Silver and copper co-impregnated onto TiO2-P25 nanoparticles and its photocatalytic activity

被引：91

作者：

Behnajady, Mohammad A. ^{[1
]}

Eskandarloo, Hamed ^{[1
]}

机构：

[1] Islamic Azad Univ, Fac Sci, Dept Chem, Tabriz Branch, Tabriz, Iran

来源：

CHEMICAL ENGINEERING JOURNAL | 2013年 / 228卷

关键词：

Heterogeneous photocatalysis; Nanoparticles; TiO2-P25; Co-doped TiO2; Impregnation method; CI Acid Orange 7; TITANIUM-DIOXIDE NANOMATERIALS; LIGHT IRRADIATION; VISIBLE-LIGHT; ORGANIC POLLUTANTS; ZNO PHOTOCATALYST; IMMOBILIZED TIO2; UV/TIO2; PROCESS; PARTICLE-SIZE; THIN-FILMS; DEGRADATION;

D O I：

10.1016/j.cej.2013.04.110

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：1207 / 1213

页数：7

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