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ISSN: 2772-8234

Robust positively charged polyurea nanofiltration membranes with acid resistance for efficient lithium extraction and recovery

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...

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Incorporating polyvinylpyrrolidone modified HOF-101 into Pebax membranes for efficient toluene/N2 separation

Hybrid membranes hold great promise in the recovery of volatile organic compounds (VOCs). Hydrogen-bonded organic framework (HOF), a class of hydrogen-bonded crystalline porous materials with high affinity...

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Separation mechanism, selectivity enhancement strategies and advanced materials for mono-/multivalent ion-selective nanofiltration membrane

Mono-/multivalent ion-selective separation has become a common requirement at the water-energy nexus, including energy storage and conversion, water purification, and sustainable industrial processes....

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Hybrid energy harvesting enabled by a covalent organic framework membrane

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...

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Endowing the nanostructured ion channels of anion conductive membranes with negative charge to boost the Cl−/SO42− ion separation via electrodialysis

Construction of homogeneous polymer ion-exchange membranes (IEMs) with suitable ion transport channels and stable structures is crucial to the separation of mono-/multi-valent anions. Amphoteric ion-exchange...

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EVOH functionalized PE battery separator as the porous substrate for TFC organic solvent nanofiltration membranes

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,...

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Membranes with hollow bowl-shaped window for CO2 removal from natural gas

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...

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Sandwich-like composite membrane for advanced radiative cooling applications

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)....

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Preparation of high-performance pervaporation membranes for ethanol dehydration using a layer-by-layer self-assembly method

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....

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Robust methoxy-based covalent organic frameworks membranes enable efficient near-molecular-weight selectivity

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...

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Constructing heterogeneously wettable nanofiber membrane for highly efficient oil refining

Superhydrophobic membranes are highly energy-efficient for refining the oil from water-in-oil emulsions. Nevertheless, the poor solvent resistance and the ineffectiveness in separating nano-sized water...

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Size effect of porous filler in mixed matrix membranes for faster hydrogen permeation from methane-containing mixtures

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...

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Accurate separation and recovery of humic substances from landfill leachate concentrate by triethanolamine-based loose nanofiltration membranes

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...

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Membrane materials targeting carbon capture and utilization

Over the past decades, fossil fuel combustion has emitted large quantities of CO2 into the atmosphere, resulting in global climate change. Nowadays, it's considered a feasible strategy to capture CO2...

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Facilitated transport membranes for CO2/CH4 separation - State of the art

Membrane separation is a promising alternative for gas purification. Facilitated transport (FT) membranes, with reversible reactions to promote CO2 transport, can simultaneously obtain high CO2 permeability...

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Polymer membranes for organic solvent nanofiltration: Recent progress, challenges and perspectives

The development of polymer materials and polymer membrane fabrication techniques in recent years greatly elevates the importance and feasibility of organic solvent nanofiltration (OSN) technology, while...

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Preparation of COF-based membranes via chiral induction for efficient enantioselective resolution

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...

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Rejuvenation of reverse osmosis polyamide membranes degraded by chlorine in the presence of ferric chloride

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...

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Recent advances of thin film composite nanofiltration membranes for Mg2+/Li+ separation

The prevalent adoption of lithium-ion batteries (LIBs) has sparked a surge in interest regarding lithium extraction, particularly from lithium-rich brines. As some brine sources contain a higher ratio...

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Advanced microporous membranes for H2/CH4 separation: Challenges and perspectives

The utilization of hydrogen is regarded as the effective approach to arrive at the global carbon-neutrality target. Hydrogen/methane separation is a necessary unit for the hydrogen production in the...

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Three-in-one polyimide-based blended membrane for Upgrading helium separation performance and physical aging resistance

Polyimide membranes have attracted considerable attention for gas separation applications; however, achieving efficient helium (He) separation remains a significant challenge due to the low fractional...

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Porous organic cage separation membranes: Exploratory journey from preparation to application

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,...

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Development and emerging application of membrane degassing technology

With the development of membrane separation technology, some traditional separation and purification methods have been replaced by membrane technology. Compared to traditional method, the membrane method...

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Eliminating lattice defects in UiO-66-NH2 membrane towards high-precision desalination

Zirconium-based MOF membranes exhibit significant potential in energy-efficient desalination. Nevertheless, framework defect elimination, which represents an effective protocol to enhance their molecular...

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Three-dimensional covalent organic frameworks for advanced membrane separations

Three-dimensional covalent organic frameworks (3D COFs) have emerged as a promising class of crystalline materials due to large surface areas, interconnected porosity, and accessible active sites. Their...

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