The interaction of gaseous SiF4 and HF with surface of aqueous solution of LaCl3 leading to the formation of the LaF3–SiO2·nH2O nanocomposite and microtubes on its basis
- Авторы: Gulina L.1, Tolstoy V.1, Lobinsky A.1, Petrov Y.1
-
Учреждения:
- St. Petersburg State University
- Выпуск: Том 86, № 12 (2016)
- Страницы: 2689-2692
- Раздел: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/216760
- DOI: https://doi.org/10.1134/S1070363216120197
- ID: 216760
Цитировать
Аннотация
The interaction of gaseous SiF4 and HF with lanthanum cations at the surface of aqueous solution of LaCl3 has been studied for the first time. The reaction results in the formation of about 600 nm layer of a hydrophobic substance at the solution surface. According to the data of electron microscopy, IR Fourier spectroscopy, X-ray diffraction, and X-ray spectral microanalysis, the layer is formed by the LaF3‒SiO2·nH2O nanocomposite and consists of 2D LaF3 nanocrystals and SiO2 spherical nanoparticles. Drying in air at room temperature is accompanied by the layer rolling with the formation of microtubes (20 μm in diameter and up to 300 μm long).
Ключевые слова
Об авторах
L. Gulina
St. Petersburg State University
Автор, ответственный за переписку.
Email: l.gulina@spbu.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
V. Tolstoy
St. Petersburg State University
Email: l.gulina@spbu.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
A. Lobinsky
St. Petersburg State University
Email: l.gulina@spbu.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
Yu. Petrov
St. Petersburg State University
Email: l.gulina@spbu.ru
Россия, Universitetskaya nab. 7–9, St. Petersburg, 199034
![](/img/style/loading.gif)