Applications of photo-active thin film semiconductors in environmental remediation.

摘要

This dissertation presents an overview of the current theoretical and experimental understanding of the photophysical, photochemical, and photoelectrochemical behavior of photoactive thin film materials and a survey of their current application as well as the results of several experimental studies of photo-active semiconductor thin film materials in environmentally relevant applications: oxidation of ammonia to nitrogen gas by photoelectrocatalysis, the oxidation of low concentration volatile organic compounds from indoor air, and an inorganic photocatalytic curing compound for use on concrete. Finally, there is a section devoted to detection of gas phase organic contaminants by chemical ionization mass spectrometry, including a brief description of the instrument employed for a portion of this research.