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1572044 
Journal Article 
Synthesis of BiFeO3 nanoparticles by a low-heating temperature solid-state precursor method 
Wang, Lei; Xu, J; Gao, Bo; Chang, A; Chen, J; Bian, L; Song, C 
2013 
1 
Materials Research Bulletin
ISSN: 0025-5408 
48 
2 
383-388 
WOS:000315751300038 
BiFeO3 nanoparticles were synthesized through low-heating
temperature solid-state precursor method. Solid-state Bi(NO3)(3)center dot 5H(2)O, Fe(NO3)(3)
center dot 9H(2)O and NaOH experience a chemistry reaction at room temperature, forming a
nanometer-sized precursor, which is conducive to lowering the crystallization temperature of
BiFeO3. Perovskite-type BiFeO3 forms at a much lower crystallization temperature at 425 degrees C
without addition of organic agent. This method can greatly reduce the energy consumption and
prevent Bi volatilization. The product was characterized by a variety of techniques such as TGA-
DSC, XRD, SEM, FT-JR. VSM and UV-vis spectroscopy. The particle morphology changes from an
average length of 80-100 to 400-500 nm as the annealing temperature increases from 450 to 600
degrees C. BiFeO3 prepared by this method can be an appropriate visible-light photovoltaic and
photocatalytic material due to its strong absorption band in the visible region and smaller band
gap (similar to 2.06 eV, BiFeO3 prepared at 600 degrees C). (c) 2012 Elsevier Ltd. All rights
reserved. 
Nanostructures; Thermogravimetric analysis; X-ray diffraction; Magnetic properties; Optical properties