CdSe/TiO2 core-shell nanoparticles produced in AOT reverse micelles: applications in pollutant photodegradation using visible light

被引：0
|
作者：
Arlindo M Fontes Garcia
Marisa SF Fernandes
Paulo JG Coutinho
机构：
[1] University of Minho,Centre of Physics (CFUM)
来源：
Nanoscale Research Letters | / 6卷
关键词：
TiO2; Methylene Blue; CdSe Nanoparticles; Photodegradation Rate; Cadmium Selenide;
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学科分类号：
摘要：
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 TiO2 layer using an intermediate SiO2 coupling reagent by a sol-gel process. The resulting CdSe/TiO2 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 TiO2.
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