NaYF4:Er,Yb/Bi2MoO6 core/shell nanocomposite: A highly efficient visible-light-driven photocatalyst utilizing upconversion

Yuanyuan Sun, Wenzhong Wang, Songmei Sun, Ling Zhang

    研究成果: ジャーナルへの寄稿学術誌査読

    11 被引用数 (Scopus)

    抄録

    NaYF4:Er,Yb/Bi2MoO6 core/shell nanocomposite was designed and prepared for the first time based on upconversion. The products were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution TEM (HRTEM), energy dispersive X-ray spectroscopy (EDS) and diffuse reflectance spectra (DRS). The results revealed that the as-synthesized NaYF4:Er,Yb/Bi 2MoO6 consisted of spheres with a core diameter of about 26 nm and a shell diameter of around 6 nm. The core was upconversion illuminant NaYF4:Er,Yb and the shell was Bi2MoO6 around the core, which was confirmed by EDS. The NaYF4:Er,Yb/Bi 2MoO6 exhibited higher photocatalytic activity for the photodecomposition of Rhodamine B (RhB) under the irradiation of Xe lamp and green light emitting diode (g-LED). The mechanism of the high photocatalytic activity was discussed by photoluminescence spectra (PL), which is mainly attributed to upconversion of NaYF4:Er,Yb in the NaYF 4:Er,Yb/Bi2MoO6 nanocomposite and the core-shell structure.

    本文言語英語
    ページ(範囲)50-55
    ページ数6
    ジャーナルMaterials Research Bulletin
    52
    DOI
    出版ステータス出版済み - 4月 2014

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学(全般)
    • 凝縮系物理学
    • 材料力学
    • 機械工学

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