Synthesis and high photocatalytic activity of Eu-doped ZnO nanoparticles

被引：156
作者：
Zong, Yanqing [1 ]
Li, Zhe [1 ]
Wang, Xingmin [1 ]
Ma, Jiantao [1 ]
Men, Yi [1 ]
机构：
[1] Beijing Normal Univ, Coll Chem, Beijing Key Lab Energy Convers & Storage Mat, Beijing 100875, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2014年 / 40卷 / 07期
关键词：
Eu-doped ZnO; Nanoparticles; Photocatalysis; Photodegradation; GROWTH-MECHANISM; DEGRADATION; PHOTOLUMINESCENCE; OXIDATION; NANORODS; NANOSTRUCTURES; GREEN; DYES;
D O I：
10.1016/j.ceramint.2014.02.123
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pure ZnO and Eu-doped ZnO nanoparticles (NPs) with different amounts of Eu were prepared using a simple precipitation method. The as-synthesized photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), UV-vis diffuse reflectance spectroscopy (DRS), inductively coupled plasma (ICP), X-ray photoelectron spectroscopy (XPS), fluorescence spectroscopy and N-2 adsorption-desorption isotherms. The activity of the as-prepared photocatalysts was evaluated based on the photodegradation of methyl orange (MO) under UV light. The 1.0 mol% Eu-doped ZnO NPs exhibited the best photocatalytic activity. The effects of photocatalyst loading, the initial dye concentration and pH values on the photodegradation efficiency were studied using the 1.0 mol% Eu-doped ZnO photocatalyst, and the optimum conditions were determined. In addition, the Eu-doped ZnO NPs were easily recovered and reused. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：10375 / 10382
页数：8
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