Nanotechnology Now

Our NanoNews Digest Sponsors





Heifer International

Wikipedia Affiliate Button


android tablet pc

Home > Press > Fabrication of New Alumina Adsorbent to Remove Formaldehyde from Water

Abstract:
Iranian researchers succeeded in the production of a new type of nano-adsorbent which is capable of removing formaldehyde from water resources.

Fabrication of New Alumina Adsorbent to Remove Formaldehyde from Water

Tehran, Iran | Posted on June 20th, 2012

The importance of the study is that it was a challenge before to identify this carcinogenic compound (formaldehyde) in the environmental sources. Being known as a very applicable compound and despite its high toxicity and carcinogenic properties, over 10 million tons of formaldehyde is annually produced all over the world.

Taking into account the need for the production of materials able to eliminate formaldehyde, researchers studied the effective parameters on the reactivity of alumina nanoparticles. They carried out the project successfully by grafting 2,4-dinitrophenylhydrazine on alumina nanoparticles. They placed the synthesized sample and the alumina sample without grafting at a polluted environment with determined concentrations of formaldehyde, and they compared the amount of formaldehyde adsorption by the samples.

Observations showed that the presence of alumina nanoparticles in the polluted environment did not change the concentration of formaldehyde. In order to improve the reactivity of alumina nanoparticles, the researchers grafted 2,4-dinitrophenylhydrazine reactant to alumina nanoparticles, and they reported their observations. Results showed that the grafting process resulted in the adsorption of formaldehyde from the polluted environment up to 99%.

In addition, the effect of various parameters such as pH and the contact time between the polluted environment and the grafted alumina nanoparticles were also studied in this research. Results showed that high values of pH helped the decomposition of formaldehyde, which resulted in a decrease in the concentration of formaldehyde. However, this fact reduced the adsorption efficiency, and it caused interference in the adsorption process. They reported that a pH value of 7 was the most optimum pH value in order to obtain high efficiency.

Another result obtained from the research was that the presence of high concentrations of various ions, including calcium and sodium, did not significantly affect the adsorption capacity of the grafted alumina nanoparticles.

####

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

HP Supercomputer at NREL Garners Top Honor October 19th, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Discoveries

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Plastic nanoparticles also harm freshwater organisms October 18th, 2014

Superconducting circuits, simplified: New circuit design could unlock the power of experimental superconducting computer chips October 18th, 2014

Nanotechnology Improves Quality of Anti-Corrosive Coatings October 17th, 2014

Announcements

HP Supercomputer at NREL Garners Top Honor October 19th, 2014

First Canada Excellence Research Chair gets $10 million from the federal government for oilsands research at the University of Calgary: Federal government announces prestigious research chair to study improving oil production efficiency October 19th, 2014

Ucore's McKenzie to Deliver Presentation to Rare Earths Conference in Singapore as Highlight of Fall 2014 Marketplace Schedule October 19th, 2014

Non-Toxic Nanocatalysts Open New Window for Significant Decrease in Reaction Process October 19th, 2014

Environment

Plastic nanoparticles also harm freshwater organisms October 18th, 2014

New Nanocomposites Help Elimination of Toxic Dyes October 15th, 2014

DNA nano-foundries cast custom-shaped metal nanoparticles: DNA's programmable assembly is leveraged to form precise 3D nanomaterials for disease detection, environmental testing, electronics and beyond October 10th, 2014

Human health, wealth require expanded marine science, experts say: In Rome, European experts publish a 'common vision' of priorities for marine research and action through 2020 October 9th, 2014

Water

New Nanocomposites Help Elimination of Toxic Dyes October 15th, 2014

Fast, cheap nanomanufacturing: Arrays of tiny conical tips that eject ionized materials could fabricate nanoscale devices cheaply October 4th, 2014

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

Malvern Instruments & Aurora Water conference presentation illustrates value and cost-saving potential of on-line zeta potential in water treatment: 2014 RMSAWWA/RMWEA Joint Annual Conference, Albuquerque, New Mexico, USA September 7th 10th September 3rd, 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