Synthesis of Nanocrystalline InVO₄ by Hydrothermal Process and its Visible-Light Photocatalytic Activity

Abstract:

Monophasic orthorhombic InVO₄ was synthesized using InCl₃ and NH₄VO₃ as starting materials by a hydrothermal approach. The as-prepared InVO₄ product was characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectroscopy (DRS). It was found that the as-prepared InVO₄ shows strong visible-light absorption with absorption onset of 515 nm, indicating a narrow optical band gap of 2.4 eV. Furthermore, the as-prepared InVO₄ shows high visible-light photocatalytic activity for decomposition of methyl orange, which is ascribed to the strong visible-light absorption.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 734-737
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.734
• Online since: July 2011
• Authors: Pei Song Tang, Hai Feng Chen, Feng Cao, Guo Xiang Pan, Kun Yan Wang
• Keywords: Hydrothermal Process, InVO₄, Photocatalytic, Visible Light

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