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The photo-electrochemical studies of Eu3+ doped yttrium orthovanadate-zinc-oxide-reduced graphene oxide nanohybrid

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Title The photo-electrochemical studies of Eu3+ doped yttrium orthovanadate-zinc-oxide-reduced graphene oxide nanohybrid
 
Creator PRAKASH, A
SINGH, NS
BAHADUR, D
 
Subject Microstructure
Electrochemical properties
Semiconductors
Optical properties
Luminescence
PHOTOCATALYTIC REDUCTION
QUANTUM YIELD
ZNO NANORODS
NANOCOMPOSITES
NANOPARTICLES
LUMINESCENCE
NANOSHEETS
GRAPHITE
CATALYST
TEMPERATURE
 
Description A new class of nanostructured photo-electrocatalyst Eu3+ doped yttrium orthovanadate-zinc oxide-reduced graphene oxide (YVO4:Eu3+-ZnO-RGO) nanohybrid was developed by a simple electrostatic self-assembly at room temperature, using ZnO, YVO4:Eu3+ and RGO as building blocks. Interaction among YVO4:Eu3+, ZnO and RGO is indicated by variation in hydrodynamic diameter (H-D) and zeta potentials of the products as compared to their individual components, thus suggesting that YVO4:Eu3+-ZnO-RGO is a nanohybrid and not a physical mixture. Electrochemical response of this nanohybrid towards the redox couple of Fe(CN)(6)(3-/4-) was investigated before and after UV irradiation. Apart from quenching of the green emission of ZnO in photoluminescence spectrum, which serves as a probe to monitor the interfacial electron transfer from excited ZnO to RGO, degradation in electrochemical redox process provides an additional path to monitor interfacial electron transfer. (C) 2014 Elsevier B.V. All rights reserved.
 
Publisher ELSEVIER SCIENCE SA
 
Date 2014-12-28T17:59:30Z
2014-12-28T17:59:30Z
2014
 
Type Article
 
Identifier MATERIALS CHEMISTRY AND PHYSICS, 144(3)529-537
0254-0584
1879-3312
http://dx.doi.org/10.1016/j.matchemphys.2014.01.032
http://dspace.library.iitb.ac.in/jspui/handle/100/17051
 
Language English