Impact of the production method and diagnostics conditions on the compositions and structure of nanodimensional anatase
-
Olesya Timaeva
,
Vladimir Nikolaichik
Abstract
The detail investigation of the samples with nanodimensional anatase, formed by hydrolysis of TiOSO4 × xH2O without or in the presence of polymer poly(N-vinyl caprolactam), physical precipitation of the polymer followed by the capture of commercial Hombifine N are performed by X-ray powder diffraction using laboratory and synchrotron radiation sources, transmission electron microscopy with the diffraction, and elemental analysis. The two «core»-«shell» models with nanoparticles and their associates as a core can be applied to samples produced. The synchrotron and electron radiation change the degree of crystallinity and the imperfection of anatase, isolate of TiO2−x(OH)2x × yH2O from the nanoparticle shell with a decrease in its thickness, lead to the anatase – rutile phase transition. The double diffraction effect on the appearance of kinematically forbidden reflections caused by the dynamic character of the electron diffraction. The photoactivity depends on microstructural characteristics (specific surface, nanoobjects sizes). The structure and elemental composition of nanoparticles (associates) affect antimicrobial activity against Staphylococcus aureus and Escherichia coli.
Acknowledgements
This work saw supported by the Ministry of Education and Science of the Russian Federation for support of this work (No. 4.1069.2017/PCh, State Task No. 075-00475-19-00).
Conflicts of interest: None.
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©2020 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Graphical Synopsis
- Inorganic Crystal Structures
- Crystallographic orientation of ilmenite inclusions in amphibole – an electron backscatter diffraction study
- Quaternary intermetallics RE2Pt3Ga4In (RE=Y, Gd-Tm) – intergrowth structures of NdRh2Sn4 and TiNiSi related slabs
- Impact of the production method and diagnostics conditions on the compositions and structure of nanodimensional anatase
- Alkaline earth metal ordering in CaCu9Mg2 and SrCu9Mg2
- Elucidating the physical properties of the molybdenum oxide Mo4O11 and its tantalum substituted variant Mo2Ta2O11
- Coordination sequences of 2-uniform graphs
- Silicate-germanate K2Y[(Si3Ge)O10(OH)] with unusual complex corrugated layer and its correlation to ring silicate gerenite and chain silicate chkalovite
- Letter
- On the 80th birthday of Professor (retired) Dr. Dr. h.c. Peter Paufler
Artikel in diesem Heft
- Frontmatter
- Graphical Synopsis
- Inorganic Crystal Structures
- Crystallographic orientation of ilmenite inclusions in amphibole – an electron backscatter diffraction study
- Quaternary intermetallics RE2Pt3Ga4In (RE=Y, Gd-Tm) – intergrowth structures of NdRh2Sn4 and TiNiSi related slabs
- Impact of the production method and diagnostics conditions on the compositions and structure of nanodimensional anatase
- Alkaline earth metal ordering in CaCu9Mg2 and SrCu9Mg2
- Elucidating the physical properties of the molybdenum oxide Mo4O11 and its tantalum substituted variant Mo2Ta2O11
- Coordination sequences of 2-uniform graphs
- Silicate-germanate K2Y[(Si3Ge)O10(OH)] with unusual complex corrugated layer and its correlation to ring silicate gerenite and chain silicate chkalovite
- Letter
- On the 80th birthday of Professor (retired) Dr. Dr. h.c. Peter Paufler
