수열합성법을 이용한 전이금속 도핑 TiO(2) 합성 및 광분해 효율 = Synthesis of Metal Ion doped TiO(2) Photocatalyst by Hydrothermal Treatment and Photocatalytic Degradation

다국어 초록 (Multilingual Abstract)

Metal (Ag, Ce, Fe, V, Zr and Zn) doped TiO2 nanoparticles were fabricated by a sol.gel method and an alkali hydrothermal synthesis. The mole ratio of TTIP, IPA, and distilled water were adjusted while the doped TiO2 powders were treated at 170℃-200℃ for 8 hours via the hydrothermal synthesis. The synthesized Metal doped TiO2 nanoparticles were thoroughly characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy in order to determine their morphology, structural and electronic properties. Theas-prepared catalysts were evaluated in the photo decomposition of methylene blue under UV light. The photodegradation efficiency of the doped TiO2 with Fe ions and Ag ions was the best among the samples. And the sharp decrease of the efficiency was identified as the concentration went above a certain level. It was found that the photodegradation efficiency of TiO2 which contained some rutile-type was a little higher than pure anatase-type and the photodegradation efficiency decreased when the ratio of anatase-rutile was 8:2.

참고문헌 (Reference)

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