期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 860, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.158370
关键词
Sr4Al14O25; Eu2+; Dy3+; Photocatalysis; Photoluminescence; Degradation
资金
- South African Research Chairs Initiative of the Department of Science and Technology
- National Research Foundation of South Africa [84415]
- University of the Free State
Highly efficient and reusable Sr4Al14O25: Eu2+, Dy3+@ZnO nanocomposites were developed for the photocatalysis of toxic pollutants from aqueous systems. The materials exhibited excellent photophysical and photocatalytic properties, degrading pollutants rapidly under UV-Visible irradiation.
Highly efficient and reusable Sr4Al14O25: Eu2+, Dy3+@ZnO nanocomposites were developed for the photocatalysis of toxic pollutants from aqueous systems. The structural, photophysical and photocatalytic properties of the materials were investigated by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray, and photoluminescence spectroscopy. The synergistic effects between persistent luminescent Sr4Al14O25: Eu2+, Dy3+ phosphor and ZnO significantly enhanced the photocatalytic efficiencies of the composites where the phosphor performed as nano-illumination sources to activate ZnO in situ. The composite system degraded aqueous methyl orange in less than 1 h under UV-Visible irradiation. The materials developed are environment friendly, cost effective, highly efficient and reusable making them powerful candidates for industrial waste water remediation. (C) 2020 Elsevier B.V. All rights reserved.
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