Controlled anisotropic growth of Ag nanoparticles on oil-decorated TiO2 films with photocatalytic reduction method

被引：7
|
作者：
Li, Shuai [1 ]
Tao, Qiang [1 ]
Li, Dawei [1 ]
Zhang, Qingyu [1 ]
机构：
[1] Dalian Univ Technol, Sch Phys & Optoelect Technol, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH | 2014年 / 29卷 / 21期
关键词：
ENHANCED RAMAN-SCATTERING; PLASMON RESONANCE; ORIENTED ATTACHMENT; TITANIUM-DIOXIDE; SILVER NANOPARTICLES; METAL NANOPARTICLES; OPTICAL-PROPERTIES; THIN-FILMS; CHARGE; NANOCOMPOSITES;
D O I：
10.1557/jmr.2014.283
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ag-TiO2 hybrids are useful in various applications, such as photocatalysis, solar energy conversion, and biosensoring. In this study, oil-decorated TiO2 films were used to induce the formation of Ag nanoplates in AgNO3 solution via a photocatalytic method. Ag nanoplates in the products can be controlled by changing the oil-decoration time of films or changing the AgNO3 concentration of the solution. Oil decoration was found to be necessary in the formation of Ag nanoplates, and a critical concentration of AgNO3 solution was needed. The oil layer on the TiO2 films was demonstrated to play a role in the prevention of the reoxidation of the Ag atoms, and a growth model was proposed to interpret the formation of Ag nanoplates on the oil-decorated TiO2 films.
引用
收藏
页码：2497 / 2504
页数：8
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