Graduation Year
2014
Document Type
Dissertation
Degree
Ph.D.
Degree Granting Department
Physics
Major Professor
Matthias Batzill, Ph.D.
Committee Member
Casey Miller, Ph.D.
Committee Member
Myung Kim, PhD.
Committee Member
Hariharan Srikanth, Ph.D.
Committee Member
Rudy Schlaf, Ph.D.
Keywords
charge carrier diffusion, epitaxial films, grazing incidence ion sputter, methyl orange
Abstract
This dissertation is related to the understanding of catalytic reactions of metal oxides. For several decades, the surfaces and bulk of materials have been probed to determine additional properties that relate to photocatalytic applications. This investigation furthers these efforts by the (a) modification of a metal oxide surface to isolate known influences of chemical properties and (b) proposing and utilizing a novel methodology for attribution of photocatalytic activity to a discernable influence. For the first effort, by effectively utilizing a known technique for a new application on a metal oxide, such isolations can be made despite unfavorable states. For the second effort, a reduction in the influence of surface states for metal oxides is effectively performed, providing the isolation of influences originating from the bulk. The challenge with such a proposal is verifying such bulk states have been adequately isolated as external influences would obviously distort any conclusions. Thus, techniques to both create such bulk states and eliminate unwanted combinations thereof are additionally required and must be provided for. Lastly, a determination of the photocatalytic activity is made to these states and results are provided.
Scholar Commons Citation
Luttrell, Timothy, "Photocatalysis and Grazing-Ion Beam Surface Modifications of Planar TiO2 Model Systems" (2014). USF Tampa Graduate Theses and Dissertations.
https://digitalcommons.usf.edu/etd/5064
