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Comparison of Titanium Dioxides Prepared from Different Materials and its Photocatalytic Evaluation

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Abstract:

Titanium dioxides were synthesized from two different titanium salts, which contained chlorine and sulfur respectively. Titanium dioxide prepared from TiCi4 and had a particle size of ca. 20nm and its phase transition from anatase to rutile stated at 500°C. Titanium dioxide from TiOSO4 had a particle size of ca. 50nm and retained its anatase and sperit structure until 700°C by calcination. For the photocatalytic evaluation of these titanium dioxides, photocatlytic oxidation of organic model pollutant, humic acid, have been conducted. UV absorbance decrease by titanium dioxides prepared from both from TiCi4 and TiOSO4 at room temperature showed very similar results, compared to titanium dioxide prepared from TiCi4 at higher temperature.

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Periodical:

Advanced Materials Research (Volume 749)

Pages:

77-81

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.749.77

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Online since:

August 2013

Authors:

Dong Seok Rhee, Young Do Kim, Se Gu Son

Keywords:

Photocatalyst, TiCl4, TiOSO4, Titanium Dioxide (TiO2), UV/TiO2

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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