Photocatalytic properties of Ag@Ag-doped ZnO core-shell nanocomposite

被引：36
作者：
Yousefi, Hamid Reza [1 ]
Hashemi, Babak [1 ]
机构：
[1] Shiraz Univ, Dept Mat Sci & Engn, Shiraz, Iran
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2019年 / 375卷
关键词：
Pechini sol-gel; Core-shell; ZnO; Photocatalytic activity; Methylene blue; METHYLENE-BLUE DYE; DEGRADATION; PHOTOLUMINESCENCE; SOLAR;
D O I：
10.1016/j.jphotochem.2019.02.008
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, pristine ZnO nanoparticles (NPs), Ag@ZnO core-shell (CS) nanocomposites and Ag@ Ag-doped ZnO CS nanocomposites were synthesized using Pechini sol-gel method. The synthesized samples were characterized by X-ray diffraction (XRD), Ultraviolet-Visible (UV-vis) spectroscopy, Photoluminescence (PL) test, Field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). Photocatalytic activity of the samples was tested by studying the oxidation of methylene blue (MB) solution. The enhanced photocatalytic activity of Ag@ Ag-doped ZnO CS nanocomposites was attributed to the efficient suppression of electron-hole recombination in ZnO shell due to the strong electron scavenging action of Ag NPs.
引用
收藏
页码：71 / 76
页数：6
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