Pitch 코팅된 TiO2에 대한 광촉매 효과
Photocatalytic effect for the pitch-coated TiO2
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Abstract
Pitch-coated anatase TiO2 typed was prepared by CCl4ratios. Since the carbon layers derived from pitch on the TiO2 particles were porous, the pitch-coated TiO2sample series showed a good adsorptivity and photo decomposition activity. The BET surface area dependson the pitch contents, which was made by changing the mixing ratios of the pitch with the raw TiO2. TheSEM results present to the characterization of porous texture on the pitch-coated TiO2 sample and pitchdistributions on the surfaces for all the materials used. From XRD data, a weak and broad carbon peak of2.The EDX spectra show the presence of C, O and S with strong Ti peaks. Most of these samples are richerin carbon and major Ti metal than any other elements. Finally, the excellent photocatalytic activity of pitch-coated TiO2 with Uv/Vis spectra between absorbance and time could be attributed to the homogeneous coatedpitch on the external surface by CCl4 solvent method.
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