Citation: GU Yong-Qin, WANG Bo, GU Xiu-Quan, ZHAO Yu-Long, QIANG Ying-Huai, ZHANG Shuang, ZHU Lei. Preparation and Characterization of Co₃(PO₄)₂/Ag₃PO₄ Nanocomposites for Visible-Light Photocatalysis[J]. Acta Physico-Chimica Sinica, ;2014, 30(10): 1909-1915. doi: 10.3866/PKU.WHXB201408046 shu

Preparation and Characterization of Co₃(PO₄)₂/Ag₃PO₄ Nanocomposites for Visible-Light Photocatalysis

1.
School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu Province, P. R. China

Received Date: 5 June 2014
Available Online: 4 August 2014
Fund Project:

In this study, Ag₃PO₄ nanoparticles (NPs), cobalt phosphate (Co₃(PO₄)₂, CoP) nanosheets (NSs), and their composites (CoP/Ag₃PO₄) were synthesized via a facile chemical precipitation method. Their visiblelight photocatalytic activities were compared and investigated. The structural, morphological, optical, and visiblelight photocatalytic properties of the prepared samples were characterized by X-ray diffraction (XRD), fieldemission scanning electron microscopy (FESEM), ultraviolet- visible (UV- Vis) diffuse absorbance and photoluminescence (PL) spectroscopies. We found that both the degradation rate and cyclical stability of the CoP/Ag₃PO₄ hybrids increased significantly under visible-light irradiation when methyl orange (MO) was used as the target with reference to single-phase Ag₃PO₄ NPs or CoP NSs. This suggests that CoP might play a cocatalyst role, which suppresses carrier recombination and provides a large number of photogenerated holes. Additionally, we also observed that the CoP/Ag₃PO₄ hybrids hardly degraded Rhodamine B (RhB), a cationic dye. This behavior might be attributed to the lower amount of dye molecule absorption because of a change in surface polarity. We thus present a new approach for the development of low-cost and visible-light responsive photocatalysts.
- Ag₃PO₄,
- Co₃(PO₄)₂,
- Visible-light photocatalysis,
- Methyl orange,
- Rhodamine B
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and Characterization of Co3(PO4)2/Ag3PO4 Nanocomposites for Visible-Light Photocatalysis

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通讯作者: 陈斌, bchen63@163.com

Preparation and Characterization of Co₃(PO₄)₂/Ag₃PO₄ Nanocomposites for Visible-Light Photocatalysis