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Facile hydrothermal synthesis and characterization of LaFeO3 nanospheres for visible light photocatalytic applications

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Abstract

LaFeO3 nanospheres were synthesized by hydrothermal method followed by calcination. Citric acid was found to be key factor to the purity and the surface morphology of the LaFeO3 nanospheres. The obtained nanospheres have been structurally characterized by XRD which confirms the single crystalline orthorhombic structure. The structural information of the nanosphere was also confirmed from the Raman spectrum. HRSEM and AFM revealed that the prepared sample has been composed of spherical like morphology with an average size of about 45 nm. From XPS analysis, the chemical state of the LaFeO3 nanospheres was confirmed. Magnetic measurement indicates the products shows weak magnetic behaviour. The UV–Vis spectroscopy analysis shows strong absorption at 466 nm which confirms that the obtained material has excellent visible light absorption ability. Furthermore, the photocatalytic experiment demonstrates that the prepared LaFeO3 nanospheres exhibit well and stable photocatalytic activity for decomposition of methyl orange under visible-light irradiation.

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Acknowledgments

The authors thank the Sophisticated Analytical Instrumentation Facility (SAIF) IIT Madras for extending facilities for HRSEM and VSM studies.

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Authors and Affiliations

  1. Crystal Growth Centre, Anna University, Chennai, 25, India

    R. Dhinesh Kumar & R. Jayavel

  2. Centre for Nanoscience and Technology, Anna University, Chennai, 25, India

    R. Jayavel

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  1. R. Dhinesh Kumar
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  2. R. Jayavel
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Correspondence to R. Dhinesh Kumar.

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Dhinesh Kumar, R., Jayavel, R. Facile hydrothermal synthesis and characterization of LaFeO3 nanospheres for visible light photocatalytic applications. J Mater Sci: Mater Electron 25, 3953–3961 (2014). https://doi.org/10.1007/s10854-014-2113-x

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  • DOI: https://doi.org/10.1007/s10854-014-2113-x

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