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http://dx.doi.org/10.4191/KCERS.2008.45.3.150

Properties and Photocatalytic Activity of Pitch-binded ACF/TiO2Composites  

Oh, Won-Chun (Department of Advanced Materials & Science Engineering, Hanseo University)
Jung, Ah-Reum (Department of Advanced Materials & Science Engineering, Hanseo University)
Publication Information
Journal of the Korean Ceramic Society / v.45, no.3, 2008 , pp. 150-156 More about this Journal
Abstract
Pitch-binded activated carbon fiber(ACF)/$TiO_2$ composite photocatalysts were prepared by Carbon Tetra Chloride (CTC) solvent mixing method with different mixing ratios of anatase to ACF. The result of the textural surface properties demonstrated that there is a slight increase in the Brunauer, Emmett and Teller (BET) surface area of composites with an increase of the amount of ACF. The surfaces structure morphologies of the composites were observed using an Scanning Electron Microscope (SEM). In the XRD patterns for all ACF/$TiO_2$ composites, the diffraction peaks showed the formation of anatase crystallites. The EDX spectra showed the presence of C, O and Si with strong Ti peaks. Most of these samples were richer in carbon and major Ti metal than any other elements. From the photo-decomposition results, the excellent activity of the ACF/$TiO_2$ composites between c/$c_0$ for methylene blue and UV irradiation time could be attributed to both the effects of the photocatalysis of the supported $TiO_2$ and adsorptivity of activated carbon fiber and another carbon derived from pitch.
Keywords
Activated carbon fiber; Anatase; BET surface area; SEM; XRD; EDX; Photocatalysis;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 3
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