Preparation of hollow titania nanoparticles of single-nanometer size using a PAMAM dendrimer template.
J Oleo Sci
; 62(8): 637-41, 2013.
Article
en En
| MEDLINE
| ID: mdl-23985494
ABSTRACT
Hollow titania nanoparticles of single-nanometer size have been prepared from titanium oxysulfate (TiOSO4) using poly(amidoamine) (PAMAM) dendrimer molecules (Generations 5 with amino terminal groups) as a template. At low pH (pH 1), hydrolysis of the titania precursor was attenuated and the sol-gel reaction preferentially proceeded at the dendrimer surface. Calcination at 450°C yielded crystalline titania nanoparticles of 5.5 nm diameter with a ~2 nm cavity. These hollow titania nanoparticles showed a larger band-gap energy than solid particles of corresponding size.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Sulfatos
/
Titanio
/
Nanotecnología
/
Nanoestructuras
/
Nanopartículas
Idioma:
En
Revista:
J Oleo Sci
Asunto de la revista:
BIOQUIMICA
Año:
2013
Tipo del documento:
Article
País de afiliación:
Japón