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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 90 - 99 (10page)
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The novel Cu2O/e-HTi2NbO7 heterojunction nanocomposite was assembled through a facile exfoliation-restacking route. The as-prepared nanocomposite and its precursors, Cu2O and e-HTi2NbO7, were characterized by means of X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), N2 adsorption–desorption measurements, laser Raman spectroscopy (LRS) and UV–Vis diffuse reflection spectroscopy (UV–Vis DRS). The photocatalytic performance was evaluated by photocatalytic oxidation of ethyl mercaptan (EM) and photocatalytic degradation of methylene blue (MB) dyes under sunlight irradiation. The results showed that Cu2O nanoparticles were successfully distributed on the surface of e-HTi2NbO7 nanosheets, and the intensity of spectral absorption of the as-prepared nanocomposite in the visible-light region was significantly enhanced. The as-prepared nanocomposite displayed the enhanced photocatalytic activity than the Cu2O nanoparticles and HTi2NbO7 nanosheets due to the formation of a heterojunction structure between Cu2O nanoparticles and HTi2NbO7 nanosheet and a possible photocatalytic mechanism was suggested.
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