Articles tagged with Adsorption
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Researchers at Northwestern University developed a metal-filtering sponge that can capture and recover critical metals and heavy-metal pollutants from contaminated water. The new sponge successfully removed lead to below detectable levels with one use and recovered over 90% of the ions during subsequent cycles.
Researchers at Pusan National University have developed high-adsorption phosphates that can efficiently capture radionuclide cesium ions. These phosphates outperform standard adsorbents with record-high adsorption capacities, making them promising candidates for radioactive waste disposal.
Researchers developed GAME-Net, a graph neural network that rapidly evaluates adsorption energy for large molecules like plastics and biomass. The model achieves accuracy comparable to density functional theory (DFT) while utilizing simple molecular representations.
Developed by University of Georgia researchers, the superfoam conducts electricity, cleans polluted water, and resists blood, microbes, and proteins. Its versatility makes it a valuable resource for clinicians and environmental remediation professionals.
Research found that ZrO2 oxygen vacancies greatly facilitate charge transfer to CO2 molecules, leading to improved adsorption and activation. The study suggests t-ZrO2 with oxygen vacancies is most favorable for CO2 adsorption and activation over different phases of ZrO2.
Researchers have developed a new class of materials that can efficiently remove glyphosate from groundwater. The new metal-organic frameworks (MOFs) have a large surface area and can be customized depending on the application.
Researchers at Ulsan National Institute of Science and Technology (UNIST) have identified seven types of zirconium metal clusters found in MOFs and fourteen potential new metal building blocks. This discovery provides a crucial clue to accelerate the development of carbon-neutral porous materials.
Researchers have developed a novel process to convert nitrogen and hydrogen into ammonia at ambient temperature and pressure with high energy efficiency. The process uses a solid polymeric electrolyte and eliminates the need for purification, producing pure ammonia gas.
Engineers at UBC developed a new water treatment that captures up to 99% of PFAS particles, eliminating them from drinking water. The technology is particularly beneficial for rural communities with limited resources, offering a decentralized and in-home solution.
Researchers developed a machine learning model that maps graphene-gas molecule van der Waals complex bonding evolution for selective gas detection. The model achieved 100% accuracy in distinguishing between different atmospheric environments, showcasing its potential for environmental monitoring and non-invasive medical diagnosis.
The study reveals the formation of boron clusters with magic numbers on monolayer borophene, leading to spontaneous transformation into bilayer borophene. Density functional theory calculations identify B5 clusters as the result of in-plane charge distribution and electron delocalization.
Researchers at The University of Manchester have developed stable, porous materials that capture and separate benzene, a volatile organic compound and major air pollutant. These materials, UiO-66 and MFM-300, demonstrate high adsorption of benzene at low pressures and concentrations.
Researchers at USTC found that aerating O2 into the semiconductor reaction system improves H2O2 utilization and converts methane to liquid-phase oxygenates. The adsorption of O2 inhibits H2O2 adsorption, suppressing side reactions.
Researchers have developed an innovative magnetic adsorbent that can remove microplastics 1,000 times smaller than those detectable by existing wastewater treatment plants. The process takes just one hour, compared to days for current methods.
Researchers have identified a new material, TiO2/Fe2O3 nanomaterial, that can clean and improve water quality with a single step treatment. This technology has the potential to improve the lives of millions of people exposed to carcinogenic arsenic through contaminated groundwater.
Scientists developed a method to control the synthesis of single-atom catalysts, enabling the creation of bimetallic Fe-Co electrocatalysts with desired properties. These catalysts showed superior ammonia yield rates and faradaic efficiency under electrocatalytic nitrogen reduction reaction conditions.
Researchers from University of South Australia found that porous silica can prevent fats and carbohydrates from being adsorbed in the body. Engineered particles of purified sand are designed to soak up digestive enzymes, fats, and sugars within the gastrointestinal tract.
Researchers developed hydrophilic slipper surfaces that are both extremely slippery and water-attracting, countering conventional wisdom. These SLIC surfaces have potential applications in biomedical technologies and condensers, where they offer anti-fouling properties and improved efficiency.
A newly developed composite sponge-based air filter has demonstrated strong potential for applications in automobiles and industry, with high efficiency in removing particulate matter under harsh conditions. The filter's unique design and materials ensure good structural stability and adaptability to various environments.
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 used machine learning to predict protein adsorption onto polymer brush films, identifying key film characteristics that impact adsorption. The study found hydrophobicity index to be the most critical parameter, with thickness and density also playing a significant role.
