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Photocatalytic study of polymorphic titania synthesized by ambient condition sol process
Authors:Christopher A Nolph  Daniel E Sievers  Sujaree Kaewgun  Courtney J Kucera  Daniel H McKinney  John P Rientjes  Jamie L White  Radhika Bhave  Burtrand I Lee
Affiliation:(1) School of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA
Abstract:Nanocrystalline titania of different phases were produced by ambient condition sol process with phase control originating from alterations in experimental variables. The produced titania photocatalysts were characterized by use of x-ray diffraction, BET surface area, transmission electron microscopy and related to methyl orange degradation. The results showed that the photocatalytic activity of brookite and anatase phase titania samples to be greater than that of Degussa P-25 and rutile phase titania sample. In addition, brookite, due to surface area considerations, appears to be the most photocatalytically active phase of titania.
Keywords:titania  phase Comparison  photocatalysis  methyl Orange
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