Crystallography Reports

, Volume 63, Issue 2, pp 250–253 | Cite as

Conditions for Titania(IV) Recrystallization from the η Modification to Anatase

  • L. N. Obolenskaya
  • E. V. Savinkina
  • G. M. Kuzmicheva
Nanomaterials and Ceramics

Abstract

The effect of some sensitizers (methylene blue, methyl red, chlorophylls, coproporphyrin I, and hydrogen peroxide) on the transformation of η-TiO2, which is an anatase precursor in titanyl sulfate hydrolysis, into anatase has been studied. A decrease in the average crystallite size and suppression of the transformation of η-TiO2 into anatase is observed in the presence of methylene blue and methyl red organic dyes, as well as Ti(IV) peroxocomplexes,. The sample synthesized in the presence of 1 M H2O2 is characterized by the smallest crystallite sizes (2−4 nm) and the highest photocatalytic activity.

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References

  1. 1.
    P. Chowdhury, H. Gomaa, and A. K. Ray, Dye-Sensitized Photocatalyst: A Breakthrough in Green Energy and Environmental Detoxification (ACS Symposium Series, Washington, 2013), Ch. 13, p.231.Google Scholar
  2. 2.
    C. H. Lee, J. L. Shie, C. Y. Tsai, et al., J. Clean Energy Technol. 1 (2), 115 (2013).CrossRefGoogle Scholar
  3. 3.
    E. Vargas, R. Vargas, and O. Núñez, Appl. Catal. B 156-157, 8 (2014).CrossRefGoogle Scholar
  4. 4.
    V. Faraon, R. I. Bunghez, S. F. Pop, et al., J. Optoelectron. Adv. Mater. 13 (7), 917 (2011).Google Scholar
  5. 5.
    T. Phongamwong, M. Chareonpanicha, and J. Limtrakul, Appl. Catal. B 168-169, 114 (2015).CrossRefGoogle Scholar
  6. 6.
    G. Calogero, G. D. Marco, S. Caramori, et al., Energy Environ. Sci. 2 (11), 1162 (2009).CrossRefGoogle Scholar
  7. 7.
    J. H. Park, K. C. Ko, E. Kim, et al., Org. Lett. 14 (21), 5502 (2012).CrossRefGoogle Scholar
  8. 8.
    B. Liu, L. Wen, K. Nakata, et al., Chem. Eur. J. 18 (40), 12705 (2012).CrossRefGoogle Scholar
  9. 9.
    G. T. Brown and J. R. Darwent, J. Chem. Soc. Faraday Trans. I. 80 (6), 1631 (1984).CrossRefGoogle Scholar
  10. 10.
    W. R. McNamara, R. L. Milot, H. Song, et al., Energy Environ. Sci. 3 (7), 917 (2010).CrossRefGoogle Scholar
  11. 11.
    M. Dadachov, US Patent No. 0171877 (2006).Google Scholar
  12. 12.
    G. M. Kuz’micheva, Fine Chem. Techol. 10 (6), 5 (2015).Google Scholar
  13. 13.
    I. Vasilyeva, G. Kuz’micheva, A. Pochtar, et al., J. New Chem. 40 (1), 151 (2016).CrossRefGoogle Scholar
  14. 14.
    E. Savinkina, L. Obolenskaya, and G. Kuzmicheva, Appl. Nanosci. 5 (1), 125 (2015).ADSCrossRefGoogle Scholar
  15. 15.
    E. V. Savinkina, L. N. Obolenskaya, G. M. Kuzmicheva, et al., Cryst. Eng. Commun. 17, 7113 (2015).CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • L. N. Obolenskaya
    • 1
  • E. V. Savinkina
    • 1
  • G. M. Kuzmicheva
    • 1
  1. 1.Institute of Fine Chemical TechnologiesMoscow Technological UniversityMoscowRussia

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