Impact of Titanium Monoxide Stoichiometry and Heat Treatment on the Properties of TiOy/HAp Nanocomposite
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Journal of Alloys and Compounds
ISSN: 0925-8388
, E-ISSN: 1873-4669
|
| Вых. Данные |
Год: 2019,
Том: 800,
Страницы: 412-418
Страниц
: 7
DOI:
10.1016/j.jallcom.2019.06.057
|
| Ключевые слова |
Heterovalent substitution; Hydroxyapatite; Nanocomposite; Phase composition; Structure; Titanium monoxide |
| Авторы |
Rempel Svetlana V.
1,2
,
Eselevich Danil A.
1
,
Gerasimov Evgeny Yu.
3
,
Valeeva Albina A.
1,2
|
| Организации |
| 1 |
Institute of Solid State Chemistry UB RAS, 91, Pervomaiskaya st., Ekaterinburg, 620990, Russian Federation
|
| 2 |
Ural Federal University named after the first President of Russia B. N. Yeltsin, 19, Mira st., Ekaterinburg, 620002, Russian Federation
|
| 3 |
Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 5, Novosibirsk, 630090, Russian Federation
|
|
Информация о финансировании (3)
|
1
|
Российский научный фонд
|
14-23-00025
|
|
2
|
Министерство науки и высшего образования Российской Федерации
|
0397-2019-0001
|
|
3
|
Российский фонд фундаментальных исследований
|
19-03-00051 (АААА-А19-119011890047-3)
|
Nanocomposites with 10 or 20 wt% additives of nonstoichiometric titanium monoxide TiOy (y = 0.92; 1.23) to hydroxyapatite (HAp) were prepared. The nanocomposites were studied by using of X-ray diffraction analysis (XRD), high-resolution transmission electron microscopy (HRTEM), infrared (IR) and Raman spectroscopy methods. It was found that after annealing at 400 oС the titanium valence changes. The surface groups originating from HPO4 2− and OH− coordinating to Ti4+ and terminal carbonyls are formed. Partial cationic heterovalent substitution of Ti3+ and Ti4+ for Са2+ takes place. It was shown that the phase composition of HAp/TiOy nanocomposites depended on the stoichiometry of additives and their weight content. © 2019 Elsevier B.V.