Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Cleaning up oil spills with graphene sponges

Absorption of dodecane marked with red dye from artificial seawater using the graphene sponge. The absorption process was complete in 80 seconds.
Absorption of dodecane marked with red dye from artificial seawater using the graphene sponge. The absorption process was complete in 80 seconds.

Abstract:
Since the discovery and isolation of graphene, physical scientists have been fascinated by the unique physics displayed by the truly two dimensional material, and materials scientists have been scrambling to harness these unique properties to develop its use in one or more "killer applications". Graphene has been proposed for a multitude of high-tech applications, including transparent conductors, fillers for polymeric composites, and electronic heat sinks, to take advantage of its exceptional electrical, mechanical, and thermal properties (for example). However, according to recent results by Professor Rodney Ruoff and co-workers, another more crude application may beat them all to the marketplace: oil spill cleanup.

Cleaning up oil spills with graphene sponges

Germany | Posted on August 10th, 2012

Many different types of materials have been proposed or tested for use in cleaning up oil spills, including zeolites, polymers, activated carbon, and even sawdust. Selective absorption capacity of the oil layer is of paramount importance in such an application, and the toxicity of the absorbent itself is also an important consideration.

In Ruoff's work, a sponge-like graphene structure was fabricated by reducing graphene oxide and then applying a hydrothermal molding procedure in order to achieve a morphology with a high surface area. The researchers then tested the absorbance properties of this material for removing various commercial petroleum products (including kerosene, pump oil, fats, and organic solvents) from artificial seawater.

The remarkable results showed that the graphene sponge absorbed up to 86 times its weight, which was higher than all other common absorbents. The absorbed hydrocarbons were then subsequently recovered from the sponge with a 99% yield using simple heating. Using this procedure, the graphene sponge could then be regenerated and reused up to 10 times without a drop in performance. These exciting results could mean new hope in the unfortunate case of an environmental oil spill, but this type of technology could also be applied in more routine wastewater treatment applications or with industrial separations. The high-tech applications of graphene will come, but, with continued development in this direction, graphene's first "killer application" may not be high-tech at all.

####

For more information, please click here

Copyright © Wiley-VCH Materials Science Journals

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 Links

Link to the original paper on Wiley Online Library

Related News Press

News and information

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Graphene/ Graphite

Researchers printed graphene-like materials with inkjet August 17th, 2017

From hot to cold: How to move objects at the nanoscale: Moving a single gold nanocluster on a graphene membrane, thanks to a thermal gradient applied to the borders: a new study sheds light on the physical mechanisms driving this phenomenon August 10th, 2017

Controlled manipulation: Scientists at FAU are investigating the properties of hybrid systems consisting of carbon nanostructures and a dye August 8th, 2017

Announcing the successful industrial feasibility test of a turnkey quantum Hall system for graphene characterisation and primary resistance metrology August 2nd, 2017

Discoveries

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Announcements

Nagoya physicists resolve long-standing mystery of structure-less transition: Nagoya University-led team of physicists use a synchrotron radiation X-ray source to probe a so-called 'structure-less' transition and develop a new understanding of molecular conductors August 21st, 2017

Tokai University research: Nanomaterial wrap for improved tissue imaging August 21st, 2017

Silk could improve sensitivity, flexibility of wearable body sensors August 20th, 2017

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Environment

Freeze-dried foam soaks up carbon dioxide: Rice University scientists lead effort to make novel 3-D material August 16th, 2017

Two Scientists Receive Grants to Develop New Materials: Chad Mirkin and Monica Olvera de la Cruz recognized by Sherman Fairchild Foundation August 16th, 2017

New approach on research and design for CQD catalysts in World Scientific NANO August 2nd, 2017

Magnetized viruses attack harmful bacteria: Rice, China team uses phage-enhanced nanoparticles to kill bacteria that foul water treatment systems August 2nd, 2017

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