Nanoparticles by Sol-Gel
This research involves synthesis of nanoparticles be sol-gel technique. One of the material of interest is TiO2. TiO2 is a very effective material for photocatalysis due to its stability, self-regenerating properties and cost. Its bandgap also covers the H2O/?OH redox potential (-2.8 V), thus promoting the breakdown of many organic compounds. Unfortunately, the bandgap of TiO2, (3.2eV) lies in the UV range allowing only a very small fraction of the incoming light to be used for activation. To increase its efficiency, TiO2 nanoparticles can be doped with metals such as Nd, Cr, Pd or Fe. The ultimate goal of this project is to find the optimal combination of dopant and preparation conditions to achieve maximum photocatalytic efficiency.
"Sol-Gel Syntheses and Characterization of Neodymium-Ion Doped Nanostructured Titania Thin Films" A. Burns, W. Li, C. Baker and S.I. Shah Mater. Res. Soc. Sym. Proc. Vol. 703, 2002.
"Neodymium Ion Dopant Effects on Phase Transformation in Sol-Gel Derived Titania" A. Burns, G. Hayes, W. Li, J. Hirvonen, J. Derek Demaree, S. Ismat Shah Mater. Sci. Eng. B (2003 submitted)