Photocatalytic degradation of organic dyes by Er3+: YAlO3/Co- and Fe-doped ZnO coated composites under solar irradiation
- 作者: Chen Y.1, Lu C.1, Tang L.1, Song Y.1, Wei S.1, Rong Y.2, Zhang Z.2, Wang J.1
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隶属关系:
- College of Chemistry
- College of Environment
- 期: 卷 90, 编号 13 (2016)
- 页面: 2654-2664
- 栏目: Photochemistry and Magnetochemistry
- URL: https://journals.rcsi.science/0036-0244/article/view/169138
- DOI: https://doi.org/10.1134/S0036024416130203
- ID: 169138
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详细
In this work, the Er3+: YAlO3/Co- and Fe-doped ZnO coated composites were prepared by the sol-gel method. Then, they were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDX). Photo-degradation of azo fuchsine (AF) as a model dye under solar light irradiation was studied to evaluate the photocatalytic activity of the Er3+: YAlO3/Co- and Fe-doped ZnO coated composites. It was found that the photocatalytic activity of Co- and Fe-doped ZnO composites can be obviously enhanced by upconversion luminescence agent (Er3+: YAlO3). Besides, the photocatalytic activity of Er3+: YAlO3/Fe-doped ZnO is better than that of Er3+: YAlO3/Co-doped ZnO. The influence of experiment conditions, such as the concentration of Er3+: YAlO3, heat-treatment temperature and time on the photocatalytic activity of the Er3+: YAlO3/Co- and Fe-doped ZnO coated composites was studied. In addition, the effects of solar light irradiation time, dye initial concentration, Er3+: YAlO3/Co- and Fe-doped ZnO amount on the photocatalytic degradation of azo fuchsine in aqueous solution were investigated in detail. Simultaneously, some other organic dyes, such as Methyl Orange (MO), Rhodamine B (RM-B), Acid Red B (AR-B), Congo Red (CR), and Methyl Blue (MB) were also studied. The possible excitation principle of Er3+: YAlO3/Co- and Fe-doped ZnO coated composites under solar light irradiation and the photocatalytic degradation mechanism of organic dyes were discussed.
作者简介
Yang Chen
College of Chemistry
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Chunxiao Lu
College of Chemistry
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Liang Tang
College of Chemistry
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Yahui Song
College of Chemistry
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Shengnan Wei
College of Chemistry
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Yang Rong
College of Environment
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Zhaohong Zhang
College of Environment
Email: wangjun888tg@126.com
中国, Shenyang, 110036
Jun Wang
College of Chemistry
编辑信件的主要联系方式.
Email: wangjun888tg@126.com
中国, Shenyang, 110036