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Abstract
Titanium Dioxide is used to coat plastic for its self cleaning properties. The main reason is to cut down cleaning cost in hospitals as well as reducing chemical generated during the cleaning process, or energy loss due to the use of autoclaves. The study also focuses on using low cost processes to encourage its application in industry, especially polymer industries.
Polypropylene samples are coated with titanium dioxide thin film using sol-gel technique. Some of the precursor solutions are exposed to 300 nm UV light prior to coating, and some of the coated samples are also exposed to 300 nm UV light after coating as variations. Raman is used to determine the composition of the coated sample prior to a microbiological experiment done afterwards using E. Coli to determine the photocatalytical prowess of the film.