AVS 54th International Symposium | |
Advanced Surface Engineering | Tuesday Sessions |
Session SE-TuP |
Session: | Advanced Surface Engineering Poster Session |
Presenter: | M.H. Wu, National Dong Hwa University, Taiwan |
Authors: | M.H. Wu, National Dong Hwa University, Taiwan M.S. Wong, National Dong Hwa University, Taiwan |
Correspondent: | Click to Email |
Titanium dioxide with anatase phase couples with different materials contributing better or worse photocatalysis. Transferring of electrons and holes in junction is caused by the different energy levels of conduction band and valence band. Dense and porous bilayers of cuprous oxide and titanium dioxide with various microstructures and thickness were prepared by magnetron sputtering and electron beam evaporation with glancing-angle deposition technique. The photocatalysis of the films was tested via photo-degradation of methylene blue. Porous columnar titania films covered with Cu2O layer allow good carrier transfer and high specific surface area, where the photo-generated electrons and holes can be separated and function at different area of the columnar structure, resulting better photocatalytic performance.