열처리 온도에 따라 제조된 탄소 코팅된 TiO2에 대한 광촉매 효과
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Abstract
Carbon-coated TiO2 was prepared by CCl4 solvent mixing method with different heat treatmenttemperature (HTT). Since the carbon layers derived from pitch on the TiO2 particles were porous, the carbon-coated TiO2 sample series showed a good adsorptivity and photo decomposition activity. The BET surface areawas decreased by the increasing of the heat treatment temperature. The SEM results present to the characterizationof surface texture on the carbon-coated TiO2used. The main elements of C, O and Ti were shown from EDX spectra. And the quantity of these elementsis very rich in the samples. From XRD data, the pristine anatase peaks were observed in the X-ray diffractionpatterns for the carbon-coated TiO2 at the diferent HTs. However, the rutile peaks were observed for the carbon-coated TiO2 at HTT of 1073 K and 123 K. Finally, the excellent photocatalytic activity of carbon-coated TiO2. Corresponding authorPhone : +82-(0)41-660-1337 Fax : +82-(0)41-688-3352E-mail: wc_oh@hanseo.ac.kr
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