Articles tagged with Adsorption
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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.