Iron oxide nanoparticle coating on glass substrates for both Arsenic and MS2 virus removal

ENVR 37

Xuan Li, xuanli2@uiuc.edu1, Jinwen Wang, wang6@uiuc.edu1, Leonardo A. Gutierrez, lgutier4@uiuc.edu2, Thanh H. Nguyen, thn@uiuc.edu2, and James Economy, jeconomy@uiuc.edu1. (1) Department of Materials Science & Engineering, University of Illinois at Urbana-Champaign, 1304 W Green Street, Urbana, IL 61801, (2) Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 N Mathews Avenue. Room 4146, Urbana, IL 61801
We have developed a new synthetic approach to achieve iron oxide nanoparticles coated on glass fibers substrates. X-ray diffraction analysis shows that the particles are hematite with no other phases present. TEM indicates that the nanoparticles are spherical and their diameter is between 3-20 nm. HRTEM shows that the particles are as small as 3 nm and consist of single crystals. Because of the fiber form and high surface area of iron oxide nanoparticles, this new system dramatically enhances absorbent capacity over conventional iron oxide. Column tests have shown an extremely high adsorption capacity for arsenic (III/V) to below 1ppb. Similarly, the MS2 virus was indicated to well below the USEPA standards.
 

Advances in Adsorption Processes for Drinking Water Treatment and Sourcewater Protection
1:30 PM-5:10 PM, Sunday, April 6, 2008 Morial Convention Center -- Rm. 236, Oral

Division of Environmental Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008