Articles tagged with Separation Membranes
A study at the University of Buffalo discovered a new membrane that separates hydrogen from CO2 with a record-breaking selectivity of 1,800, outperforming previous rates by 18 times. The crosslinked polyamines-based membrane also exhibits self-healing properties and stability under extreme conditions.
Researchers have developed a smart hydrogel surface that can instantly recognize whether it's in contact with oil or water and switch its behavior to separate the two. The surface achieves a record-breaking separation speed of 17,750 liters per square meter per hour, three to five times faster than most current membranes.
A new membrane developed by MIT researchers separates different types of fuel based on their molecular size, eliminating the need for energy-intensive distillation. The membrane can efficiently separate heavy and light components from oil, and is resistant to swelling.
A team of scientists has developed a new method for desalination that uses liquid tin to simultaneously purify water and recover valuable metals. The process, powered by concentrated solar energy, can transform desalination brine into a valuable resource.
Researchers at Georgia Tech have developed new polymer membranes that can improve distillation processes, reducing the global energy and water use. The DUCKY polymers use a novel combination of characteristics to selectively bind desirable molecules, making them a promising solution for industries.
Researchers developed a poly(p-terphenyl isatin) anion exchange membrane with quaternary ammonium and piperidine cations that provides excellent mechanical properties and OH-ion conductivity. The material's stability and tensile strength reach new heights, paving the way for industrialized application of anion-exchange membranes.
Researchers developed a graphene-based proton-exchange membrane that successfully suppresses the crossover phenomenon, allowing for high proton conductivity while blocking fuel molecule penetration. This study contributes to the development of advanced fuel cells as an alternative to hydrogen-type fuel cells.
Researchers have created self-assembling protein-mimics that can selectivity transport water across membranes while rejecting salts, offering a potential solution to improve energy efficiency in industrial water purification. The oligourea foldamers are smaller and more stable than existing artificial water channels.
Two UMass Lowell researchers, Meg Sobkowicz-Kline and Akshay Kokil, have received $1 million in grants to redirect plastic waste and develop a sustainable circular economy. Their projects focus on improving plastic film packaging recycling and creating a future workforce for plastics, aiming to increase recycling rates and reduce waste.
Researchers developed poly(alkyl-biphenyl pyridinium)-based anion exchange membranes with hydrophobic side chains, achieving high permoselectivity for monovalent ions like chloride and hydroxide. The new membranes show excellent alkali stability and can separate multiple multivalent anions with high selectivity.
New polymer nanomembranes with aligned supramolecular macrocycles exhibit superior filtration properties, exceeding conventional membranes. They enable precise tuning of pore size for accurate molecular separations in industries such as pharmaceuticals.
Researchers at Drexel University have developed a new MXene material that can efficiently remove mercury from contaminated water. The carboxylated titanium carbide MXene has shown superior performance in removing mercury ions compared to existing adsorbents, with the ability to capture 95% of mercury ions within one minute.
Researchers have developed a new type of separation membrane that can separate hydrogen from methane at speeds 100 times faster than conventional membranes. The graphene-wrapped zeolite membrane achieves a high separation factor of 245, making it suitable for energy-saving separation technologies in various industries.
Researchers from Japan have developed a new method to synthesize a pure Si-CHA membrane showing much higher CO2 separation performance than existing membranes. The key to this achievement is using a porous silica substrate instead of alumina, eliminating problems with pore size reduction and improving efficiency.
Researchers at Lawrence Berkeley National Laboratory have developed water-walking liquid robots that can retrieve and deliver precious chemicals autonomously. The robots use chemistry to control buoyancy and do not require electrical energy, making them ideal for applications such as chemical synthesis and drug delivery.
Researchers from USTC constructed a novel COF membrane with sub-2-nanometer channels, exhibiting high monovalent cation permeation rates and low multivalent cation rates. The membrane's ion selectivity outperforms reported membranes.
Researchers at Osaka University have developed a new method for detecting single DNA molecules directly from individual cells, eliminating the need for subsequent steps. The 3D-integrated nanopore allows for efficient delivery of released DNA molecules to the sensing zone, enabling robust detection and analysis.
Researchers have developed a chiral separation membrane using two-dimensional layered materials, showing high selective permeation efficiency among various enantiomers. The membrane can efficiently separate left-handed and right-handed molecules like limonene, with potential applications in sewage processing and desalination.