Hydrothermal synthesis of monodispersed CePO4:Tb3+ porous microspheres and their redox-responsive luminescence

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Monodispersed CePO4:Tb3+ microspheres, which were formed by aggregation of primary nanoparticles, were synthesized by a hydrothermal reaction method assisted with ethylenediaminetetraacetic acid. The microspheres were found to have a hierarchically porous structure as well as a high specific surface area according to structural and chemical analyses. The microspheres exhibited green photoluminescence (PL) due to 4f–4f electronic transitions of Tb3+ ions doped in the CePO4 crystal upon irradiation with ultraviolet light. The microspheres were then treated with an oxidant (potassium permanganate) and a reductant (l(+)-ascorbic acid) in aqueous solutions at room temperature to examine their effect on the PL property. The PL intensity of the microspheres was once decreased by the oxidation and then increased by the reduction. Such the change in the PL intensity was also shown to be quantitative against the concentration of the oxidant and the reductant. Thus the monodispersed CePO4:Tb3+ porous microspheres were demonstrated to be a facile luminescence-sensing material.

本文言語English
論文番号807
ジャーナルSN Applied Sciences
1
8
DOI
出版ステータスPublished - 2019 8月

ASJC Scopus subject areas

  • 工学(全般)
  • 環境科学(全般)
  • 材料科学(全般)
  • 物理学および天文学(全般)
  • 化学工学(全般)
  • 地球惑星科学(全般)

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