Preparation and Characterization of Bimetal Core-Shell Structure Supported Au@Ag/TiO2 Catalyst

被引：0
|
作者：
Sun Yan-Hong [1 ]
Zhang Min [1 ]
Yang Jian-Jun [1 ]
机构：
[1] Henan Univ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2009年 / 25卷 / 11期
关键词：
core-shell structure; composite nanoparticles; supported catalyst; photocatalysis; elimination of ozone; PHOTOCATALYTIC DECOMPOSITION; GASEOUS OZONE; TIO2; AU/TIO2; NANOPARTICLES; DEPOSITION;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Core-shell Au@Ag nanoparticles were prepared by the sol method and deposited on TiO2 nanoparticles by the powder-sol method and the hydrothermal method. The structure of sol and Au@Ag/TiO2 was characterized by UV-Vis, XRD, and TEM techniques. The activity of phtocatalytic elimination of ozone was investigated on Au@Ag/TiO2 surface. The results show that preparation method, Au/Ag stoichiometric proportion and the metal loading have great effect on the activity of photocatalytic elimination of ozone. 1%Au@Ag/TiO2(n(Au)/n(Ag)=1:3) photocatalyst prepared by powder-sol method has the best activity for photocatalytic elimination of ozone due to the small particle size of Au@Ag, higher dispersion of metal and the effective separation of the photo-generated electron and hole.
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页码：1965 / 1970
页数：6
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