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


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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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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