Preparation and characterization of ZnO hollow spheres and ZnO-Carbon composite materials using colloidal carbon spheres as templates

被引:165
作者
Wang, Xi
Hu, Peng
Fangli, Yuan [1 ]
Yu, Lingjie
机构
[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
关键词
D O I
10.1021/jp070382w
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 paper, a general strategy for synthesis of carbon-based core/ZnO-shell-type composite and hollow materials is reported. These materials include colloidal carbon spheres@ZnO nanospheres, ZnO-carbon composite "dandelions", ZnO-carbon branched "dandelions", Au-ZnO-carbon composite "dandelions", and size-tunable hollow ZnO spheres. As-synthesized composite "dandelions" exhibited a color change, which originated from the surface plasmon resonance of gold nanoparticles, showing their optical application. All products obtained show well photocatalytic activities and ZnO-carbon composite "dandelions" have the highest photocatalytic efficiency in all products.
引用
收藏
页码:6706 / 6712
页数:7
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