The study reveals significant information on the thermal properties of electric double-layer capacitors, which can help create safer and more reliable energy storage devices. The research team found that charging and discharging alter the heat capacity of EDLCs, leading to a decrease in capacitance.
Researchers have developed an eco-friendly and reusable solution for removing toxic synthetic dyes from wastewater using nanocomposite-based hydrogels. The new material, made from carboxymethyl cellulose (CMC) and graphene oxide, demonstrates high adsorption capacities and retains its effectiveness even after multiple cycles of use.
Researchers at Swiss Federal Laboratories for Materials Science and Technology have discovered a new chemical synthesis method that forms stable benzene rings on a gold surface. This method, called the 'dry' method, avoids toxic byproducts and allows for the observation of molecular reactions in real-time.
Researchers have created a novel sorbent that effectively removes copper and zinc from water solutions, with the ability to be reused for efficient treatment of industrial wastewater and drinking water. The sorbent's adsorption properties were enhanced through modification, allowing for up to 60% removal of heavy metals within minutes.
Researchers developed an optimizer tool to design and evaluate solar-powered adsorption cooling systems, achieving higher coefficient of performance with certain material combinations. The study focused on residential home cooling systems but aims to be extended to higher capacity systems.
A new study by Tel Aviv University researchers found that microplastics absorb and concentrate toxic organic substances, increasing their toxicity by a factor of 10. This may lead to severe impact on human health due to contaminated food and drink.
A recent study employs machine learning to guide the design of novel materials for CO2 capture, identifying elemental composition and textural properties as key factors. The research team's findings suggest prioritizing adsorption parameters and surface area optimization for high CO2 adsorption efficiency.
Researchers found that saliva protein adsorption is influenced by biomaterial surface properties, countering previous studies. The study lays groundwork for improving medical and dental implants' success by controlling the adsorption of proteins from blood plasma.
A new catalyst developed by Tokyo Tech researchers can generate hydrogen gas from ammonia at lower operating temperatures than existing methods. The calcium imide-supported Ni-catalyst produces good ammonia conversion and offers a promising solution for the production of clean hydrogen fuel.
Researchers at Cornell University have developed a method to control the shape of nanoparticles using small molecule adsorption. By varying the concentration of an individual ligand, they can change the particle's shape, opening up new possibilities for applications such as removing micropollutants from the environment.
Researchers developed a new imaging technique to study ligand interactions with nanoparticles, discovering that varying ligand concentration can control particle shape. This approach could lead to the creation of chemical sensors and methods for removing micropollutants from the environment.
Researchers reviewed various nanofibrous membranes for their filtration efficiency and pressure drop, highlighting the trade-off between mechanical adsorption and electrostatic adsorption in nanoparticle removal. Six filter classifications were also presented, including net/nanofiber and conductive filters.
Researchers designed a Cu-Pd bimetallic electrocatalyst that lowers the energy barrier of C2 product generation, resulting in a 50.3% C2 Faradaic efficiency. The catalyst exploits the benefits of both Cu (low energy barrier) and Pd (ultrafast kinetics), addressing CO2 conversion limitations.
Scientists from Okayama University have discovered a high-performance CO2 adsorption material in zeolites at room temperature. The discovery, reported in the Journal of Materials Chemistry A, opens up new possibilities for efficient air purification, including applications in space shuttles and concert halls.
Scientists from Okayama University have demonstrated high-performance gas molecule confinement with boron nitride nanopores, surpassing activated carbon. The study found that the nanoporous structure of p-BN allows for strong interaction between nitrogen and its pores, leading to higher adsorption rates.
Scientists used environmental transmission electron microscopy to visualize epitaxial rotation of gold nanoparticles on titanium dioxide surfaces during CO oxidation. Theoretical calculations showed that the epitaxial orientation could be induced by changing O2 adsorption coverage at the perimeter interface.
Researchers at Pohang University of Science & Technology have developed a highly efficient nickel-based catalyst system that produces high-purity hydrogen fuel with reduced overvoltage. The catalyst combines earth-abundant nickel with oxophilic transition metal elements to optimize adsorption abilities.
Researchers at Kanazawa University developed a simple and cost-effective way to extract palladium and silver from industrial waste. The new method uses ultrasmall particles of cellulose to selectively adsorb metal ions, resulting in high metal ion adsorption capacities and efficient recovery of pure and elemental metals.
A team of researchers at Tokyo Tech successfully used machine learning with an artificial neural network model to predict two key properties of self-assembled monolayers, enabling advanced material screening and design. This approach opens up new possibilities for the development of biomaterials with desired functions.
