Preparation and photocatalytic activity of TiO_2 nanoparticles co-doped with Fe and La

作     者：Zhongliang Shi Xiaoxia Zhang Shuhua Yao 

作者机构：School of Applied Chemistry Shenyang University of Chemical Technology Shenyang 110142 China 

出 版 物：《Particuology》 (颗粒学报（英文版）)

年 卷 期：2011年第9卷第3期

页      面：260-264页

核心收录：

学科分类：081705[工学-工业催化] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：supported by the Education Bureau Foundation of Liaoning Province (No. 2008573) the Doctor Foundation of Shenyang Institute of Chemical Technology (No. 20063202) 

主　　题：Titanium dioxide Photocatalysis Co doping Phenol 

摘      要：The catalysts of un-doped, single-doped and co-doped titanium dioxide （TiO2） nanoparticles were prepared by a sol-gel method with Ti（OC4H9 ）4 as a Ti source material. The photo-absorbance of the obtained nanoparticles was measured by UV-vis diffusive reflectance spectroscopy （UV-vis DRS）, and the photocatalytic activity of the prepared samples under UV and visible light was estimated by measuring the degradation rate of phenol （50 mg/L） in an aqueous solution. The effect of Fe and La co-dopants on the material properties was investigated by X-ray diffraction （XRD）, scanning electron microscopy （SEM） and N2 adsorption-desorption isotherm measurement. It was shown that the co-doped TiO2 could be activated by visible light and could thus be used as an effective catalyst in photo-oxidation reactions. The photocatalytic activity of TiO2 co-doped with Fe and La is markedly improved due to the synergistic actions of the two dopants.