Synthesis of Nanocrystalline LaFeO3 by Precipitation and its Visible-Light Photocatalytic Activity

Pei Song Tang; Meng Bi Fu; Hai Feng Chen; Feng Cao

doi:10.4028/www.scientific.net/MSF.694.150

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HomeMaterials Science ForumMaterials Science Forum Vol. 694Synthesis of Nanocrystalline LaFeO3 by...

Synthesis of Nanocrystalline LaFeO₃ by Precipitation and its Visible-Light Photocatalytic Activity

Abstract:

The LaFeO3 nanoparticle was synthesized using Fe(NO3)3 and La(NO3)3 as starting materials by homogeneous precipitation method. The as-prepared LaFeO3 product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectroscopy (DRS). XRD and SEM demonstrate the successful synthesis of single phase perovskite LaFeO3 and with 60-80 nm particle size. It was found that the as-prepared LaFeO3 shows strong visible-light absorption with absorption onset of 532 nm, indicating a narrow optical band gap of 2.33 eV. Furthermore, the as-prepared LaFeO3 shows high visible-light photocatalytic activity for decomposition of methylene blue in comparison with the commercial Degussa P25.

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Periodical:

Materials Science Forum (Volume 694)

Pages:

150-154

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.694.150

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Online since:

July 2011

Authors:

Pei Song Tang, Meng Bi Fu, Hai Feng Chen, Feng Cao

Keywords:

LaFeO₃, Nanomaterial, Photocatalyst, Precipitation

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