Fabrication of Yb-doped TiO2 using liquid phase plasma process and its photocatalytic degradation activity of naproxen

  • Hye-Jin Bang
  • Heon Lee
  • Young-Kwon Park
  • Hangun Kim
  • Hyung-Ho Ha
  • Young Hyun Yu
  • Sun-Jae Kim
  • Sang-Chul JungEmail author
Advanced Nano Materials


Photocatalysts responding to visible light were prepared by doping ytterbium (Yb) to TiO2 powder by LPP method. Yb2O3 nanoparticles were uniformly precipitated on the surface of TiO2 powder, and when the precursor concentration was increased, the precipitated Yb2O3 nanoparticles increased. The precipitated Yb element lowered the band gap energy of Yb-doped TiO2 photocatalyst (YTP) by 0.07 to 0.14 eV compared to bare TiO2. YTPs degraded naproxen (NPX) better than bare TiO2, especially under blue LED light (maximum wavelength 470 nm), and YTP containing higher Yb elements showed higher decomposition activity. NPX was decomposed into CO2 and H2O by decarboxylation and demethylation by hydroxyl radicals generated from TiO2 photocatalysts, suggesting a degradation pathway based on the three intermediates detected by LC/MS analysis.



This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1D1A1B07049595).


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© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  1. 1.Department of Environmental EngineeringSunchon National UniversitySunchonRepublic of Korea
  2. 2.School of Environmental EngineeringUniversity of SeoulSeoulRepublic of Korea
  3. 3.College of PharmacySunchon National UniversitySunchonRepublic of Korea
  4. 4.Faculty of Nanotechnology and Advanced Materials EngineeringSejong UniversitySeoulRepublic of Korea

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