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Photocatalytic properties of rutile TiO2 acicular particles in aqueous 4-chlorophenol solution

Published online by Cambridge University Press:  31 January 2011

Sun-Jae Kim ,
Jong-Kuk Lee ,
Eun Gu Lee ,
Hee-Gyoun Lee ,
Seon-Jin Kim  and
Kyoung Sub Lee
Sun-Jae Kim
Affiliation:
Sejong Advanced Institute of Nano Technologies, Sejong University, Seoul 143–747, Korea
Jong-Kuk Lee
Affiliation:
Department of Materials Engineering, Chosun University, KwangJu 501–759, Korea
Eun Gu Lee
Affiliation:
Department of Materials Engineering, Chosun University, KwangJu 501–759, Korea
Hee-Gyoun Lee
Affiliation:
IGC-SuperPower, 450 Duane Avenue, Schenectady, New York 12304
Seon-Jin Kim
Affiliation:
Division of Materials Science and Engineering, Hanyang University, Seoul 133–791, Korea
Kyoung Sub Lee
Affiliation:
Division of Materials Science and Engineering, Hanyang University, Seoul 133–791, Korea
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Abstract

The photocatalytic properties of TiO2 rutile powder with acicular primary particles were characterized using the photocatalytic reaction in aqueous 4-chlorophenol (4CP) solution and compared to those of TiO2 anatase with almost the same surface area of approximately 200 m2g. The characteristics of commercial P-25 TiO2 powders with the surface area of approximately 55 m2/g were also compared to rutile and anatase powders. The rutile phase powders surpassed both anatase and P-25 ones in decomposition rate for 4CP. The excellent photo-oxidative ability of the powder was dependent on the specific powder-preparation method, which led to a direct crystallization in aqueous solution, regardless of the crystalline structures of the powders.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 3 , March 2003 , pp. 729 - 732
Copyright
Copyright © Materials Research Society 2003

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References

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