| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1259037 | Journal of Rare Earths | 2015 | 7 Pages |
Nd-doped TiO2 (NT) photocatalysts with different contents of Nd were synthesized by sol-gel method. Then sulfated Nd-doped TiO2 (SNT) solid superacid photocatalysts were prepared by an incipient wetness impregnation technique. The photocatalytic activity of catalysts was evaluated by the photodegradation of methylene blue under visible light irradiation. Analytical results demonstrated that Nd doping inhibited the growth of TiO2 crystallite and enhanced the thermal stability of anatase TiO2. Meanwhile, sulfate ions modification increased the specific surface area of samples. In addition, the optical absorption edges of SNT photocatalysts shifted to longer wavelength compared with the undoped TiO2. Such SNT with Nd dosage of 0.25 at.% exhibited the highest photocatalytic activity in the degradation of methylene blue upon irradiation with visible light.
Graphical abstractPhotocatalytic activities of undoped TiO2, NT and SNT with 0.25 at.% Nd content calcined at different temperaturesFigure optionsDownload full-size imageDownload as PowerPoint slide
