Fabrication of Bifunctional SiO sub(2)/Europium-Polyoxometalates/Ag Particles and their Luminescence and Catalysis Properties

In this paper, Stober silica particles were decorated with polyethylenelmlne and silver nanoparticles and Eu-polyoxometalates were grafted on the surface of polyethyleneimine/silica spheres. The hybrid SiO sub(2)/Eu-polyoxometalates/Ag particles were characterized by IR, UVvis, luminescent spectra,...

Full description

Saved in:
Bibliographic Details
Published in:Key engineering materials 2013-09, Vol.575-576, p.216-224
Main Authors: Wang, Jun, Fan, Shao Hua, Zhao, Wei Qian, Li, Wu Ke, Lu, Xue Lian
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Luminescence
Nanoparticles
Scanning electron microscopy
Silicon dioxide
Silver
Styrenes
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, Stober silica particles were decorated with polyethylenelmlne and silver nanoparticles and Eu-polyoxometalates were grafted on the surface of polyethyleneimine/silica spheres. The hybrid SiO sub(2)/Eu-polyoxometalates/Ag particles were characterized by IR, UVvis, luminescent spectra, scanning electron microscopy, transmission electron microscope, and cyclic voltammetry (CV), respectively. The hybrid particles show the bright red emission under UV light which can be observed by naked eyes. The luminescent properties of particles have been Investigated which show that Ag nanoparticles have an influences on the luminescence of europium ions. The electrochemical activities of SiO sub(2)/Eu-polyoxometalates/Ag particles have been demonstrated by CV measurement. The catalytic results indicate that the hybrid particles show the catalytic properties in the oxidation of styrene and benzaldehyde is the main product of the reaction.
ISSN:1013-9826
DOI:10.4028/www.scientific.net/KEM.575-576.216