Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

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

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Graphene chips are close to significant commercialization October 1st, 2014

Production of Filters for Separation of Water from Petroleum Products in Iran October 1st, 2014

Yale University and Leica Microsystems Partner to Establish Microscopy Center of Excellence: Yale Welcomes Scientists to Participate in Core Facility Opening and Super- Resolution Workshops October 20 Through 31, 2014 September 30th, 2014

Nanotubes/Buckyballs

Elsevier Publishes New Content on Graphene and Materials Science: Books Discuss Properties and Emerging Applications of Carbon Nanotubes, Graphene and Nanomaterials September 25th, 2014

Future flexible electronics based on carbon nanotubes: Study in Applied Physics Letters show how to improve nanotube transistor and circuit performance with fluoropolymers September 23rd, 2014

Nanotubes help healing hearts keep the beat: Rice University, Texas Children’s Hospital patch for defects enhances electrical connections between cells September 23rd, 2014

SouthWest NanoTechnologies (SWeNT) Receives NIST Small Business Innovation Research (SBIR) Phase 1 Award to Produce Greater than 99% Semiconducting Single-Wall Carbon Nanotubes September 19th, 2014

Discoveries

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Production of Filters for Separation of Water from Petroleum Products in Iran October 1st, 2014

Ad-REIC vaccine: A magic bullet for cancer treatment September 30th, 2014

New Topical Hemostatic Agent: Neutral Self-Assembling Peptide Hydrogel September 30th, 2014

Announcements

New Absorber Will Lead to Better Biosensor: Biosensors are more sensitive and able to detect smaller changes in the environment October 1st, 2014

Graphene chips are close to significant commercialization October 1st, 2014

Production of Filters for Separation of Water from Petroleum Products in Iran October 1st, 2014

Chemical interactions between silver nanoparticles and thiols: A comparison of mercaptohexanol again September 30th, 2014

Environment

Production of Filters for Separation of Water from Petroleum Products in Iran October 1st, 2014

On the Road to Artificial Photosynthesis: Berkeley Lab Study Reveals Key Catalytic Factors in Carbon Dioxide Reduction September 25th, 2014

World's smallest reference material is big plus for nanotechnology September 25th, 2014

Quick Method Found for Synthesis of Organic Compounds with Less Pollution September 25th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE