2008 NSTI Nanotechnology Conference and Trade Show - Nanotech 2008 - 11th Annual

Partnering Events:

TechConnect Summit
Clean Technology 2008

Environmental Applications of Nanocrystalline Metal Oxides

O.B. Koper, A. Iseli, H. Kwen, S. Rajagopalan, S. Winecki
NanoScale Corporation, US

Keywords:
nanocrystalline, metal oxide, environmental, odor

Abstract:
Nanocrystalline metal oxide aggregates (NanoActive® materials) possess very large surface areas, defect-rich morphology, large porosities, and small crystallite sizes. This combination of properties results in extremely high reactivity including both enhanced reaction kinetics and large capacities providing utility in both consumer and military applications. Of particular importance is the adsorption followed by neutralization of various toxic and odorous compounds, air and water filtration, as well as removal of heavy metals and sulfur species. In addition, novel metal oxide formulations with the unique ability to neutralize toxic chemicals, as well as biological organisms were developed. Several of the oxides have been shown to possess considerable biocidal activity against the opportunistic pathogens Staphylococcus aureus and Pseudomonas aeruginosa with applications in antimicrobial paints and coatings. Consumer products based on these materials include chemical spill control systems and odor neutralization systems. NanoActive materials are economically produced on a large scale and their safe use has been proven by independent toxicology testing. For example, NanoActive TiO2, was found to be non-toxic in acute oral, acute dermal, and acute inhalation testing, not an irritant to skin and eyes, and not a skin sensitizer.


Nanotech 2008 Conference Program Abstract