Nitridation of macroporous TiO2 and its photocatalytic activity

作者：Shao Gao Song^*; Zhang Xue Jun; Chen Tie Hong; Yuan Zhong Yong

来源：Acta Petrolei Sinica / Petroleum Processing Section, 2006, 22(SUPPL.): 249-252.

• Macropore
• Macroporous TiO2
• Nitridation
• Photocatalytic activity

Macroporous TiO2 was prepared in the absence of any templating agents. Its nitridation was performed through heating with the urea, and the obtained N-doped TiO2 was characterized by XRD, SEM, TEM, FT-IR, XPS and UV-VIS. The photocatalytic activity of N-doped TiO2 was tested by degradation of methyl-orange dye solution. It is shown that the macroporous structure of TiO2 retained after nitridation with high crystallinity of anatase phase, and the N-doping led to the shift of the visible light adsorption from 387 to 425 nm. The resultant N-doped macroporous TiO2 presented higher photocatalytic activity than the pure TiO2.

• 出版日期2006
• 单位南开大学