The effect of Lanthanum content,calcinating temperature and calcinating time on the photocatalytic activity of Lanthanum doping TiO 2 was investigated.The study showed that samples treated under higher temperature and...The effect of Lanthanum content,calcinating temperature and calcinating time on the photocatalytic activity of Lanthanum doping TiO 2 was investigated.The study showed that samples treated under higher temperature and longer calcinating time exhibited higher photocatalytic activity.The X ray diffraction pattern revealed that the lattice of those samples was highly expanded.It is suggested that the highly distorted crystal lattice may be involved in producing more ways by which the hole was captured.Thus,the photocatalytic activity of samples treated under higher temperature and longer time was promoted.展开更多
A supported titania film prepared from tetrabutyl titanate containing TiO 2 powder through the powder sol gel method by dip coating technique has been investigated. The results indicate that the film possesses porous ...A supported titania film prepared from tetrabutyl titanate containing TiO 2 powder through the powder sol gel method by dip coating technique has been investigated. The results indicate that the film possesses porous structure. Photocatalytic activity of the film is higher than that prepared simply through sol gel method and varies with the film thickness and diameter of TiO 2 particles. Furthermore, the activity is improved when Pt was loaded on the film by photoelectrochemical method.展开更多
文摘The effect of Lanthanum content,calcinating temperature and calcinating time on the photocatalytic activity of Lanthanum doping TiO 2 was investigated.The study showed that samples treated under higher temperature and longer calcinating time exhibited higher photocatalytic activity.The X ray diffraction pattern revealed that the lattice of those samples was highly expanded.It is suggested that the highly distorted crystal lattice may be involved in producing more ways by which the hole was captured.Thus,the photocatalytic activity of samples treated under higher temperature and longer time was promoted.
文摘A supported titania film prepared from tetrabutyl titanate containing TiO 2 powder through the powder sol gel method by dip coating technique has been investigated. The results indicate that the film possesses porous structure. Photocatalytic activity of the film is higher than that prepared simply through sol gel method and varies with the film thickness and diameter of TiO 2 particles. Furthermore, the activity is improved when Pt was loaded on the film by photoelectrochemical method.
