Chemists make breakthrough in carbon capture
Scientists from the University of York have developed an innovative new green method of capturing carbon dioxide (CO2) emissions from power stations, chemical and other large scale manufacturing plants.
Scientists from the University of York have developed an innovative new green method of capturing carbon dioxide (CO2) emissions from power stations, chemical and other large scale manufacturing plants.
Materials Science
Jul 4, 2016
1
260
Scientists reported progress today in using a common virus to develop improved materials for high-performance, rechargeable lithium-ion batteries that could be woven into clothing to power portable electronic devices. They ...
Energy & Green Tech
Aug 23, 2010
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A material that could replace current fungicides (i.e., anti-fungal pesticides), increase food security, and help protect wildlife has been discovered.
Biochemistry
Jan 9, 2024
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183
The first scientific analysis of nutrient levels in edible microgreens has found that many of those trendy seedlings of green vegetables and herbs have more vitamins and healthful nutrients than their fully grown counterparts. ...
Biochemistry
Aug 29, 2012
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4
The intersection of nanotechnology and green chemistry presents an excellent opportunity to ensure that both fields can learn from each other, argues John C. Warner in Green Chemistry and Letters.
Bio & Medicine
Oct 27, 2016
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18
Plastic waste is one of the worst forms of trash because it takes so long to degrade, thus overflowing our landfills and polluting our oceans and waterways. But what if we could make plastic from a recycled, natural, biodegradable ...
Materials Science
Sep 26, 2011
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2
A new nanotech catalyst developed by McGill University Chemists Chao-Jun Li, Audrey Moores and their colleagues offers industry an opportunity to reduce the use of expensive and toxic heavy metals. Catalysts are substances ...
Nanomaterials
Feb 16, 2010
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0
In the most recent issue of the academic journal Science, the case is made for a future where the materials and chemicals that make up the basis of our society and our economy are healthful rather than toxic, renewable rather ...
Other
Jan 24, 2020
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195
(PhysOrg.com) -- Alternative fuel sources for cars may have a glowing future as a Kansas State University graduate student is working to replace petroleum fuels with ones made from sunlight.
Materials Science
Sep 13, 2011
13
0
Scientists in Delaware say they have developed a new hydrogen storage method -- carbonized chicken feather fibers -- that can hold vast amounts of hydrogen, a promising but difficult to corral fuel source, and do it at a ...
Materials Science
Jun 23, 2009
15
0
Green chemistry, also called sustainable chemistry, is a chemical philosophy encouraging the design of products and processes that reduce or eliminate the use and generation of hazardous substances. Whereas environmental chemistry is the chemistry of the natural environment, and of pollutant chemicals in nature, green chemistry seeks to reduce and prevent pollution at its source. In 1990 the Pollution Prevention Act was passed in the United States. This act helped create a modus operandi for dealing with pollution in an original and innovative way. It aims to avoid problems before they happen.
As a chemical philosophy, green chemistry applies to organic chemistry, inorganic chemistry, biochemistry, analytical chemistry, and even physical chemistry. While green chemistry seems to focus on industrial applications, it does apply to any chemistry choice. Click chemistry is often cited as a style of chemical synthesis that is consistent with the goals of green chemistry. The focus is on minimizing the hazard and maximizing the efficiency of any chemical choice. It is distinct from environmental chemistry which focuses on chemical phenomena in the environment.
In 2005 Ryoji Noyori identified three key developments in green chemistry: use of supercritical carbon dioxide as green solvent, aqueous hydrogen peroxide for clean oxidations and the use of hydrogen in asymmetric synthesis. Examples of applied green chemistry are supercritical water oxidation, on water reactions and dry media reactions.
Bioengineering is also seen as a promising technique for achieving green chemistry goals. A number of important process chemicals can be synthesized in engineered organisms, such as shikimate, a Tamiflu precursor which is fermented by Roche in bacteria.
There is some debate as to whether green chemistry includes a consideration of economics, but by definition, if green chemistry is not applied, it cannot accomplish the reduction in the "use or generation of hazardous substances."
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