Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

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

Heat makes electrons’ spin in magnetic superconductors April 26th, 2015

QD Vision Wins 2015 Bronze Edison Award for Color IQ™ Quantum Dot Technology April 26th, 2015

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Nanotubes/Buckyballs/Fullerenes

SouthWest NanoTechnologies CEO Dave Arthur to Speak at NanoBCA DC Roundtable on May 19 in Washington DC April 20th, 2015

How to maximize the superconducting critical temperature in a molecular superconductor: International team led by Tohoku University opens new route for discovering high Tc superconductors April 19th, 2015

Nanotubes with two walls have singular qualities: Rice University lab calculates unique electronic qualities of double-walled carbon nanotubes April 16th, 2015

MIT sensor detects spoiled meat: Tiny device could be incorporated into 'smart packaging' to improve food safety April 15th, 2015

Discoveries

Heat makes electrons’ spin in magnetic superconductors April 26th, 2015

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Fast and accurate 3-D imaging technique to track optically trapped particles April 24th, 2015

Announcements

Heat makes electrons’ spin in magnetic superconductors April 26th, 2015

QD Vision Wins 2015 Bronze Edison Award for Color IQ™ Quantum Dot Technology April 26th, 2015

SEFCU, SUNY Poly CNSE Announce Winning Student-Led Teams in the 6th Annual $500,000 New York Business Plan Competition April 25th, 2015

Northwestern scientists develop first liquid nanolaser: Technology could lead to new way of doing 'lab on a chip' medical diagnostics April 25th, 2015

Environment

Nanoparticles Used to Improve Mechanical, Thermal Properties of Cellulose Fibers April 23rd, 2015

Young NTU Singapore spin-off clinches S$4.3 million joint venture with Chinese commercial giant March 23rd, 2015

New processing technology converts packing peanuts to battery components March 22nd, 2015

EU Funded PCATDES Project has completed its half-period with success March 19th, 2015

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