Articles tagged with Adsorption
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.
Researchers have discovered that vertically aligned carbon nanotubes (VACNTs) can be used to capture and store greenhouse gases like carbon dioxide and sulfur dioxide more effectively than traditional adsorption materials. The study found that adjusting the morphological parameters of VACNTs can significantly impact gas adsorption.
Researchers at Berkeley Lab have discovered a way to improve the cost-effectiveness of CO2 scrubbing using metal-organic frameworks (MOFs). By appending diamine molecules, they were able to more than triple the CO2-scrubbing capacity and reduce parasitic energy.
A team of researchers from Berkeley Lab has made the first in situ electronic structure observations of a metal-organic framework (MOF) as it adsorbs carbon dioxide gas. The study demonstrates the effectiveness of Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy in probing MOF chemistry and gas adsorption.
Researchers at Oak Ridge National Laboratory developed a technique to examine pore sizes in nanoporous carbons, revealing higher local structural order than previously believed. This discovery allows for more efficient gas extraction from shale deposits and potential carbon dioxide sequestration technologies.
Researchers use small angle neutron scattering to study ion adsorption in pores of different sizes, understanding how factors like pore size and electrolyte properties affect ion concentration. The technique provides new insights into optimizing energy storage and water desalination systems.
The Department of Energy's Pacific Northwest National Laboratory will receive $2.8 million to develop a next-generation adsorption chiller that is smaller, lighter, and operates under extreme temperatures. The system could reduce diesel fuel use by up to 50% and save lives by reducing attacks on American soldiers.
Researchers at the University of Jyväskylä Nanoscience Center used computational modeling to understand how redox chemistry affects the binding of gold particles on modified calcium oxide surfaces. They found that the energy released during a redox reaction correlates with the ability of the dopant metal atom to donate an electron.
Researchers have made significant breakthroughs in extracting uranium from seawater, which holds at least 4 billion tons of the precious material. The economic analysis suggests that uranium from the oceans could help solidify nuclear energy potential as a sustainable electricity source for the 21st century.
Researchers at Oak Ridge National Laboratory have developed a material called HiCap that can extract valuable and precious dissolved metals from water. The material effectively removes toxic metals from water and has been shown to outperform current best adsorbents in terms of capacity, speed and selectivity.
The study used proteomic techniques to analyze the effects of grafted methoxypoly(ethylene glycol) on plasma protein adsorption. Results showed that the polymer-mediated surface camouflage prevented immune recognition signals, enhancing biocompatibility and reducing alloimmunization.
Researchers have developed a single molecule imaging technology called BEAST to map the electromagnetic field inside nano-sized metal hotspots. The results show highly localized fields with exponential shapes that rise steeply to peaks and decay quickly.
Researchers found that coffee husks can adsorb almost 50 milligrams of hexavalent chromium per gram, with two-thirds of the absorbed chromium recoverable. The use of coffee husks presents a viable and cost-effective part of a waste-management strategy due to their availability, safety in storage, and lack of protein.
Researchers at NC State University developed a screening tool to predict nanoparticle interactions with biological systems, allowing for improved safety and applications in drug delivery. The study uses molecular probes to create 'fingerprints' identifying how nanoparticles will behave inside the human body.
Researchers have found a compound in smokers' breath that can detect recent tobacco consumption with high accuracy. The compound, 2,5-dimethylfuran, is only present in the breath of smokers within the last three days.
Researchers developed effective methods to remove arsenic from drinking water using zero-valent iron and granular titanium dioxide adsorbent. The studies demonstrated that high DO content and low solution pH increase iron corrosion, while TiO2 adsorbent is very effective for removing arsenic in groundwater.
Researchers from Virginia Tech studied the fate of arsenic fed to poultry and found that organic arsenic is biotransformed to inorganic arsenic, which can be toxic. However, surprisingly, low concentrations of arsenic are transported to streambeds instead of being retained by aquifers.
Researchers at Penn State Energy Institute have developed a new process for removing organic sulfur from hydrocarbon fuels using low-temperature and pressure methods. The SARS process selectively adsorbs sulfur on metal species without affecting aromatic compounds.
Researchers at the University of Illinois have developed a way to use old tires and pistachio shells to remove mercury emissions from power plants. The activated-carbon adsorbents show promise as a cost-effective alternative to current commercial products.
Ulrike Becker and Wolfgang Glasser's research on fluorine-containing cellulose esters reveals a way to change adsorption in fibers, improving cigarette filter performance. The study also advances the understanding of cotton's structure.
Researchers John Larese and Laurence Passell won the DOE's 1998 Materials Science Award for their pioneering work on neutron scattering studies of films adsorbed on graphite and magnesium oxide surfaces. They developed a new understanding of the structure and properties of these films, which could lead to breakthroughs in adhesion, cor...
Dr. Ramaswamy Anantheswaran has successfully developed a packaging method that regulates humidity within mushroom packages, improving shelf life and quality. The modified humidity packaging works by utilizing moisture adsorbers to maintain optimal levels of moisture, reducing the growth of bacteria and discoloration.
A team of University of Illinois researchers has developed a new, cost-effective way to filter pollutants from the environment using activated glass fibers. The fibers offer improved contact efficiency, self-containment, and ease of reactivation compared to traditional activated carbon granules.
Scientists used a scanning tunneling microscope to visualize the porous microstructure within an activated carbon fiber and relate it to its adsorption properties. The findings reveal that pore size, shape, and surface chemistry play a crucial role in determining absorption capabilities.