Microwave-Assisted Hydrothermal Synthesis of Fe2O3-Sensitized SrTiO3 and its Luminescent Photocatalytic deNOx Activity with CaAl2O4:(Eu, Nd) Assistance

Authors

  • Huihui Li,

    Corresponding author
    1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, Gansu, China
    • Institute of Multidisciplinary Research for Advanced Materials, Tohuko University, Sendai, Japan
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  • Shu Yin,

    1. Institute of Multidisciplinary Research for Advanced Materials, Tohuko University, Sendai, Japan
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  • Yuhua Wang,

    1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou, Gansu, China
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  • Tsugio Sato

    1. Institute of Multidisciplinary Research for Advanced Materials, Tohuko University, Sendai, Japan
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Author to whom correspondence should be addressed. e-mail: lihuihui@mail.tagen.tohoku.ac.jp

Abstract

This work focused on the synthesis of high-activity strontium titanate (SrTiO3) photocatalysts through an environmentally friendly process. A high energy-efficient microwave-assisted hydrothermal method was employed to prepare Fe-loaded SrTiO3 that consisted of small particles around 50 nm in diameter. To achieve the effective assistance of long-lasting fluorescence, the obtained Fe-loaded SrTiO3 samples were coupled with CaAl2O4:(Eu, Nd). The photocatalytic activities were evaluated by the photo-decomposition of NO. Fe loaded SrTiO3 showed high photocatalytic activities not only under visible light irradiation but also in the dark with fluorescence assistance.

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