Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Modified Cellulose Acetate Nanofilters Applied to Separate Poison from Water

Abstract:
Iranian researchers successfully synthesized and modified the performance of cellulose acetate nanofilter membranes in order to separate nitro-aromatic poisons from water.

Modified Cellulose Acetate Nanofilters Applied to Separate Poison from Water

Tehran, Iran | Posted on September 18th, 2012

Membrane processes, especially nanofiltration, have been used in this research as useful methods due to their advantages such as high performance in water and wastewater purification and the re-use of polluted waters, higher efficiency in separation, ease of operation, lack of the need for chemical compounds, and being cost-effective.

Due to its high hydrophilicity, desirable resistance against solvents, and low cost, cellulose acetate polymer is one the choices of the researchers in order to synthesize nanofilter membranes.

However, the membranes synthesized of this polymer are relatively dense and they have a surface layer with high thickness. It results in noticeable reduction in the passing flux and also in decrease in the overall performance of the nanofilter membrane.

"In this research, cellulose acetate nanofilter membrane was firstly synthesized by using ion separation method. Then, the anionic surfactant of sodium dodecyl sulfate (SDS) was used in order to modify the structure and properties of the membrane. And finally, the two important parameters of flux and percentage of nitro-aromatic poison permeation under various environmental circumstances were studied in order to evaluate the final efficiency of the nanofilters," Dr. Negin Qae'mi, member of the Scientific Board of Chemical Engineering School of Kermanshah University of Technology, stated about the research,
Elaborating on the results of the research, she said, "Significant increase in the porosity as well as a decrease in the thickness of the surface layer of nanofilters was clearly observed in this research.

The mentioned changes in addition to the desirable increase in the hydrophilicity and surface charge of the nanofilters result in the simultaneous increase in the flux passing through the membrane and the permeability of the poisons."

Results of the research have been published on March 30, 2012, in Desalination, vol. 290, pp. 99-106.

####

For more information, please click here

Copyright © Fars News Agency

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

Two-dimensional melting of hard spheres experimentally unravelled after 60 years: First definitive experimental evidence of two-dimensional melting of hard spheres April 21st, 2017

National Conference on Nanomaterials, (NCN-2017) April 21st, 2017

NanoMONITOR shares its latest developments concerning the NanoMONITOR Software and the Monitoring stations April 21st, 2017

Nanomechanics, Inc. Unveils New Product at ICMCTF Show April 25th: Nanoindentation experts will launch the new Gemini that measures the interaction of two objects that are sliding across each other not merely making contact April 21st, 2017

Discoveries

Two-dimensional melting of hard spheres experimentally unravelled after 60 years: First definitive experimental evidence of two-dimensional melting of hard spheres April 21st, 2017

Wood filter removes toxic dye from water April 21st, 2017

Rice crew revved for Nanocar Race: Nanocar creator James Tour and team take on international competition with single-molecule marvel April 20th, 2017

Better living through pressure: Functional nanomaterials made easy April 19th, 2017

Announcements

Two-dimensional melting of hard spheres experimentally unravelled after 60 years: First definitive experimental evidence of two-dimensional melting of hard spheres April 21st, 2017

National Conference on Nanomaterials, (NCN-2017) April 21st, 2017

NanoMONITOR shares its latest developments concerning the NanoMONITOR Software and the Monitoring stations April 21st, 2017

Nanomechanics, Inc. Unveils New Product at ICMCTF Show April 25th: Nanoindentation experts will launch the new Gemini that measures the interaction of two objects that are sliding across each other not merely making contact April 21st, 2017

Water

Wood filter removes toxic dye from water April 21st, 2017

Shedding light on the absorption of light by titanium dioxide April 14th, 2017

Rare-earths become water-repellent only as they age March 22nd, 2017

Nano-level lubricant tuning improves material for electronic devices and surface coatings February 11th, 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