Interaction of titanium oxide with sodium hydroxide at hydrothermal conditions
| Autor: | A. N. Murashkevich |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Sodium Organic Chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Titanate 0104 chemical sciences Analytical Chemistry Titanium oxide Inorganic Chemistry chemistry.chemical_compound chemistry Chemistry (miscellaneous) Sodium hydroxide Titanium dioxide Alkoxide Photocatalysis 0210 nano-technology Nuclear chemistry Titanium |
| Zdroj: | Proceedings of the National Academy of Sciences of Belarus, Chemical Series. 56:150-157 |
| ISSN: | 2524-2342 1561-8331 |
| DOI: | 10.29235/1561-8331-2020-56-2-150-157 |
| Popis: | Sodium titanates were obtained by hydrothermal treatment using titanium tetrabutoxide (ТBT), titanium tetroisopropoxide (TIPT), hydrated titanium dioxide (prepared by hydrolysis of titanium alkoxide) or air-dried TiO2 sol with a molar ratio of TBT/TIPT/TiO2: NaOH equal to 1:10–80, at the temperature 130–180 °C and treatment time 24–72 h. Samples were characterized by the adsorption method, X-ray phase analysis, scanning electron microscopy. The photocatalytic properties of nanostructured titanate in the H-form in the process of Rhodamine FL–BM photodegradation under UV-irradiation (K = 0.03–0.05 min–1), as well as the electrorheological properties, were evaluated. Partially hydrated sodium titanates as a filler of the electrorheological dispersion (the filler content of dispersion was 5 %) exhibited the shear stress of 50–60 Pa and the leakage current density of 1.0–1.5 μA/cm2 at an electric field strength of E = 4 kV/cm at a shear rate of 17.1 s–1. |
| Databáze: | OpenAIRE |
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