosis polyamide membranes degraded by chlorine in the presence of ferric chloride
2025
Reverse osmosis (RO) polyamide membranes are widely used for water treatment applications. However, certain processes such as wastewater reuse require regular membrane cleaning and disinfection with...
Vapor permeation (VP) of water (H2O)/ acetic acid (AcOH) mixtures via bis(triethoxysily)ethane (BTESE) membranes
2025
Bis(triethoxysilyl)ethane (BTESE)-derived organosilica membranes prepared using sol-gel processing, were used in vapor permeation (VP) to dehydrate aqueous acetic acid (AcOH) solutions. It was discovered...
Mixed matrix membranes by incorporating methyl-functionalized covalent organic framework into PDMS for high flux ethanol/water separation
2025
Polydimethylsiloxane (PDMS) membranes are commonly utilized for ethanol-water separation. However, the separation performance is insufficient owing to the inherent trade-off between permeability and...
Mass transfer in membrane contactors for separating levulinic acid, formic acid, and furfural from biomass hydrolysate with physical organic solvents
2025
Levulinic acid (LA), formic acid (FA), and furfural were separated from an aqueous solution using membrane contactors with organic solvents. The aqueous mixture, simulating LA production's biomass hydrolysate...
Advanced bipolar membranes with earth-abundant water dissociation catalysts for durable ampere-level water electrolysis
2025
Green hydrogen production via water electrolysis is a crucial pathway for sustainable energy generation. Bipolar membrane water electrolysis (BPMWE) offers several advantages, including kinetically...
Cellulose-based separation membranes: A sustainable evolution or fleeting trend?
2025
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...
Highly stable cation-exchange membranes for lithium recovery from acidic lithium ore leachate
2025
Electrodialysis technology is widely deployed in the field of separation due to its simplicity of operation and sustainability, where ion-exchange membranes are the most critical components in this...
Chiral membrane with intrinsic microporosity for enantioselective electrochemical recognition of tryptophan enantiomers
2025
Enantioselective recognition and separation of chiral molecules are pivotal in biomedical and pharmaceutical fields due to their distinct biological activities. Drawing inspiration from biological transmembrane...
Imidazole-functionalized siloxane cross-linked poly(aryl ether sulfone) anion exchange membranes for monovalent anion separation via electrodialysis
2025
A siloxane cross-linked, amino-long-chain modified poly(aryl ether sulfone) (PPH-ImSiO-NH2-X) anion exchange membrane (AEM) has been synthesized. The results demonstrated that the perm-selectivity (PSO42−Cl−)...
Anchoring metal ions in iCOF to enhance the charge density for boosting CO2 separation in mixed matrix membranes
2025
Ionic covalent organic frameworks (iCOFs), with electrostatic microenvironment suitable for CO2 separation, are regarded as ideal materials for gas membrane separation. However, the improvement of CO2/CH4...
Thermally stable polyamide-imide (PAI) hierarchical porous separator for lithium metal batteries
2025
Although the structural design and physicochemical characteristics of separators are critical determinants of lithium metal batteries safety and overall performance, commercial polyolefin separators...
Research progress and challenges in polyimide and polyimide-derived gas separation membranes: A review
2025
Polyimide (PI) has been widely regarded as an ideal material for high-performance gas separation membranes due to its exceptional mechanical strength, thermal and chemical stability, excellent film-forming...
Sandwich-like composite membrane for advanced radiative cooling applications
2025
Passive daytime radiative cooling (PDRC) offers an energy-efficient method of cooling by reflecting sunlight and emitting heat to the cold outer space through the atmospheric transparent window (ATW)....
Integration of oxidation processes and ceramic membrane filtration for advanced water treatment: A review of foulant-membrane interactions
2025
Membrane filtration technology emerges as a robust and efficient solution in the global effort to alleviate water scarcity, offering a reliable means to deliver clean and safe drinking water. However,...