| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1487304 | Materials Research Bulletin | 2015 | 7 Pages |
•The (Yb, N)-TiO2 nanoparticles were prepared and characterized.•The spectrum absorption region of (Yb, N)-TiO2 is red-shifted to visible light.•The recombination of the photo-generated electron–hole pairs of (Yb, N)-TiO2 is suppressed.•The photocatalytic activity of (Yb, N)-TiO2 is more higher than that of TiO2-P25, N-TiO2 and the Yb-TiO2.
(Yb, N)-TiO2 photocatalyst has been synthesized by sol–gel method combined with microwave chemical synthesis. Also, the efficiency of the (Yb, N)-TiO2 as a photocatalyst for the degradation of methylene blue (MB) using visible light irradiation has been evaluated. The prepared samples were characterized by XRD, TEM, XPS, UV–vis-DRS and PL. The results show that the (Yb, N)-TiO2 photocatalyst has the anatase TiO2 crystalline phase. The TEM micrograph demonstrated that the average particle size of the sample was about 12 nm. The band-gap energy absorption edge shifted to longer wavelength as compared to commercial TiO2-P25, N-TiO2 and the Yb-TiO2 prepared by our group. Results of degradation revealed that the (Yb, N)-TiO2 has shown much more higher photocatalytic activity than that of the TiO2-P25, the N-TiO2 and the Yb-TiO2 under the visible light.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
