Impact of Titanium Monoxide Stoichiometry and Heat Treatment on the Properties of TiOy/HAp Nanocomposite
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Journal of Alloys and Compounds
ISSN: 0925-8388
, E-ISSN: 1873-4669
|
| Output data |
Year: 2019,
Volume: 800,
Pages: 412-418
Pages count
: 7
DOI:
10.1016/j.jallcom.2019.06.057
|
| Tags |
Heterovalent substitution; Hydroxyapatite; Nanocomposite; Phase composition; Structure; Titanium monoxide |
| Authors |
Rempel Svetlana V.
1,2
,
Eselevich Danil A.
1
,
Gerasimov Evgeny Yu.
3
,
Valeeva Albina A.
1,2
|
| Affiliations |
| 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
|
|
Funding (3)
|
1
|
Russian Science Foundation
|
14-23-00025
|
|
2
|
Ministry of Science and Higher Education of the Russian Federation
|
0397-2019-0001
|
|
3
|
Russian Foundation for Basic Research
|
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.