Highly ordered Ag–TiO2 nanocomposited arrays with high visible-light photocatalytic activity

被引：0
作者：
Cong Zhao
Da-chuan Zhu
Xiao-yao Cheng
Shi-xiu Cao
机构：
[1] Chongqing University of Arts and Sciences,Research Institute for New Materials Technology
[2] Sichuan University,College of Materials Science and Engineering
来源：
Frontiers of Materials Science | 2017年 / 11卷
关键词：
TiO; nanoparticles; silver; heterojunction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
TiO2 is active only in the ultraviolet region. To enhance the active ability, a combined method consisting of the anodic oxidation method and the hydrothermal method was developed to prepare highly ordered Ag-TiO2 nanocomposited arrays. The anodic oxidation was used to synthesize amorphous nanotubes with high chemical activity that subsequently served as highly ordered templates in preparing the final sample. The amorphous nanotubes got converted to highly ordered Ag-TiO2 (anatase) arrays in the silver nitrate & glucose aqueous solution via hydrothermal treatment. SEM and TEM results show that the Ag-TiO2 nanocomposite was composed of a large number of Ag nanoparticles and anatase TiO2 nanoparticles, and the morphology of those at the top of the arrays was found different from that of its trunk. The morphology evolution mechanism of the obtained sample was discussed. It is also revealed that the Ag-TiO2 nanocomposite has high visible-light photocatalytic activity.
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页码：241 / 249
页数：8
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