Philip J. Carlson, Lori A. Pretzer, and Joel E. Boyd. Wayland Baptist University, Plainview, TX
Titanium (IV) oxide was utilized for the photocatalytic degradation of nitrate from aqueous solution. The titania was adhered to an acrylic support material via solvent deposition. A simple reactor was built for use with external illumination, in which the light was coupled through the acrylic support material directly to the titania. The photocatalytic properties of titania were enhanced by the photodeposition of palladium metal. The optimum metal loading content for the removal of nitrates was probed as well as the effectiveness of bimetallic palladium-copper loaded titania. The photoactivity of the palladium loaded titania provided a sufficient environment for the removal of nitrates in acidic medium. The removal of nitrates under a neutral pH was also investigated.