期刊
CHINESE JOURNAL OF CHEMICAL PHYSICS
卷 25, 期 1, 页码 96-102出版社
CHINESE PHYSICAL SOC
DOI: 10.1088/1674-0068/25/01/96-102
关键词
Mesoporous titanium dioxide; Lanthanum-doping; Photocatalytic activity; Phenol
资金
- National Natural Science Foundation of China [41173119]
Lanthanum doped mesoporous titanium dioxide photocatalysts with different La content were synthesized by template method using tetrabutyltitanate (Ti(OC4H9)(4)) as precursor and Pluronic P123 as template. The catalysts were characterized by thermogravimetric differential thermal analysis. N-2 adsorption-desorption measurements, X-ray diffraction, and UV-Vis adsorption spectroscopy. The effect of La3+ doping concentration from 0.1% to 1% on the photocatalytic activity of mesoporous TiO2 was investigated. The characterizations indicated that the photocatalysts possessed a homogeneous pore diameter of about 10 nm with high surface area of 165 m(2)/g. X-ray photoelectron spectroscopy measurements indicated the presence of C in the doped samples in addition to La. Compared with pure mesoporous TiO2, the La-doped samples extended the photoabsorption edge into the visible light region. The results of phenol photodecomposition showed that La-doped mesoporous TiO2 exhibited higher photocatalytic activities than pure rnesoporous TiO2 under UV and visible light irradiation.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据