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作者:

Sang Li-Xia (Sang Li-Xia.) (学者:桑丽霞) | Ma Chong-Fang (Ma Chong-Fang.) | Sun Ji-Hong (Sun Ji-Hong.) (学者:孙继红) | Dai Hong-Xing (Dai Hong-Xing.) (学者:戴洪兴) | Wang Feng (Wang Feng.) | Li Jun (Li Jun.)

收录:

SCIE PKU CSCD

摘要:

Using non-surfacatant organic compounds triethanolamine as the template, TiO2 and Fe3+/V5+-TiO2 mesoporous materials were synthesized by sol-gel and hydrothermal method. The properties of the samples were investigated by XRD, TEM, BET and UV-Vis DRS. The XRD patterns and TEM images confirm that pure TiO2 have the wormhole-like mesoporous structure, which could be preserved by ethanol. extraction and destroyed by calcination of template at 450 degrees C. However, Fe3+/V5+-TiO2 removed template by calcination has the mesoporous structure, which suggests that the mesoporous structure can be steadied by the doped ion. The appropriate molar fraction of the doped ion is 0.5%. BET studies show that the N-2 adsorption-desorption isotherm plots of Fe3+/V5+-TiO2 exhibit type IV isotherms, and specific surface areas about 103.59 and 90.80 m(2)/g, respectively. The average pore diameter of Fe3+/V5+-TiO2 is about 10.5 and 9.6 ran, respectively. Based on the UV-Vis DRS, the gap adsorption edge in visible light region is revealed for the mesoporous Fe3+/V5+-TiO2, rather than in ultraviolet region of the commercial photocatalyst P25. It is also illuminated that the Fe or V ions are incorporated into the lattice positions of the TiO2 during the preparation.

关键词:

doping mesoporous materials TiO2 triethanolamine

作者机构:

  • [ 1 ] Beijing Educ Commiss, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Key Lab Heat Transfer & Energy Convers, Beijing 100022, Peoples R China
  • [ 2 ] Beijing Univ Technol, Coll Environm & Energy Engn, Beijing 100022, Peoples R China

通讯作者信息:

  • [Ma Chong-Fang]Beijing Educ Commiss, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Key Lab Heat Transfer & Energy Convers, Beijing 100022, Peoples R China

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来源 :

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE

ISSN: 0251-0790

年份: 2006

期: 9

卷: 27

页码: 1608-1611

1 . 0 0 0

JCR@2022

ESI学科: CHEMISTRY;

JCR分区:3

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