Nano Archive

Extraction of chlorpyrifos and malathion from water by metal nanoparticles.

Nair , A. S and Pradeep , T. (2007) Extraction of chlorpyrifos and malathion from water by metal nanoparticles. J Nanosci Nanotechnol., 7 (6). pp. 1871-1877.

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Official URL: http://www.ncbi.nlm.nih.gov/pubmed/17654957

Abstract

The nanoparticles of gold and silver in solution state and supported over activated alumina are effective systems for the quantitative removal of chlorpyrifos and malathion, two common pesticides found in surface waters of developing nations, from water. In the solution phase, these pesticides adsorb onto the nanoparticles' surfaces and upon interaction for a long time, the nanoparticles with adsorbed pesticides precipitate. In contrast, complete removal of these pesticides occurs when contaminated water is passed over nanoparticles supported on alumina. A prototype of an on-line filter was made using a column of activated alumina powder loaded with silver nanoparticles and the device was used for pesticide removal for extended periods. We believe that the method has great technological potential in drinking water purification, especially using silver nanoparticles.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:5836
Deposited By:JNCASR
Deposited On:11 Aug 2009 07:20
Last Modified:11 Aug 2009 07:20

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