Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Heavy Metal Free Environment with Plasma-Modified Carbon Nanotubes

Abstract:
Carbon nanotubes are a fascinating type of carbon which have attracted enormous interest since their discovery only twenty years ago. With their high specific surface areas they offer ideal conditions for the removal of many kinds of organic and inorganic pollutants from various aqueous solutions.

Heavy Metal Free Environment with Plasma-Modified Carbon Nanotubes

Germany | Posted on June 1st, 2011

Now, scientists at the Institute of Plasma Physics, CAS, have developed a way to modify multiwalled carbon nanotubes (MWCNTs) with macromolecular functional groups that significantly enhance their dispersion properties and adsorption capacities.

Using an environmentally friendly N2 plasma induced grafting technique, vinylpyridine was grafted on the MWCNT surfaces. The grafted vinylpyridine gives the MWCNTs high dispersion in aqueous solutions,and so the available functional groups of vinylpyridine form strong complexes with metal ions, and thereby enhances the adsorption of these ions onto the nanotubes. For example, looking at the adsorption capacity of Pb(II) ions, as an representative metal ion, the group's vinylpyridine grafted MWCNTs had a far higher higher adsorption capacity than any currently reported. This work highlights the application of plasma techniques not only in material science, but also in environmental pollution management. Through the grafting of special functional groups on nanomaterials by plasma technique, the nanomaterial can not only have high preconcentration and solidification of pollutants from large volumes of aqueous solutions, but also have a selectivity for different pollutant by grafting special functional groups.

Dr. Xiangke Wang of the Institute of Plasma Physics, CAS, China, leader of the team of researchers involved in this work, said: "This is a simple, environmentally friendly process to modify the properties of carbon nanotubes. The surface modified carbon nanotubes have high adsorption capacity in the removal of heavy metal ions and organic pollutants in environmental pollution cleanup."

####

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

X. Wang et al., Plasma Process. Polym., 2011 ; DOI: 10.1002/ppap.201000192

Related News Press

News and information

Nanoparticles could allow for faster, better medicine: Exposure of nanoparticles in the body allows for more effective delivery November 20th, 2017

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

The stacked color sensor: True colors meet minimization November 16th, 2017

Nanotubes/Buckyballs/Fullerenes/Nanorods

TUBALL nanotube-based concentrates recognised as the most innovative raw material for composites by JEC Group November 7th, 2017

Nanotube fiber antennas as capable as copper: Rice University researchers show their flexible fibers work well but weigh much less October 23rd, 2017

Long nanotubes make strong fibers: Rice University researchers advance characterization, purification of nanotube wires and films October 17th, 2017

How to draw electricity from the bloodstream: A one-dimensional fluidic nanogenerator with a high power-conversion efficiency September 11th, 2017

Discoveries

Nanoparticles could allow for faster, better medicine: Exposure of nanoparticles in the body allows for more effective delivery November 20th, 2017

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

The stacked color sensor: True colors meet minimization November 16th, 2017

Announcements

Nanoparticles could allow for faster, better medicine: Exposure of nanoparticles in the body allows for more effective delivery November 20th, 2017

ICN2 researchers compute unprecedented values for spin lifetime anisotropy in graphene November 17th, 2017

Math gets real in strong, lightweight structures: Rice University researchers use 3-D printers to turn century-old theory into complex schwarzites November 16th, 2017

The stacked color sensor: True colors meet minimization November 16th, 2017

Environment

Dendritic fibrous nanosilica: all-in-one nanomaterial for energy, environment and health November 4th, 2017

Nano-sized gold particles have been shaped to behave as clones in biomedicine November 3rd, 2017

Electrostatic force takes charge in bioinspired polymers November 2nd, 2017

How harmful are nano-copper and anti-fungal combinations in the waterways? October 27th, 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