Photoluminescence and photocatalytic properties of Eu3+-doped ZnO nanoparticles synthesized by the nitrate-citrate gel combustion method

Shivakumara, C and John, Anu K and Behera, Sukanti and Dhananjaya, N and Saraf, Rohit (2017) Photoluminescence and photocatalytic properties of Eu3+-doped ZnO nanoparticles synthesized by the nitrate-citrate gel combustion method. In: EUROPEAN PHYSICAL JOURNAL PLUS, 132 (1).

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Abstract

A series of Eu3+-doped ZnO nanoparticles were synthesized by the nitrate-citrate gel combustion method. Rietveld refinement results verified that the compounds were crystallized in the wurtzite hexagonal structure with space group P63mc (No. 186). Field emission scanning electron microscopy micrographs show porous morphology. Transmission electron microscopy analysis revealed that the particles are in the range of 35-40 nm. The photoluminescence spectra of ZnO nanocrystallites exhibit a broad intense peak at 506nm and a weak emission peak at 379nm under UV excitation. The characteristic emission peaks were observed at 592 and 612nm due to the D-5(0) -> F-7(1) and D-5(0) -> F-7(2) transitions of the Eu3+ ion. The photocatalytic degradation of methylene blue dye increases with increase in Eu3+ ion concentration. 5 mol% Eu3+-doped ZnO nanoparticles showed 100% dye degradation within 150 min. The present work can be useful for display devices and environmental remedy applications.

Item Type:	Journal Article
Publication:	EUROPEAN PHYSICAL JOURNAL PLUS
Publisher:	SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
Additional Information:	Copy right for this article belongs to the SPRINGER HEIDELBERG, TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	21 Mar 2017 09:41
Last Modified:	21 Mar 2017 09:41
URI:	http://eprints.iisc.ac.in/id/eprint/56411

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