6533b862fe1ef96bd12c74ce
RESEARCH PRODUCT
Supramolecular capping-ligand effect of lamellar silica mesostructures for the one-pot synthesis of highly dispersed ZnO nanoparticles
Daniel BeltránAurelio BeltránCarmen GuillemLorenzo FernándezJulio LatorreJosé Manuel MoralesNúria GarroPedro BurguetePedro Amoróssubject
NanocompositeAqueous solutionPhotoluminescenceMaterials scienceMechanical EngineeringInorganic chemistrySupramolecular chemistrychemistry.chemical_elementBioengineeringGeneral ChemistryZincchemistry.chemical_compoundchemistryChemical engineeringAtraneMechanics of MaterialsQuantum dotGeneral Materials ScienceLamellar structureElectrical and Electronic Engineeringdescription
ZnO?SiO2 lamellar nanocomposites with high zinc content (5?Si/Zn?50) have been synthesized through a one-pot surfactant-assisted procedure from aqueous solution and starting from molecular atrane complexes of Zn and Si as inorganic hydrolytic precursors. This approach allows optimization of the dispersion of the ZnO nanodomains in the silica sheets. The nature of the layered silica materials has been confirmed by x-ray diffraction. Spectroscopic (ultraviolet?visible and photoluminescence) study of these layered silica materials shows that, regardless of the Si/Zn ratio, Zn atoms are organized in well-dispersed, uniform ZnO nanodomains (about 1.2?nm) partially embedded within the silica sheets. Quantum confinement effects have been observed in the optical response of the ZnO nanoparticles included in these nanocomposites.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-08-21 | Nanotechnology |