Quantcast
Last updated on April 19, 2014 at 9:20 EDT

Latest Photocatalysis Stories

2011-04-14 10:14:00

KARLSRUHE, Germany, April 14, 2011 /PRNewswire/ -- The exploitation and utilization of new energy sources are considered to be among today's major challenges. Solar energy plays a central role, and its direct conversion into chemical energy, for example hydrogen generation by water splitting, is one of its interesting variants. Titanium oxide-based photocatalysis is the presently most efficient, yet little understood conversion process. In cooperation with colleagues from Germany and...

2011-01-28 22:21:05

Research could lead to cheap, clean ways to produce hydrogen for use in fuel cells A little disorder goes a long way, especially when it comes to harnessing the sun's energy. Scientists from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) jumbled the atomic structure of the surface layer of titanium dioxide nanocrystals, creating a catalyst that is both long lasting and more efficient than most materials in using the sun's energy to extract hydrogen from...

2011-01-25 00:02:24

The first evaluation of air-purifying asphalt and concrete photocatalytic pavements in America was announced today by PURETI Inc., a US-based manufacturer of air-purifying, photocatalytic surface treatments, together with LSU Assistant Professor of Construction Management & Industrial Engineering Marwa Hassan. Photocatalysis is a proven technology "“ most simply described as the opposite of photosynthesis "“ that uses light and a common earth mineral (titanium dioxide) to...

2011-01-12 15:17:31

Rice University discovery greatly improves common disinfectant A simple technique to make a common virus-killing material significantly more effective is a breakthrough from the Rice University labs of Andrew Barron and Qilin Li. Rather than trying to turn the process into profit, the researchers have put it into the public domain. They hope wide adoption will save time, money and perhaps even lives. The Rice professors and their team reported in Environmental Science and Technology, an...

2011-01-11 14:06:06

High energy costs are one drawback of making clean water from waste effluents. According to an article in the journal Biomicrofluidics, which is published by the American Institute of Physics, a new system that combines two different technologies proposes to break down contaminants using the cheapest possible energy source, sunlight. Microfluidics "“ transporting water through tiny channels -- and photocatalysis -- using light to break down impurities "“ come together in the...

2010-04-13 06:50:00

NEW GLOUCESTER, Maine, April 13 /PRNewswire/ -- MGA Cast Stone Inc., a leading manufacture of architectural precast and cast stone, has recently been certified to manufacture photocatalysis cement induced concrete. Produced by Essroc Italcementi Group under the name TX Active, this cement imparts, into concrete, properties enabling it to abate noxious substances produced by human activities such as industry, transport and residential heating systems. Using light energy, photocatalysis can...

2010-01-19 19:34:48

In the battle against bacteria, researchers at the University of Illinois have developed a powerful new weapon "“ an enhanced photocatalytic disinfection process that uses visible light to destroy harmful bacteria and viruses, even in the dark. Based upon a new catalyst, the disinfection process can be used to purify drinking water, sanitize surgical instruments and remove unwanted fingerprints from delicate electrical and optical components. "The new catalyst also has a unique...

9e9561ba065afa6de146ec6e5dac02201
2009-09-09 14:09:51

In an advance toward better treatments for the most serious form of brain cancer, scientists in Illinois are reporting development of the first nanoparticles that seek out and destroy brain cancer cells without damaging nearby healthy cells. The study is scheduled for the Sept. 9 issue of ACS' Nano Letters, a monthly journal. Elena Rozhkova and colleagues note the pressing need for new ways to treat the disease, glioblastoma multiforme (GBM), which often causes death within months of...

2f9c87cc2579a876d526503273bccf7d1
2009-03-05 15:45:09

Dual catalysts may be the key to efficiently turning carbon dioxide and water vapor into methane and other hydrocarbons using titania nanotubes and solar power, according to Penn State researchers. Burning fossil fuels like oil, gas and coal release large amounts of carbon dioxide, a greenhouse gas, into the atmosphere. Rather than contribute to global climate change, producers could convert carbon dioxide to a wide variety of hydrocarbons, but this makes sense to do only when using solar...

2008-09-28 08:20:00

By Shelley, Suzanne NANOTECHNOLOGY A greener, less-expensive method to produce hydrogen fuel may eventually be possible using water with the help of solar energy and nanotube diodes that use the entire spectrum of the sun's energy, according to Penn State scientists. "Other researchers have developed ways to produce hydrogen with mind-boggling efficiency, but their approaches have very high costs," says Craig A. Grimes, professor of electrical engineering. "We are working toward something...