Researchers developed a novel CO2 separation technology using gate-type adsorbents, achieving high CO2 selectivity and recovery capacity. The adsorbent's flexible structure generates cold heat during adsorption, suppressing temperature rise and improving system efficiency.
A group of researchers developed an IO hybrid adsorbent to remove heavy metal Cadmium(II) from wastewater using the SI-ATRP method. The adsorbent showed high adsorption capacity and regeneration efficiency, making it a potential candidate for water pollution remediation.
Researchers at Nagoya University have developed a one-step fabrication process that enhances the ability of nanocarbons to remove toxic heavy metal ions from water. The new method involves adding amino groups to the nanocarbons, which forms stronger chemical bonds with the heavy metals.
Scientists investigate how liquid flow affects charged particles and surfactants, revealing new insights into aggregation and dispersion. Flow rate can be used to control the behavior of charged particles with specific surfactant types and concentrations.
Researchers have developed a new multilayered complex that displays high-performance near-infrared electrochromism. The complex, prepared by layer-by-layer coordination assembly on metal oxide substrates, exhibits two reversible redox waves and excellent electrochromic performance with a contrast ratio of up to 56% at 1150 nm.
Researchers developed a universal computer model for metal nanoparticle adsorption, accounting for structural characteristics, metal composition, and adsorbates. The model enables predicting adsorption trends on novel nanoparticles, accelerating nanomaterials design.
The research team developed a system that allows for the real-time observation of MOF adsorption behavior, enabling accurate measurements and assessments of gas adsorption isotherms. By analyzing individual pore molecules, they identified a stepwise adsorption process and quantified the effects of pore structure and adsorption molecule...
Scientists at Estonian Research Council developed a new method for improving air purifier efficiency by analyzing oxygen adsorption. The research, published in Surfaces and Interfaces, found that oxygen plays a significant role in photocatalytic processes alongside UV radiation.
Rice University researchers developed a novel molecular sieve that can remove perfluorooctanesulfonic acid (PFOS) from polluted water more efficiently and effectively than current technologies. The nanomaterial features random, large-pore defects that improve its adsorption capacity and fast-adsorption kinetics.
Scientists have demonstrated that adding aluminium atoms to active carbon delivery capsules increases the adsorption of chemotherapy drugs, like 5-Fluorouracil, onto targeted delivery devices. This could lead to more effective cancer treatments with fewer side effects by encapsulating chemo drugs into active carbon.
Researchers have discovered a natural compound that can enhance the elimination of radioactive strontium from the body. The Zn-InsP6 complex has been shown to inhibit the absorption of strontium into the bloodstream and increase its excretion in the feces, potentially reducing radiation doses in humans.
Researchers have developed a new carbon-based material that significantly outperforms current drying agents, with twice the absorbent capacity of industry standard silica gel. The super desiccant can discharge moisture at energy-saving low temperatures, making it suitable for frequent reuse and reducing costs.
Researchers from the University of Pittsburgh have developed a new way to store gases using porous materials, known as MOFs. This could lead to more efficient gas storage and alternative energy production methods.
Scientists developed adsorption-energy-based activity descriptors to improve electrocatalytic activity in energy storage. The descriptors are linked to interfacial electronic coupling, providing a new method for selecting high-activity catalysts and understanding structure-activity relationships.
Researchers at University of Otago used advanced technology to compare fiber types, finding cotton adsorbs least VOCs, while polyester emits the most odors. Wool shows a mix of high adsorption and low release patterns, highlighting intermolecular forces as key factor.
Pitt's John Keith, Giannis Mpourmpakis and Christopher Wilmer received $500K each for projects on CO2 conversion, nanoparticle growth and new 'pseudomaterials'. The grants will support student education and community outreach initiatives.
Researchers have discovered Negative Gas Adsorption (NGA), a counterintuitive phenomenon where materials release gas under pressure increase. This breakthrough has potential applications in rescue systems and separation applications.
Researchers develop methods to accurately simulate methane adsorption and desorption in porous carbon, relevant for energy research and climate change mitigation. The study used computational methods to analyze molecular interactions between methane and activated carbon, providing insights into preventing gas adsorption.
Researchers developed a new method to study metal-organic frameworks (MOFs) storing gases, revealing cooperative gas-gas interactions and superlattice structures. The discovery holds promise for designing more efficient MOFs for carbon capture and hydrogen fuels.
Researchers at Lawrence Berkeley National Laboratory have developed flexible metal-organic frameworks that can store methane efficiently, addressing the low energy density issue with natural gas as a transportation fuel. The new design enables higher usable capacity and internal heat management during adsorption and desorption.