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- Title
Conditions for Titania(IV) Recrystallization from the η Modification to Anatase.
- Authors
Obolenskaya, L. N.; Savinkina, E. V.; Kuzmicheva, G. M.
- 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.
- Subjects
TITANIUM dioxide; SULFATES; HYDROLYSIS; METHYLENE blue; PHOTOCATALYTIC oxidation; PHOTOSENSITIZERS
- Publication
Crystallography Reports, 2018, Vol 63, Issue 2, p250
- ISSN
1063-7745
- Publication type
Article
- DOI
10.1134/S1063774518020177