CRCU

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (5): 760-763 .

• Articles • Previous Articles     Next Articles

Hydrothermal Synthesis and Characterization of Perovskite Oxide AgTaO3

HE Li-jie1, ZHANG Dong2, FENG Shou-hua3, ZOU Bo2, CHEN Gang2   

  1. 1. Yingkou University Zone, Yingkou 115000, P. R. China;
    2. State Key Laboratory of Superhard Materials, College of Physics,
    3. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China
  • Received:2011-12-29 Revised:2012-05-05 Online:2012-09-25 Published:2012-09-07
  • Supported by:
    Supported by the Science and Technology Development Planning of Jilin Province, China(Nos.20100116, 201105005), the Specialized Research Fund for the Doctoral Program(SRFDP) of Higher Education of China(No.20100061120089), the Open Project of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry of China (No.2011-01) and the Open Project of State Key Laboratory of Superhard Materials of China(No.2011-04).

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Abstract: The perovskite-type AgTaO3 crystals were prepared by mild hydrothermal method and determined by powder X-ray diffraction. Rietveld refinement indicates that AgTaO3 crystallized in an orthorhombic system with the space group Pcmn. The lattice parameters are a=5.5822(1) nm, b=7.8522(2) nm and c=5.5347(1) nm, with α=β=γ= 90.0o. The compound was characterized by scanning electron microscopy(SEM), X-ray photoelectron spectroscopy (XPS), high resolution transmission electron microscopy(HR-TEM) and UV-Vis diffuse reflectance spectrometry (UV-Vis DRS). The photocatalytic activity of AgTaO3 powder was evaluated by the degradation of Congo red under UV-light irradiation. The result shows that the titled compound has a high photocatalytic activity at room temperature and potential application in photocatalysis.

Key words: Hydrothermal synthesis, Perovskite structure, Photocatalytic activity