Citation: DONG Wei-Xia, BAO Qi-Fu, GU Xing-Yong, PENG Gang, ZHAO Xue-Guo. C₃N₄/CaTi₂O₅ Composite:Synthesis and Photocatalytic Properties[J]. Chinese Journal of Inorganic Chemistry, ;2017, 33(2): 292-298. doi: 10.11862/CJIC.2017.037 shu

C₃N₄/CaTi₂O₅ Composite:Synthesis and Photocatalytic Properties

School of Materials Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, Jiangxi 333403, China

Corresponding author: DONG Wei-Xia, weixia_dong@sina.com
Received Date: 25 August 2016
Revised Date: 5 December 2016

Figures(8)

C₃N₄/CaTi₂O₅ composite was prepared by a solid reaction method. The microstructure and surface area of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM)and the corresponding energy dispersive analysis (EDS), and N₂ adsorption-desorption. The absorption properties of the samples were analyzed by ultraviolet-visible absorption spectrophotometer (UV-Vis). Effects of n_C₃N₄/n_CaTi₂O₅ on phase and microstructure of the samples were studied. The photocatalytic degradation activity of C₃N₄/CaTi₂O₅ composite for rhodamine B (RhB)were examined under visible light irradiation. The experimental results showed that the composites exhibited higher photocatalytic activity than pure C₃N₄ or CaTi₂O₅. The photocatalytic activity of the composites increased then decreased with increasing C₃N₄/CaTi₂O₅ content, and the composite with n_C₃N₄/n_CaTi₂O₅ of 1 exhibited the highest photocatalytic activity of 99.5%. The enhanced photocatalytic activity of the C₃N₄/CaTi₂O₅ photocatalyst was attributed predominantly to the efficient separation of photo induced electrons and holes. After 5 cycles of degradation, the C₃N₄/CaTi₂O₅ photocatalyst kept almost unchanged, which indicated excellent stability and reusability.
- C₃N₄(graphite-like carbon nitride),
- CaTi₂O₅,
- C₃N₄/CaTi₂O₅ composites,
- photocatalytic properties
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C₃N₄/CaTi₂O₅ Composite:Synthesis and Photocatalytic Properties