title: Sonocatalytic degradation of amaranth catalyzed by La3+ doped TiO2 under ultrasonic irradiation.
abstract: 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 La(3+) doped TiO(2) 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 La(3+) doped TiO(2) catalysts substantially enhances the sonocatalytic degradation of amaranth in aqueous suspensions. The possible sonocatalytic mechanisms for such are discussed.
authors: College of Environment and Chemical Engineering, State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin, PR China.
authors: Limin
authors: L
authors: Song
authors: Chao
authors: C
authors: Chen
authors: Shujuan
authors: S
authors: Zhang
authors: Qingwu
authors: Q
authors: Wei
mesh_terms: D027721:Amaranthus / Q000737:chemistry* / Q000528:radiation effects*; D007811:Lanthanum / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D013010:Sonication / Q000379:methods*; D014025:Titanium / Q000737:chemistry* / Q000528:radiation effects*
chemical_list: C009495:titanium dioxide; D007811:Lanthanum; D014025:Titanium