Nanotechnology Now

Our NanoNews Digest Sponsors


Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > Nanotech Filter Separates Oil and Water

A scanning electron microscopy image of the carbon nanotube-coated filter. For comparison, the inset is bare stainless steel mesh.
A scanning electron microscopy image of the carbon nanotube-coated filter. For comparison, the inset is bare stainless steel mesh.

Abstract:
Water and oil may not mix, but, like two boxers nearing the end of the final round, they can get awfully tangled up.

Now, Michigan Technological University scientists Yoke Khin Yap and Jaroslaw Drelich have created a filter that separates the two substances as quickly and cleanly as a ref breaking up a clinch.

Nanotech Filter Separates Oil and Water

Houghton, MI | Posted on April 12th, 2011

Their fine, stainless steel mesh is coated with carbon nanotubes about 10 microns across. "They have a super-honeycomb structure that repels water," says Yap, an associate professor of physics. "But they like organic stuff, like oil."

The team poured an emulsion of water and gasoline over the filter to test it. Sure enough, the gas dripped through; all but 20 percent of the water stayed put.

It's not as if you could filter the Gulf of Mexico through the device, Yap cautions. Their prototype is about the size of a quarter. Plus, the water drops can actually clog the spaces between the nanotubes, making it hard for anything to get through. "But the attractive thing is that it's so simple," he says. "It runs by gravitation."

Drelich, an associate professor of materials science and engineering, thinks the filter has real-world potential. "These were just our first set of experiments," he says. "We could supply electricity to it to heat it up, reducing the oil's viscosity evaporating the water. We could also create a vacuum that would suck oil through the filter to the other side. A good engineering design could get rid of clogging problem."

Such technology could help purify oil from Canada's tar sands, which is contaminated by traces of corrosive salt water. Or, it could be used to recover oil from the wastewater of ocean-going vessels. It might even be able to scrub the oil inside your car's engine.

"Our design would be completely novel, because it relies on nanotechnology, and it could be competitive," says Drelich.

Their work was published in the Feb. 2 edition of the journal Carbon and is funded by the National Science Foundation.

####

About Michigan Technological University
Michigan Technological University (www.mtu.edu) is a leading public research university developing new technologies and preparing students to create the future for a prosperous and sustainable world. Michigan Tech offers more than 130 undergraduate and graduate degree programs in engineering; forest resources; computing; technology; business; economics; natural, physical and environmental sciences; arts; humanities; and social sciences.

For more information, please click here

Contacts:
Marcia Goodrich
906-487-2343

Administration Building G14

Copyright © Michigan Technological University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Animal study shows flexible, dissolvable silicon device promising for brain monitoring: Other applications include post-operative observation for vascular, cardiac, and orthopaedic procedures, finds Penn study May 5th, 2016

Speedy ion conduction in solid electrolytes clears road for advanced energy devices May 5th, 2016

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Clues on the path to a new lithium battery technology: Charging produces highly reactive singlet oxygen in lithium air batteries May 5th, 2016

Govt.-Legislation/Regulation/Funding/Policy

Animal study shows flexible, dissolvable silicon device promising for brain monitoring: Other applications include post-operative observation for vascular, cardiac, and orthopaedic procedures, finds Penn study May 5th, 2016

Speedy ion conduction in solid electrolytes clears road for advanced energy devices May 5th, 2016

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Clues on the path to a new lithium battery technology: Charging produces highly reactive singlet oxygen in lithium air batteries May 5th, 2016

Nanotubes/Buckyballs/Fullerenes

Non-animal approach to predict impact of nanomaterials on human lung published Archives of Toxicology publishes workshop recommendations May 2nd, 2016

Clay nanotube-biopolymer composite scaffolds for tissue engineering May 1st, 2016

NREL finds nanotube semiconductors well-suited for PV systems April 27th, 2016

Researchers create artificial protein to control assembly of buckyballs April 27th, 2016

Discoveries

Animal study shows flexible, dissolvable silicon device promising for brain monitoring: Other applications include post-operative observation for vascular, cardiac, and orthopaedic procedures, finds Penn study May 5th, 2016

Speedy ion conduction in solid electrolytes clears road for advanced energy devices May 5th, 2016

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Unique nano-capsules promise the targeted drug delivery: Russian scientists created unique nano-capsules for the targeted drug delivery May 5th, 2016

Announcements

Speedy ion conduction in solid electrolytes clears road for advanced energy devices May 5th, 2016

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Clues on the path to a new lithium battery technology: Charging produces highly reactive singlet oxygen in lithium air batteries May 5th, 2016

Unique nano-capsules promise the targeted drug delivery: Russian scientists created unique nano-capsules for the targeted drug delivery May 5th, 2016

Water

Engineers create a better way to boil water -- with industrial, electronics applications May 5th, 2016

Nanoparticles present sustainable way to grow food crops May 1st, 2016

Novel anti-biofilm nano coating developed at Ben-Gurion U.: Offers significant anti-adhesive potential for a variety of medical and industrial applications April 25th, 2016

Adding some salt to the recipe for energy storage materials: Researchers use common table salt as growth template April 22nd, 2016

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







Car Brands
Buy website traffic