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Citation: ZHOU Bo, LIU Zhi-Guo, WANG Hong-Xia, HUANG Xi-Qiang, SUI Yu, WANG Xian-Jie, LV Zhe, SU Wen-Hui. Hydrothermal Preparation and Visible Photocatalytic Activity of Flower-Like Cu₂O/Cu Nanocomposites[J]. Acta Physico-Chimica Sinica, ;2009, 25(09): 1841-1846. doi: 10.3866/PKU.WHXB20090904 shu

Hydrothermal Preparation and Visible Photocatalytic Activity of Flower-Like Cu₂O/Cu Nanocomposites

1.
Center for Condensed Matter Science and Technology, Department of Physics, Harbin Institute of Technology, Harbin 150080, P. R. China

Received Date: 21 April 2009
Available Online: 7 July 2009

Novel Cu2O/Cu nanocomposites with a flower-like nanoarchitecture were prepared by a facile template-free two-step hydrothermal synthesis route using Cu(NO3)2·3H2O as a precursor. Their properties were characterized by X-ray diffraction (XRD), UV-Vis diffuse reflection spectroscopy (DRS), and scanning electron microscopy (SEM). The flower-like Cu2O/Cu nanocomposites consist of many nanopetals with lengths of 300-500 nm and widths of 30-70 nm. They show strong absorption for visible light. The content of Cu in the composites could be easily controlled by adjusting the hydrothermal time. As photocatalysts, the composites exhibit much higher photocatalytic activity than Cu2O for the photodegradation of Procion Red MX-5B (PR) under visible light illumination when the mass fraction of Cu lies between 27% and 71%. Moreover, flower-like Cu2O/Cu nanocomposites show better performance for the photodegradation of PR than cubic composites. The synthesized composites can also be recycled for further use.
- Photocatalysis,
- Cu2O/Cu,
- Heterostructure,
- Nanoflower,
- Procion Red MX-5B
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沈阳化工大学材料科学与工程学院沈阳 110142

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Hydrothermal Preparation and Visible Photocatalytic Activity of Flower-Like Cu2O/Cu Nanocomposites

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通讯作者: 陈斌, bchen63@163.com

Hydrothermal Preparation and Visible Photocatalytic Activity of Flower-Like Cu₂O/Cu Nanocomposites