Journal
OPTICAL MATERIALS
Volume 84, Issue -, Pages 89-93Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optmat.2018.06.053
Keywords
Photocatalytic activity; Upconversion; NaYF4@ Cu2O; Nanoparticles
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Funding
- National Natural Science Foundation of China [61575019, 51272022, 11474018]
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A new near-infrared-responsive photocatalyst of NaYF4:Yb,Tm@Cu2O have been successfully synthesized by a simple method. Methylene blue as a model pollutant was used to study the photocatalytic activity of NaYF4:Yb,Tm@Cu2O composites, and the energy transfer process between NaYF4:Yb, Tm and Cu2O and the origin of the degradation of pollutants were investigated. It was found that the energy transfer route between NaYF4:Yb, Tm and Cu2O is an important factor for the overall photocatalytic activity. This study suggests a promising system to apply upconversion materials for utilizing the near-infrared light to irradiate Cu2O-based photocatalysts.
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