Fabrication of AgAu alloy-TiO2 core-shell nanoparticles and their photocatalytic properties

被引：4
|
作者：
Zhang X.-Y. [1 ]
Yuan S.-L. [2 ]
Yuan Y.-Z. [1 ]
Li X. [2 ]
机构：
[1] College of Materials Science and Engineering, Shandong University of Technology, Zibo
[2] School of Chemistry and Chemical Engineering, University of Jinan, Jinan
来源：
Optoelectronics Letters | 2015年 / 11卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Aromatic compounds - Binary alloys - Photocatalysis - Shells (structures) - Sol-gels - Core shell nanoparticles - Sol-gel process - Block copolymers - Fabrication - Silver alloys;
D O I：
10.1007/s11801-015-4203-2
中图分类号：
学科分类号：
摘要：
In this paper, for improving the photocatalytic efficiency of titania (TiO2) nanoparticles (NPs), AgAu alloy-TiO2 core-shell NPs are fabricated via a sol-gel (SG) process in the presence of AgAu alloy NPs with block copolymer shells as templates. The photocatalytic activities of the AgAu-TiO2 NPs on the photodecomposition of methylene blue (MB) are investigated. The AgAu-TiO2 composite NPs coated with 5.0% titania related to block copolymers show higher photocatalytic activity than the other samples in which the titania contents are larger than 5.0%. The results indicate that the increase of the thickness of the TiO2 shell leads to the decrease of the photocatalytic activity. © 2015, Tianjin University of Technology and Springer-Verlag Berlin Heidelberg.
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页码：1 / 4
页数：3
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