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- Title
The Structure Feature of Novel Cu<sub>2</sub>O/ e-HTi<sub>2</sub>NbO<sub>7</sub> Nanocomposite and Their Enhanced Photocatalytic Activity.
- Authors
Li, Jie; Xu, Lei; He, Jie; Zhou, Pan; Hu, Lifang; Li, Dewei; Wang, Bin
- Abstract
The novel Cu2O/-HTi2NbO7 heterojunction nanocomposite was assembled through a facile exfoliation-restacking route. The as-prepared nanocomposite and its precursors, Cu2O and -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 -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. The novel Cu2O/ e-HTi2NbO7 nanocomposite was assembled through a facile exfoliation-restacking route. 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 reveal that the Cu2O/ e-HTi2NbO7 nanocomposite exhibits enhanced photocatalytic activity than the Cu2O nanoparticles and HTi2NbO7 nanosheets due to the synergistic effect between the host and the guest materials.
- Subjects
CATALYTIC activity; COPPER compounds; NANOCOMPOSITE materials; X-ray diffraction; CATALYTIC oxidation
- Publication
NANO, 2017, Vol 12, Issue 8, p-1
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292017501004