期刊
CHEMICAL ENGINEERING JOURNAL
卷 228, 期 -, 页码 1207-1213出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2013.04.110
关键词
Heterogeneous photocatalysis; Nanoparticles; TiO2-P25; Co-doped TiO2; Impregnation method; CI Acid Orange 7
资金
- Islamic Azad University - Tabriz branch
In this work, monometallic and bimetallic silver and copper impregnated TiO2-P25 nanoparticles were prepared via impregnation method. X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), UV-vis diffuse reflectance spectroscopy (DRS) and N-2 physisorption techniques were used for the characterization of prepared nanoparticles. The photocatalytic activity was evaluated versus the removal of C.I. Acid Orange 7. Co-impregnated Ag,Cu/TiO2-P25 nanoparticles showed the highest photocatalytic activity compared to Ag/TiO2-P25, Cu/TiO2-P25 and bare TiO2-P25 nanoparticles. The optimum contents of silver and copper for the preparation of co-impregnated Ag,Cu/TiO2-P25 nanoparticles were 1 and 0.03 at. mol%, respectively. The maximum photocatalytic activity of Ag,Cu/TiO2-P25 nanoparticles was obtained for a catalyst calcined at 450 degrees C. (C) 2013 Elsevier B.V. All rights reserved.
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