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Synthesis of CaIn2O4 Rods and Its Photocatalytic Performance Under Visible-light Irradiation

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Abstract

A type of CaIn2O4 particle was synthesized at a relatively low temperature by a solution-combustion method using calcium nitrate and indium nitrate as oxidizers and glycine as a fuel, followed by a high-temperature postannealing, during which the nanometric grains of the as-combusted CaIn2O4 powder self-assembled into nano-capsules, and subsequently the nano-capsules linked end to end to form the regular CaIn2O4 rods with the diameter of 300 nm and the length of about 2 μm. The CaIn2O4 rods showed significantly higher photocatalytic activity for methylene blue degradation and toluene oxidation under visible-light irradiation than that of the sample synthesized by the conventional solid-state reaction. Particularly, the Pt-dispersed CaIn2O4 rods exhibited excellent photocatalytic activity for water decomposition under visible-light irradiation. The high crystallization degree, low impurity level and relatively large surface area of CaIn2O4 rods were considered as the important factors for its high photocatalytic performance.

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Acknowledgments

This work was supported by NSFC (grant#: 50721061).

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Authors and Affiliations

  1. National Synchrotron Radiation Lab, University of Science & Technology of China, 230029, Hefei, Anhui, People’s Republic of China

    Jianjun Ding, Song Sun, Jun Bao, Zhenlin Luo & Chen Gao

  2. Hefei National Laboratory for Physical Sciences at the Micorscale, University of Science & Technology of China, 230029, Hefei, Anhui, People’s Republic of China

    Chen Gao

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  1. Jianjun Ding
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  2. Song Sun
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  3. Jun Bao
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  4. Zhenlin Luo
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Correspondence to Jun Bao or Chen Gao.

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Ding, J., Sun, S., Bao, J. et al. Synthesis of CaIn2O4 Rods and Its Photocatalytic Performance Under Visible-light Irradiation. Catal Lett 130, 147–153 (2009). https://doi.org/10.1007/s10562-009-9840-2

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  • DOI: https://doi.org/10.1007/s10562-009-9840-2

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