Year

2021

Degree Name

Doctor of Philosophy

Department

Institute for Superconducting & Electronic Materials (ISEM)

Abstract

This thesis presents a combined strategy to prepare photocatalysts, that merges the design, modification, and characterization of semiconductor materials. A photocatalyst is defined as a substance that can be activated by absorbing a photon because this material is able to accelerate a reaction without being consumed by it. This thesis focusses on the degradation of Rhodamine B, as a model organic compound, representative of organic pollutant found in the environment A catalyst works in the presence of light through light absorption and excitation across the bandgap inside the semiconductors.

This thesis introduces a design strategy to improve the catalyst structure and chemistry, first by using a template approach with a high surface area, such as metal-organic frameworks and using high-temperature treatments in conjunction with a reducing gas flow (typically 5% hydrogen gas and 95% argon as inert carrier gas) to increase the harvesting the light by partially reducing the oxide.

FoR codes (2008)

020502 Lasers and Quantum Electronics

This thesis is unavailable until Thursday, January 19, 2023

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Unless otherwise indicated, the views expressed in this thesis are those of the author and do not necessarily represent the views of the University of Wollongong.