| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1266987 | Ultrasonics Sonochemistry | 2011 | 5 Pages |
The relationship between the physicochemical properties and the activity of sonocatalysts is investigated and elucidated in the sonodegradation of amaranth. The sonocatalyts are composed of La3+ doped TiO2 synthesized via a sol–gel process. The sonocatalysts are characterized by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopic analysis, UV–Vis absorption spectroscopy, and X-ray photoelectron emission spectroscopy. The sonodegradation products of amaranth are analyzed by UV–Vis absorption spectroscopy. The presence of the La3+ doped TiO2 catalysts substantially enhances the sonocatalytic degradation of amaranth in aqueous suspensions. The possible sonocatalytic mechanisms for such are discussed.
► A series of La3+ doped TiO2 sonocatalysts were prepared through a simple method. ► The sonocatalytic activity of the as-synthesized La3+ doped TiO2 is higher than that of pure TiO2 nanoparticles. ► The new La3+ doped TiO2 sonocatalysts will have great significance for the design of sonocatalysts.
