Design of TiO2 nanorods and nanotubes doped with lanthanum and comparative kinetic study in the photodegradation of formic acid

被引:42
作者
Meksi, M. [1 ]
Berhault, G. [2 ]
Guillard, C. [2 ]
Kochkar, H. [1 ,3 ]
机构
[1] Univ Tunis El Manar, Lab Chim Mat & Catalyse, Tunis, Tunisia
[2] Univ Lyon, CNRS, IRCELYON, Inst Rech Catalyse & Environm, F-69100 Villeurbanne, France
[3] Ctr Natl Rech Sci Mat, Lab Valorisat Mat Utiles, Hammam Lif, Tunisia
关键词
Lanthanum; Nanorods; Nanotubes; TiO2; Photocatalysis; Formic acid; PHOTOCATALYTIC ACTIVITY; TITANATE NANOTUBES; ELECTRODE;
D O I
10.1016/j.catcom.2014.12.020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Lanthanum doped 1D-TiO(2)nanomaterials (nanorods and nanotubes) with tuned structural and textural properties have been evaluated in the photocatalytic degradation of formic acid (FA) under UV conditions. La-doped nanorods and nanotubes calcined at 973 K show interesting photocatalytic properties with respect to La-free nanomaterials. The presence of La inhibits TiO2 crystallite growth and increases the lifetime of photo-generated electron-hole pairs. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:107 / 111
页数:5
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