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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.12
- 수록면
- 1,213 - 1,222 (10page)
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In the current study, a Cu₂O/TiO₂ photoinduced nanocomposite materials prepared by ultrasonification method was evaluated the photocatalytic oxidation efficiency of volatile organic compounds (BTEX) under visible-light irradiation. The results of XRD confirmed the successful preparation of photoinduced nanocomposite materials. However, diffraction peaks belonging to TiO₂ were not confirmed for the Cu₂O/TiO₂. The possible reason for the absence of Cu₂O peak is their low content and small particle size. The result of uv-vis spectra exhibited that the fabricated Cu₂O/TiO₂ can be activated under visible light irradiation. The FE-SEM/EDS and TEM showed the formation of synthesized nanocomposites and componential analysis in the undoped TiO₂ and Cu₂O/TiO₂. The photocatalytic oxidation efficiencies of benzene, toluene, ethylbenzene, and o-xylene with Cu₂O/TiO₂ were higher than undoped TiO₂. According to light sources, the average oxidation efficiencies for BTEX by Cu₂OT-0.5 were exhibited in the orer of 8 W day light > violet LEDs > white LEDs. However, the photocatalytic oxidation efficiencies normalized to supplied electric power were calculated to be in the following order of violet LEDs > white LEDs > 8 W day light, indicating that the LEDs could be a much more energy efficient light source for the photo-oxidation of gaseous BTEX using Cu₂O/TiO₂.
목차
Abstract
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
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