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http://dx.doi.org/10.5012/bkcs.2002.23.3.477

A New Nanohybrid Photocatalyst between Anatase (TiO2) and Layered Titanate  

Lee, Hyun-Cheol
Jeong, Hyun
Oh, Jae-Min
Choy, Jin-Ho
Publication Information
Bulletin of the Korean Chemical Society / v.23, no.3, 2002 , pp. 477-480 More about this Journal
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 m2/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.
Keywords
$TiO_2$-pillared titanate; Anatase; Photocatalyst; Porous materials;
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