Jump to main content
Jump to site search

Issue 5, 2018
Previous Article Next Article

Recyclable (Fe3O4-NaYF4:Yb,Tm)@TiO2 nanocomposites with near-infrared enhanced photocatalytic activity

Author affiliations

Abstract

Herein, the design and synthesis of a multifunctional (Fe3O4-NaYF4:Yb,Tm)@TiO2 photocatalyst through a facile sol–gel process combined with electrostatic self-assembly has been reported. Particularly, as an upconversion sensor, NaYF4:Yb,Tm nanoparticles have the ability to convert near-infrared (NIR) light into ultraviolet (UV) emissions, so that the catalytic body TiO2 can indirectly utilize the NIR part of sunlight but not UV light. The excellent photocatalytic activity of the hybrid samples is evaluated using a model of the degradation of methylene blue (MB). Most importantly, the obtained materials exhibit remarkable magnetic properties because of the addition of a magnetic component (Fe3O4), therefore, the photocatalysts possess desired recyclability and reusability, which is significant for actual applications. Finally, the possible photocatalysis mechanism of the nanohybrids is discussed and hydroxyl radicals (OH˙) are confirmed as the main reactive species.

Graphical abstract: Recyclable (Fe3O4-NaYF4:Yb,Tm)@TiO2 nanocomposites with near-infrared enhanced photocatalytic activity

Back to tab navigation

Supplementary files

Publication details

The article was received on 13 Nov 2017, accepted on 19 Dec 2017 and first published on 20 Dec 2017


Article type: Paper
DOI: 10.1039/C7DT04279E
Citation: Dalton Trans., 2018,47, 1666-1673
  •   Request permissions

    Recyclable (Fe3O4-NaYF4:Yb,Tm)@TiO2 nanocomposites with near-infrared enhanced photocatalytic activity

    Y. Lv, L. Yue, Q. Li, B. Shao, S. Zhao, H. Wang, S. Wu and Z. Wang, Dalton Trans., 2018, 47, 1666
    DOI: 10.1039/C7DT04279E

Search articles by author

Spotlight

Advertisements