Size-controlled synthesis of BiFeO sub(3) nanoparticles by a facile and stable sol-gel method

Bismuth ferrite (BiFeO sub(3)) acting as a significant multiferroic material exhibits unique magnetic and ferroelectric properties. Here we report the size-controlled synthesis of BiFeO sub(3) nanoparticles via a facile and stable Pechini sol-gel method, in which uses tartaric acid as a complexing a...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2016-10, Vol.27 (10), p.10803-10809
Main Authors: Qin, Ben, Guo, Yiping, Pan, Di, Sun, Chongyang, Wang, Xingyu, Duan, Huanan, Li, Hua, Liu, Hezhou
Format: Article
Language:English
Subjects:
Electronics
Ferrite
Ferromagnetism
Magnetic properties
Nanoparticles
Polymerization
Sol gel process
Synthesis
Online Access:Get full text
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Summary:Bismuth ferrite (BiFeO sub(3)) acting as a significant multiferroic material exhibits unique magnetic and ferroelectric properties. Here we report the size-controlled synthesis of BiFeO sub(3) nanoparticles via a facile and stable Pechini sol-gel method, in which uses tartaric acid as a complexing agent, ethylene glycol as a polymerizing agent. It is found that the nanoparticle size is sensitive to the gel-forming temperature. The nanoparticles with size as small as 30 nm have been obtained. A sequential reaction process and the mechanism of size controllable growth of BiFeO sub(3) has been presented. The effects of size on optical and magnetic properties have been also investigated. The decreasing particles lead to blue shift in the band gap. BiFeO sub(3) nanoparticles show weak ferromagnetic character due to a Fe super(3+) oxidation state, and the magnetization increases with decrease in the particle size.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-016-5186-x