Photocatalytic removal of cyanide by cobalt metal doped on TiO2-SiO2 nanoparticles by photo-assisted deposition and impregnation methods

被引:26
作者
Baeissa, Elham S. [1 ]
机构
[1] King Abdulaziz Univ, Dept Chem, Fac Sci, Jeddah 21589, Saudi Arabia
关键词
Photoassisted deposition; TiO2-SiO2; Cyanide removal; Visible photocatalyst; DEGRADATION; DECOMPOSITION; REDUCTION; PALLADIUM; OXIDATION; ZEOLITES; CATALYST; FILMS; CO2;
D O I
10.1016/j.jiec.2013.12.076
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cobalt metal was doped on TiO2-SiO2 by photo-assisted deposition (PAD) and impregnation (Img) methods. The prepared catalysts were characterized by different techniques such as XRD, XAFS, TEM, and nitrogen adsorption analysis. Photocatalytic reactivity using Co/TiO2-SiO2 catalysts under visible-light conditions on the oxidation of cyanide with O-2 reaction was evaluated. The results have shown notable photocatalytic activity of PAD-Co/TiO2-SiO2 which was 1.7 and 10 times higher than that of Img-Co/TiO2-SiO2 and TiO2-SiO2, respectively. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:3761 / 3766
页数:6
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