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

<p>Abstract</p> <p>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<sub>2 </sub>layer using an inter...

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Bibliographic Details
Main Authors: Fontes Garcia Arlindo, Fernandes Marisa, Coutinho Paulo
Format: Article
Language:English
Published: SpringerOpen 2011-01-01
Series:Nanoscale Research Letters
Online Access:http://www.nanoscalereslett.com/content/6/1/426
Description
Summary:<p>Abstract</p> <p>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<sub>2 </sub>layer using an intermediate SiO<sub>2 </sub>coupling reagent by a sol-gel process. The resulting CdSe/TiO<sub>2 </sub>core/shell nanoparticles showed appreciable photocatalytic activity at &#955; = 405 nm which can only originate because of electron injection from the conduction band of CdSe to that of TiO<sub>2</sub>.</p>
ISSN:1931-7573
1556-276X