A new generation of high surface-area porous materials for removing atrazine from water supplies has been developed by researchers at the University of Illinois at Urbana-Champaign. The low-cost and wear-resistant fibers also can remove the hazardous contaminants chloroform and trichloroethylene, both byproducts of the commonly used chlorine disinfection process.
"We’ve shown that we can remove all these impurities to well below the maximum contaminant levels established by the Environmental Protection Agency," said James Economy, a professor of materials science and engineering at Illinois. "Having increased pore size and higher surface area, these fibers work much better than commercially available granulated activated carbon."
Atrazine is one of the most widely used herbicides in the United States. More than 75 million pounds of atrazine are applied annually. Spread on farm fields and residential lawns to control weeds, atrazine can work its way into local waterways and municipal drinking supplies. Millions of Americans unknowingly ingest atrazine with their tap water.
James E. Kloeppel | University of Illinois News Bure
Etching Microstructures with Lasers
25.10.2016 | Fraunhofer-Institut für Lasertechnik ILT
Applying electron beams to 3-D objects
23.09.2016 | Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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