Preparation and Characterization of ZnO Hollow Spheres and ZnO−Carbon Composite Materials Using Colloidal Carbon Spheres as Templates
The Journal of Physical Chemistry C2007Vol. 111(18), pp. 6706–6712
Citations Over TimeTop 10% of 2007 papers
Abstract
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.
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