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NH4V3O7: Synthesis, morphology, and optical properties

  • Physical Methods of Investigation
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Abstract

The effect of the method used for the synthesis of NH4V3O7 on its morphology, textural parameters, and optical properties was studied. Ammonium vanadate NH4V3O7 was prepared by treating NH4VO3 in the presence of citric acid under hydrothermal (4.0 ≤ pH ≤ 5.5, T = 180–200°C, 48 h) and microwave–hydrothermal (3.5 ≤ pH ≤ 5.0, T = 180–220°C, 20 min) conditions. Self-assembled NH4V3O7 microcrystals crystallizing in monoclinic system with unit cell parameters a = 12.247(5) Å, b = 3.4233(1) Å, c = 13.899(4) Å, β = 89.72(3)°, and V = 582.3(4) Å3 (space group P21) were shown to be formed independently of the method used to treat the reaction mixture. The morphology of NH4V3O7 particles was shown to depend on рН of the reaction mass and the method of synthesis. The structural features of NH4V3O7 were studied by IR, UV, and Vis spectroscopy, and the optical bandgap was determined.

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Authors and Affiliations

  1. Institute of Solid State Chemistry, Ural Branch, Russian Academy of Sciences, ul. Pervomaiskaya 91, Yekaterinburg, 620990, Russia

    G. S. Zakharova, I. V. Baklanova & A. Yu. Suntsov

  2. Kirchhoff-Institut für Physik, Universität Heidelberg, Im Neuenheimer Feld 226, Heidelberg, DE-69120, Deutschland

    G. S. Zakharova

  3. Institute of Material Science and Engineering, Wuhan University of Technology, Luoshi Road 205, Wuhan, 430070, China

    Y. Liu, Q. Zhu & W. Chen

Authors
  1. G. S. Zakharova
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  2. I. V. Baklanova
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  3. A. Yu. Suntsov
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  4. Y. Liu
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  5. Q. Zhu
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  6. W. Chen
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Corresponding author

Correspondence to G. S. Zakharova.

Additional information

Original Russian Text © G.S. Zakharova, I.V. Baklanova, A.Yu. Suntsov, Y. Liu, Q. Zhu, W. Chen, 2016, published in Zhurnal Neorganicheskoi Khimii, 2016, Vol. 61, No. 12, pp. 1646–1652.

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Zakharova, G.S., Baklanova, I.V., Suntsov, A.Y. et al. NH4V3O7: Synthesis, morphology, and optical properties. Russ. J. Inorg. Chem. 61, 1584–1590 (2016). https://doi.org/10.1134/S0036023616120214

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  • DOI: https://doi.org/10.1134/S0036023616120214

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