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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 23, Number 3
BKCSDE 23(3)
March 20, 2002

Title	A New Nanohybrid Photocatalyst between Anatase (TiO₂) and Layered Titanate
Author	Hyun-Cheol Lee, Hyun Jung, Jae-Min Oh, Jin-Ho Choy
Keywords	TiO2-pillared titanate, Anatase, Photocatalyst, Porous materials.
Abstract	A new microporous TiO₂-pillared layered titanate has been successfully prepared by hybridizing the exfoliated titanate with the anatase TiO₂ nano-sol. According to the X-ray diffraction analysis and N₂ adsorption-desorption isotherms, the TiO₂-pillared layered titanate showed a pillar height of ~2 nm with a high surface area of ~460 m ² /g and a pore size of ~0.95 nm, indicating that a microporous pillar structure is formed. Its photocatalytic activity was evaluated by measuring the photodegradation rate of 4-chlorophenol during irradiation of catalyst suspensions in an aqueous solution. An enhancement in activity of ca. 170% was obtained for TiO₂-pillared layered titanate compared to that of the pristine compound such as layered cesium titanate.
Page	477 - 480
Full Text	PDF

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