CHED 858 |
| Matthew Farmer, Lanhua Hu, Tias Paul, Zuli Guilarte, Alicia Gehlhausen, Matthew Hurst, Timothy J. Strathmann, and Penney L. Miller. |
| Modified titanium dioxide (TiO2) materials were synthesized in an attempt to improve the photocatalytic efficiency and cost effectiveness for application in water treatment processes. Nitrogen doping of titanium dioxide (TiON) extends the absorption band of the photocatalyst into the visible region which may render it a visible-light activated catalyst. Nitrogen doped materials were synthesized via published sol gel methods using various nitrogen doping agents. Ammonia and phenyl hydrazine proved to be the best N-doping agents and resulted in the formation of pale yellow TiON solids that were stable during calcining. Enhancement of the photocatalyst surface area has been attempted by embedding TiO2 and TiON crystals into mesoporous silicates. The final products of these procedures were characterized using a number of techniques (e.g. XRD, DRIFTS, etc) and tested for their stability (permanence of color) and ability to promote the degradation of select aquatic pollutants. |
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Undergraduate Research Poster Session: Environmental Chemistry
2:00 PM-4:00 PM, Monday, 27 March 2006 Georgia World Congress Center -- Ex. Hall B4, Poster
Division of Chemical Education |