Graduation Year

2005

Document Type

Thesis

Degree

M.S.E.E.

Degree Granting Department

Electrical Engineering

Major Professor

Elias K. Stefanakos Ph.D.

Keywords

Photocatalytic oxidation, Nanoparticles, Phenol degradation, Sol-gel, Hydrolysis, Coprecipitate

Abstract

Environmental pollution on a global scale is expected to be the greatest problem that chemical scientists will face in the 21st century, and an increasing number of these scientists are looking to new photocatalytic systems for the solution. Existing photocatalytic systems are effective for the decomposition of many unwanted organics through the use of efficient semiconductor photocatalysts activated by ultra-violet (UV) irradiation. The demand for visible light activated photocatalytic systems is increasing rapidly. Currently, however, the efficiency and availability of photocatalysts which can be activated effectively by the solar spectrum and especially indoor lighting is severely limited. The purpose of this project is to investigate the potential of a TiO2-ZnFe2O4 alloyed nanocomposite for use as a visible light activated photocatalyst. An overview of the principles of photocatalysis is first provided.

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