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Novel multiferroic Bi2Fe4O9 nanoparticles: the interesting optical, photocatalytic, and multiferroic properties

X. H. WU1, J. MIAO1,* , Y. ZHAO1, X. B. MENG1, X .G. XU1, S. G. WANG2, Y. JIANG1

Affiliation

  1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
  2. State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China

Abstract

The single-crystalline multiferroic Bi2Fe4O9 nanoparticle has been synthesized using glycine combustion method. The size of the Bi2Fe4O9 particle increases from 50 nm to 800 nm with increasing annealing temperature from 923 K to 1173 K. The microstructures of Bi2Fe4O9 nanocrystal were observed from transmission electron microscopy and selected area electron diffraction. Moreover, with increasing annealing temperature, the photocatalysis properties of Bi2Fe4O9 nanoparticles were greatly improved. The degradation rate of the methyl orange solution of Bi2Fe4O9 nanoparticles was higher as 98%. The resistive switching properties of Bi2Fe4O9 nanoparticles were investigated via current-voltage measurements. Interestingly, a bistable resistive switching characteristic was achieved at ambient temperature, which exhibits a potential for next generation nonvolatile memory applications..

Keywords

Bi2Fe4O9 nanoparticles, Multiferroic, Photocatalysis, Resistive switching.

Citation

X. H. WU, J. MIAO, Y. ZHAO, X. B. MENG, X .G. XU, S. G. WANG, Y. JIANG, Novel multiferroic Bi2Fe4O9 nanoparticles: the interesting optical, photocatalytic, and multiferroic properties, Optoelectronics and Advanced Materials - Rapid Communications, 7, 1-2, January-February 2013, pp.116-120 (2013).

Submitted at: July 20, 2012

Accepted at: Feb. 20, 2013