Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 297, Issue -, Pages 14-19Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2014.10.002
Keywords
Near-infrared light (NIR); Photocatalysis; NaYF4:Yb3+,Tm3+; ZnO
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Funding
- NSFC [51072065, 61178073, 61077033, 51302103]
- Jilin Provincial Science & Technology Department [20140520101JH]
- NCET in University [NCET-08-0243]
- State Key Laboratory on Integrated Optoelectronics
- Tsinghua National Laboratory for Information Science and Technology (TNList) Cross-discipline Foundation
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In this work, the effects of NaYF4:Yb3+, Tm3+ (NYT) structure on the near-infrared light (NIR) photocatalysis performance of ZnO were investigated. alpha-NYT/ZnO nanocomposites (NCs) and beta-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 alpha- and beta-NYT/ZnO NCs were studied by the degradation of Rhodamine B. The differential photocatalytic activities between of alpha- and beta-NYT/ZnO NCs are believed to be correlated to the effects of alpha- and beta-NYT on the oxygen vacancies and exposed crystal face of ZnO. (C) 2014 Elsevier B.V. All rights reserved.
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