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The effect of phase structures on the near-infrared photocatalytic activity of NaYF4:Yb3+, Tm3+/ZnO nanocomposites

Paper ID Volume ID Publish Year Pages File Format Full-Text
26486 43955 2015 6 PDF Available
Title
The effect of phase structures on the near-infrared photocatalytic activity of NaYF4:Yb3+, Tm3+/ZnO nanocomposites
Abstract

•α/β-­NaYF4:Yb3+, Tm3+/ZnO NCs, a near-infrared (NIR) light photocatalyst, were successfully fabricated by a high temperature decomposition reaction method.•The photocatalytic activities of as-prepared α/β-NYT/ZnO NCs were studied upon NIR irradiation.•The α-NYT/ZnO NCs exhibited higher photocatalytic activity than that of β-NYT/ZnO NCs for the degradation of RhB under NIR irradiation.

In this work, the effects of NaYF4:Yb3+, Tm3+ (NYT) structure on the near-infrared light (NIR) photocatalysis performance of ZnO were investigated. α-NYT/ZnO nanocomposites (NCs) and β-NYT/ZnO NCs were fabricated by a high temperature decomposition reaction method. The prepared NCs were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), UV–vis spectroscopy, Raman spectroscopy, and photoluminescence spectra (PL). The NIR photocatalytic activities of the synthesized α- and β-NYT/ZnO NCs were studied by the degradation of Rhodamine B. The differential photocatalytic activities between of α- and β-NYT/ZnO NCs are believed to be correlated to the effects of α- and β-NYT on the oxygen vacancies and exposed crystal face of ZnO.

Keywords
Near-infrared light (NIR); Photocatalysis; NaYF4:Yb3+, Tm3+; ZnO
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The effect of phase structures on the near-infrared photocatalytic activity of NaYF4:Yb3+, Tm3+/ZnO nanocomposites
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 297, 15 January 2015, Pages 14–19
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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