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Testing The Photocatalytic Oxidation Abilities Of Titania-Silica Aerogels Fabricated Using The Rapid Supercritical Extraction Method, Lauren B. Brown
Testing The Photocatalytic Oxidation Abilities Of Titania-Silica Aerogels Fabricated Using The Rapid Supercritical Extraction Method, Lauren B. Brown
Honors Theses
Indoor air has been shown to be four to five times more polluted than outdoor air. Titania-silica aerogels can photocatalytically oxidize volatile organic compounds found in indoor air. Aerogels are the lightest known solid with 90-99% air by volume. Titania-silica aerogels were fabricated in seven to nine hours using the Rapid Supercritical Extraction method and properties compared well to those published in the literature. Bulk density ranges between 0.025 and 0.04 g/cm3. Skeletal density ranges between 1.75 and 2.75g/cm3. BET surface area ranges between 200 and 700 m2/g. BJH pore distribution showed distinct differences between silica and titania aerogels. FTIR …