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Citation: Shui Miao, Yue Lin-Hai, Xu Zhu-De. Effect of Lanthanum Doping on the Photocatalytic Activity of Titanium Dioxide[J]. Acta Physico-Chimica Sinica, ;2000, 16(05): 459-463. doi: 10.3866/PKU.WHXB20000517 shu

Effect of Lanthanum Doping on the Photocatalytic Activity of Titanium Dioxide

1.
Department of Chemistry,Zhejiang University,Hangzhou 310027

Received Date: 14 June 1999
Available Online: 15 May 2000

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.
- Lanthanum doping,
- Photocatalytic activity,
- Titanium dioxide,
- Lanttice expansion
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