Preparation, Characterization and Photocatalytic Activity of Gd/N-Codoped TiO2

被引：7

作者：

Yang, Bo ^{[1
]}

Zhu, Zhiping ^{[1
]}

Zhou, Yi ^{[1
]}

Xia, Changbin ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Sch Chem & Environm Engn, Changsha 410076, Hunan, Peoples R China

来源：

JOURNAL OF SCIENTIFIC CONFERENCE PROCEEDINGS, VOL 1, NOS. 2 AND 3 | 2009年 / 1卷 / 2-3期

关键词：

Titania; Gd/N-Codoped; Photodegradation; Humic Acids; EARTH-DOPED TIO2; VISIBLE-LIGHT;

D O I：

10.1166/jcp.2009.1013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Gd/N codoped nano-TiO2 photocatalyst were synthesized by a sol-gel method and characterized by various analytical methods, such as TEM, XRD and UV-vis-DRS. The photocatalytic activity was evaluated by the photodegradation of Humic Acids (HA) in an aqueous solution under the ultraviolet irradiation. The experiment results showed that as-produced samples had higher photodegradation for HA than that of P-25, N doped nano-TiO2, and Gd doped nano-TiO2. Gd nanoparticles doped on the surface act as electron traps, enhancing the separation of electron-hole pairs, N atoms doped in TiO2 narrow the band gap, Gd/N codoped TiO2 nanopowders benefit from both of the effects.

引用

页码：243 / 246

页数：4

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