CdSe/TiO(2 )core-shell nanoparticles produced in AOT reverse micelles: applications in pollutant photodegradation using visible light

CdSe quantum dots with a prominent band-edge photoluminescence were obtained by a soft AOT water-in-oil (w/o) microemulsion templating method with an estimated size of 2.7 nm. The CdSe particles were covered with a TiO(2 )layer using an intermediate SiO(2 )coupling reagent by a sol-gel process. The...

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Detalles Bibliográficos
Autores principales: Fontes Garcia, Arlindo M, Fernandes, Marisa SF, Coutinho, Paulo JG
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2011
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3211843/
https://www.ncbi.nlm.nih.gov/pubmed/21711492
http://dx.doi.org/10.1186/1556-276X-6-426
Descripción
Sumario:CdSe quantum dots with a prominent band-edge photoluminescence were obtained by a soft AOT water-in-oil (w/o) microemulsion templating method with an estimated size of 2.7 nm. The CdSe particles were covered with a TiO(2 )layer using an intermediate SiO(2 )coupling reagent by a sol-gel process. The resulting CdSe/TiO(2 )core/shell nanoparticles showed appreciable photocatalytic activity at λ = 405 nm which can only originate because of electron injection from the conduction band of CdSe to that of TiO(2).

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