Rectangular Porous ZnO–ZnS Nanocables and ZnS Nanotubes

Nanostructured ZnS nanocables and nanotubes (see Figure) with a rectangular cross section have been synthesized by chemical reaction using as-synthesized ZnO nanobelts as a template. A small blue shift is observed for the ZnO–ZnS cable structures, suggesting a small quantum confinement effect. The template-assisted method is demonstrated to be a unique technique for producing nanostructures with controlled morphology.