Szczegóły publikacji
Opis bibliograficzny
Hard-template synthesis of titanium dioxide hollow spheres / Anna KUSIOR, Andrzej Warchał, Stanisław KOMORNICKI, Marta RADECKA // Micro & Nano Letters ; ISSN 1750-0443. — 2014 — vol. 9 iss. 10, s. 721–725. — Bibliogr. s. 725
Autorzy (4)
Dane bibliometryczne
| ID BaDAP | 85931 |
|---|---|
| Data dodania do BaDAP | 2014-11-27 |
| Tekst źródłowy | URL |
| DOI | 10.1049/mnl.2014.0414 |
| Rok publikacji | 2014 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Micro & Nano Letters |
Abstract
An easy approach for the fabrication of titanium dioxide hollow spheres is proposed. Nanostructures were obtained by the conventional hard template method with silica-protected calcination. The samples were characterised by differential thermal analysis and thermogravimetry, Brunauer-Emmett-Teller nitrogen adsorption isotherms, X-ray diffraction, scanning and transmission electron microscopy (SEM and TEM). Raman spectroscopy and optical properties of the prepared materials were studied as well. X-ray analysis has shown that the silica protection layer allows direct phase transformation from amorphous titania to crystalline anatase regardless of the temperature. The crystallite size is more than 5 nm. The diameter of the obtained hollow nanostructures is within the range 115-420 nm. The thickness of the walls varies from 12 to 38 nm depending on annealing conditions. TEM and SEM images confirm their spherical shape. © The Institution of Engineering and Technology 2014.